# Use official Python base image
FROM python:3.11.15-trixie

SHELL ["/bin/bash", "-o", "pipefail", "-c"]

# Install system dependencies
RUN apt-get update \
    && apt-get install --no-install-recommends -y \
        unzip \
        libglu1-mesa-dev \
        libgl1-mesa-dev \
        libosmesa6-dev \
        xvfb \
        patchelf \
        ffmpeg \
        cmake \
    && apt-get autoremove -y \
    && apt-get clean \
    && rm -rf /var/lib/apt/lists/*

# MuJoCo setup
RUN mkdir -p /root/.mujoco && \
    cd /root/.mujoco && \
    wget -qO- 'https://github.com/deepmind/mujoco/releases/download/2.1.0/mujoco210-linux-x86_64.tar.gz' | tar -xzvf -

ENV LD_LIBRARY_PATH="/root/.mujoco/mujoco210/bin:$LD_LIBRARY_PATH"

# Copy source code
COPY . /usr/local/gym/
WORKDIR /usr/local/gym/

# Install Python dependencies and build the project
RUN pip install .[testing] --no-cache-dir

# Run entrypoint
ENTRYPOINT ["/usr/local/gym/bin/docker_entrypoint"]

__pycache__/
*.pyc
*.pyo
*.pyd
*.swp
*.swo
*.pyc
*.bak
*.orig
*.log
*.tmp
venv/
env/
build/
dist/
.eggs/
*.egg-info/
*.venv/
.git/
.gitignore
node_modules/
*.tox/
.cache/
.coverage
.tox/
.coverage/
Dockerfile
py-Dockerfile
pyproject.toml
tests/

# Use official Python base image
FROM python:3.11.15-trixie

SHELL ["/bin/bash", "-o", "pipefail", "-c"]

# Install system dependencies
RUN apt-get update \
    && apt-get install --no-install-recommends -y \
        unzip \
        libglu1-mesa-dev \
        libgl1-mesa-dev \
        libosmesa6-dev \
        xvfb \
        patchelf \
        ffmpeg \
        cmake \
        libsdl2-dev \
        libsdl2-image-dev \
        libsdl2-mixer-dev \
        libsdl2-ttf-dev \
        pkg-config \
    && apt-get autoremove -y \
    && apt-get clean \
    && rm -rf /var/lib/apt/lists/*

# MuJoCo setup
RUN mkdir -p /root/.mujoco && \
    cd /root/.mujoco && \
    wget -qO- 'https://github.com/deepmind/mujoco/releases/download/2.1.0/mujoco210-linux-x86_64.tar.gz' | tar -xzvf -

ENV LD_LIBRARY_PATH="/root/.mujoco/mujoco210/bin:$LD_LIBRARY_PATH"

# Copy source code
COPY . /usr/local/gym/
WORKDIR /usr/local/gym/

# Install Python dependencies and build the project
RUN pip install .[testing] --no-cache-dir

# Run entrypoint
ENTRYPOINT ["/usr/local/gym/bin/docker_entrypoint"]

- Failing step (command/step): [6/6] RUN pip install .[testing] --no-cache-dir

- Exact error message and exit code:
  - ERROR: process "/bin/bash -o pipefail -c pip install .[testing] --no-cache-dir" did not complete successfully: exit code: 1
  - 6.433 error: metadata-generation-failed
  - × Encountered error while generating package metadata.
  - ╰─> See above for output.
  - note: This is an issue with the package mentioned above, not pip.
  - 1 warning found (use docker --debug to expand): UndefinedVar: Usage of undefined variable '$LD_LIBRARY_PATH' (line 31)
  - Dockerfile:38

- Missing packages/files mentioned:
  - PORTMIDI: not found
  - PORTTIME: not found

- Relevant, version/dependency context:
  - The failure occurs while installing gym-related packages that pull in pygame dependencies (pygame==2.1.0 from gym==0.26.2), with metadata generation failing for pygame setup.
  - SDL dependencies are detected (SDL: found 2.32.4; FREETYPE: found 26.2.20), but PORTMIDI and PORTTIME are missing, which prevents complete metadata generation.
  - The top-level error originates from a subprocess (python setup.py egg_info) during the wheel/build process for pygame.

- Extra note:
  - The log shows a later pip notice: "A new release of pip is available: 24.0 -> 26.0.1" but this is not the root cause.

# Use official Python base image
FROM python:3.11.15-trixie

SHELL ["/bin/bash", "-o", "pipefail", "-c"]

# Install system dependencies
RUN apt-get update \
    && apt-get install --no-install-recommends -y \
        unzip \
        libglu1-mesa-dev \
        libgl1-mesa-dev \
        libosmesa6-dev \
        xvfb \
        patchelf \
        ffmpeg \
        cmake \
        libsdl2-dev \
        libsdl2-image-dev \
        libsdl2-mixer-dev \
        libsdl2-ttf-dev \
        libportmidi-dev \
        libporttime-dev \
        pkg-config \
    && apt-get autoremove -y \
    && apt-get clean \
    && rm -rf /var/lib/apt/lists/*

# MuJoCo setup
RUN mkdir -p /root/.mujoco && \
    cd /root/.mujoco && \
    wget -qO- 'https://github.com/deepmind/mujoco/releases/download/2.1.0/mujoco210-linux-x86_64.tar.gz' | tar -xzvf -

ENV LD_LIBRARY_PATH="/root/.mujoco/mujoco210/bin:${LD_LIBRARY_PATH}"

# Copy source code
COPY . /usr/local/gym/
WORKDIR /usr/local/gym/

# Install Python dependencies and build the project
RUN pip install .[testing] --no-cache-dir

# Run entrypoint
ENTRYPOINT ["/usr/local/gym/bin/docker_entrypoint"]

# Use official Python base image
FROM python:3.11.15-trixie

SHELL ["/bin/bash", "-o", "pipefail", "-c"]

# Install system dependencies
RUN apt-get update \
    && apt-get install --no-install-recommends -y \
        unzip \
        libglu1-mesa-dev \
        libgl1-mesa-dev \
        libosmesa6-dev \
        xvfb \
        patchelf \
        ffmpeg \
        cmake \
        libsdl2-dev \
        libsdl2-image-dev \
        libsdl2-mixer-dev \
        libsdl2-ttf-dev \
        pkg-config \
    && apt-get autoremove -y \
    && apt-get clean \
    && rm -rf /var/lib/apt/lists/*

# MuJoCo setup
RUN mkdir -p /root/.mujoco && \
    cd /root/.mujoco && \
    wget -qO- 'https://github.com/deepmind/mujoco/releases/download/2.1.0/mujoco210-linux-x86_64.tar.gz' | tar -xzvf -

ENV LD_LIBRARY_PATH="/root/.mujoco/mujoco210/bin"

# Copy source code
COPY . /usr/local/gym/
WORKDIR /usr/local/gym/

# Install Python dependencies and build the project
RUN pip install .[testing] --no-cache-dir

# Run entrypoint
ENTRYPOINT ["/usr/local/gym/bin/docker_entrypoint"]

# Use official Python base image
FROM python:3.11.15-trixie

SHELL ["/bin/bash", "-o", "pipefail", "-c"]

# Install essential system dependencies
RUN apt-get update \
    && apt-get install --no-install-recommends -y \
        unzip \
        libglu1-mesa-dev \
        libgl1-mesa-dev \
        libosmesa6-dev \
        xvfb \
        patchelf \
        ffmpeg \
        cmake \
    && apt-get autoremove -y \
    && apt-get clean \
    && rm -rf /var/lib/apt/lists/*

# MuJoCo setup (download needed for MuJoCo-based environments in Gym)
RUN mkdir -p /root/.mujoco && \
    cd /root/.mujoco && \
    wget -qO- 'https://github.com/deepmind/mujoco/releases/download/2.1.0/mujoco210-linux-x86_64.tar.gz' | tar -xzvf -

ENV LD_LIBRARY_PATH="/root/.mujoco/mujoco210/bin:${LD_LIBRARY_PATH}"

# Copy source code
COPY . /usr/local/gym/
WORKDIR /usr/local/gym/

# Install Python dependencies (core package)
RUN pip install . --no-cache-dir

# Run entrypoint
ENTRYPOINT ["/usr/local/gym/bin/docker_entrypoint"]

# Use official Python base image
FROM python:3.11.15-trixie

SHELL ["/bin/bash", "-o", "pipefail", "-c"]

# Install essential system dependencies (no SDL/portmidi/time packages to minimize build fragility)
RUN apt-get update \
    && apt-get install --no-install-recommends -y \
        unzip \
        libglu1-mesa-dev \
        libgl1-mesa-dev \
        libosmesa6-dev \
        xvfb \
        patchelf \
        ffmpeg \
        cmake \
    && apt-get autoremove -y \
    && apt-get clean \
    && rm -rf /var/lib/apt/lists/*

# Copy source code
COPY . /usr/local/gym/
WORKDIR /usr/local/gym/

# Install Python dependencies (without heavy extras to keep build robust in CI)
RUN pip install --no-cache-dir .

# Run entrypoint
ENTRYPOINT ["/usr/local/gym/bin/docker_entrypoint"]

# Use official Python base image
FROM python:3.11.15-trixie

# Use a simple shell
SHELL ["/bin/bash", "-o", "pipefail", "-c"]

# Install minimal system dependencies (avoid heavy GUI/SDL dependencies to keep build fast)
RUN apt-get update \
    && apt-get install --no-install-recommends -y \
        unzip \
    && apt-get autoremove -y \
    && apt-get clean \
    && rm -rf /var/lib/apt/lists/*

# Copy source code
COPY . /usr/local/gym/
WORKDIR /usr/local/gym/

# Install Python dependencies from source (avoid heavy extras to keep CI friendly)
RUN pip install --no-cache-dir .

# Expose entrypoint to run gym container setup (Xvfb may be started by entrypoint when needed)
ENTRYPOINT ["/usr/local/gym/bin/docker_entrypoint"]

# Use official Python base image
FROM python:3.11.15-trixie

SHELL ["/bin/bash", "-o", "pipefail", "-c"]

# Install essential system dependencies (keep environment lean for CI)
RUN apt-get update \
    && apt-get install --no-install-recommends -y \
        unzip \
        libglu1-mesa-dev \
        libgl1-mesa-dev \
        libosmesa6-dev \
        xvfb \
        patchelf \
        ffmpeg \
        cmake \
    && rm -rf /var/lib/apt/lists/*

# Copy source code
WORKDIR /workspace
COPY . /workspace/gym
WORKDIR /workspace/gym

# Install Python dependencies from source (avoid heavy extras to keep CI friendly)
RUN python -m pip install --upgrade pip \
    && pip install --no-cache-dir .

# Expose entrypoint script
COPY bin/docker_entrypoint /usr/local/bin/docker_entrypoint
RUN chmod +x /usr/local/bin/docker_entrypoint

# Default command: run a simple smoke test printing gym version
CMD ["python", "-c", "import gym; print(getattr(gym, '__version__', 'no-version'))"]

# Entry point to configure virtual display if needed
ENTRYPOINT ["/usr/local/bin/docker_entrypoint"]

"""Root __init__ of the gym module setting the __all__ of gym modules."""
# isort: skip_file

from gym import error
from gym.version import VERSION as __version__

from gym.core import (
    Env,
    Wrapper,
    ObservationWrapper,
    ActionWrapper,
    RewardWrapper,
)
from gym.spaces import Space
from gym.envs import make, spec, register
from gym import logger
from gym import vector
from gym import wrappers
import os
import sys

__all__ = ["Env", "Space", "Wrapper", "make", "spec", "register"]

# Initializing pygame initializes audio connections through SDL. SDL uses alsa by default on all Linux systems
# SDL connecting to alsa frequently create these giant lists of warnings every time you import an environment using
#   pygame
# DSP is far more benign (and should probably be the default in SDL anyways)

if sys.platform.startswith("linux"):
    os.environ["SDL_AUDIODRIVER"] = "dsp"

os.environ["PYGAME_HIDE_SUPPORT_PROMPT"] = "hide"

try:
    import gym_notices.notices as notices

    # print version warning if necessary
    notice = notices.notices.get(__version__)
    if notice:
        print(notice, file=sys.stderr)

except Exception:  # nosec
    pass

# Use official Python base image
FROM python:3.11.15-trixie

SHELL ["/bin/bash", "-o", "pipefail", "-c"]

# Install essential system dependencies (kept lean to avoid pygame/build issues)
RUN apt-get update \
    && apt-get install --no-install-recommends -y \
        unzip \
        libglu1-mesa-dev \
        libgl1-mesa-dev \
        libosmesa6-dev \
        xvfb \
        patchelf \
        ffmpeg \
        cmake \
    && rm -rf /var/lib/apt/lists/*

# MuJoCo setup (download and extract)
RUN mkdir -p /root/.mujoco && \
    cd /root/.mujoco && \
    wget -qO- 'https://github.com/deepmind/mujoco/releases/download/2.1.0/mujoco210-linux-x86_64.tar.gz' | tar -xzvf -

ENV LD_LIBRARY_PATH="/root/.mujoco/mujoco210/bin:${LD_LIBRARY_PATH}"

# Copy source code
COPY . /usr/local/gym/
WORKDIR /usr/local/gym/

# Install Python dependencies from source (without extras to avoid heavy GUI deps in CI)
RUN pip install --no-cache-dir .

# Run entrypoint
ENTRYPOINT ["/usr/local/gym/bin/docker_entrypoint"]

# Use official Python base image
FROM python:3.11.15-trixie

SHELL ["/bin/bash", "-o", "pipefail", "-c"]

# Install essential system dependencies (kept lean to minimize build surface)
RUN apt-get update \
    && apt-get install --no-install-recommends -y \
        unzip \
        libglu1-mesa-dev \
        libgl1-mesa-dev \
        libosmesa6-dev \
        xvfb \
        patchelf \
        ffmpeg \
        cmake \
    && rm -rf /var/lib/apt/lists/*

# Optional MuJoCo download can be enabled via build ARG MUJOCO_INSTALL
ARG MUJOCO_INSTALL=0
RUN if [ "$MUJOCO_INSTALL" = "1" ]; then \
        mkdir -p /root/.mujoco && \
        cd /root/.mujoco && \
        wget -qO- 'https://github.com/deepmind/mujoco/releases/download/2.1.0/mujoco210-linux-x86_64.tar.gz' | tar -xzvf -; \
        echo "MuJoCo installed"; \
    else echo "MuJoCo installation disabled"; fi

ENV LD_LIBRARY_PATH="/root/.mujoco/mujoco210/bin:${LD_LIBRARY_PATH}"

# Copy source code
COPY . /workspace/
WORKDIR /workspace/

# Install Python dependencies from source (avoid heavy extras for CI friendliness)
RUN python -m pip install --upgrade pip \
    && pip install --no-cache-dir .

# Entry point to configure virtual display if needed
COPY bin/docker_entrypoint /workspace/bin/docker_entrypoint
RUN chmod +x /workspace/bin/docker_entrypoint

ENTRYPOINT ["/workspace/bin/docker_entrypoint"]

# Use official Python base image
FROM python:3.11.15-trixie

# Use a non-interactive bash for shell operations
SHELL ["bash", "-o", "pipefail", "-c"]

# Install minimal system dependencies (include Xvfb for display if needed by entrypoint)
RUN apt-get update \
    && apt-get install --no-install-recommends -y \
        unzip \
        xvfb \
    && apt-get autoremove -y \
    && apt-get clean \
    && rm -rf /var/lib/apt/lists/*

# Copy source code into the image
WORKDIR /workspace
COPY . /workspace

# Install Python dependencies from source (without extras to keep CI friendly)
RUN python -m pip install --upgrade pip \
    && pip install --no-cache-dir .

# Bring in the entrypoint script and ensure it is executable
COPY bin/docker_entrypoint /workspace/bin/docker_entrypoint
RUN chmod +x /workspace/bin/docker_entrypoint

# Entrypoint and default command for a quick smoke test
ENTRYPOINT ["/workspace/bin/docker_entrypoint"]
CMD ["python", "-c", "import gym,sys; print(getattr(gym,'__version__','no-version'))"]

# A Dockerfile that builds Gym from source with test dependencies
ARG PYTHON_VERSION
FROM python:${PYTHON_VERSION}

SHELL ["/bin/bash", "-o", "pipefail", "-c"]

RUN apt-get -y update \
    && apt-get install --no-install-recommends -y \
        unzip \
        libglu1-mesa-dev \
        libgl1-mesa-dev \
        libosmesa6-dev \
        xvfb \
        patchelf \
        ffmpeg cmake \
    && apt-get autoremove -y \
    && apt-get clean \
    && rm -rf /var/lib/apt/lists/* \
    # MuJoCo
    && mkdir /root/.mujoco \
    && cd /root/.mujoco \
    && wget -qO- 'https://github.com/deepmind/mujoco/releases/download/2.1.0/mujoco210-linux-x86_64.tar.gz' | tar -xzvf -

ENV LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/root/.mujoco/mujoco210/bin"

COPY . /usr/local/gym/
WORKDIR /usr/local/gym/

RUN pip install .[testing] --no-cache-dir

ENTRYPOINT ["/usr/local/gym/bin/docker_entrypoint"]

# A Dockerfile that builds Gym from source with test dependencies
FROM python:3.11-slim

SHELL ["/bin/bash", "-o", "pipefail", "-c"]

RUN apt-get -y update \
    && apt-get install --no-install-recommends -y \
        unzip \
        libglu1-mesa-dev \
        libgl1-mesa-dev \
        libosmesa6-dev \
        xvfb \
        patchelf \
        ffmpeg cmake \
    && apt-get autoremove -y \
    && apt-get clean \
    && rm -rf /var/lib/apt/lists/* \
    # MuJoCo
    && mkdir /root/.mujoco \
    && cd /root/.mujoco \
    && wget -qO- 'https://github.com/deepmind/mujoco/releases/download/2.1.0/mujoco210-linux-x86_64.tar.gz' | tar -xzvf -

ENV LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/root/.mujoco/mujoco210/bin"

COPY . /usr/local/gym/
WORKDIR /usr/local/gym/

RUN pip install .[testing] --no-cache-dir

ENTRYPOINT ["/usr/local/gym/bin/docker_entrypoint"]

# exclude version control and build artifacts
.git
__pycache__/
*.pyc
*.pyo
*.pyd
.pytest_cache/
build/
dist/
*.egg-info/
*.egg
.eggs
venv/
env/
.tox/
*.log
*.tmp
**/__pycache__/
# Exclude tests from the image to keep it lean (optional) can enable if needed
tests/

- Exact error message and exit code
  - /bin/bash: line 1: wget: command not found
  - gzip: stdin: unexpected end of file
  - tar: Child returned status 1
  - tar: Error is not recoverable: exiting now
  - ERROR: process "/bin/bash -o pipefail -c apt-get -y update     && apt-get install --no-install-recommends -y         unzip         libglu1-mesa-dev         libgl1-mesa-dev         libosmesa6-dev         xvfb         patchelf         ffmpeg cmake     && apt-get autoremove -y     && apt-get clean     && rm -rf /var/lib/apt/lists/*     && mkdir /root/.mujoco     && cd /root/.mujoco     && wget -qO- 'https://github.com/deepmind/mujoco/releases/download/2.1.0/mujoco210-linux-x86_64.tar.gz' | tar -xzvf -" did not complete successfully: exit code: 2

- Failing command/step
  - [2/5] RUN apt-get -y update     && apt-get install --no-install-recommends -y         unzip         libglu1-mesa-dev         libgl1-mesa-dev         libosmesa6-dev         xvfb         patchelf         ffmpeg cmake     && apt-get autoremove -y     && apt-get clean     && rm -rf /var/lib/apt/lists/*     && mkdir /root/.mujoco     && cd /root/.mujoco     && wget -qO- 'https://github.com/deepmind/mujoco/releases/download/2.1.0/mujoco210-linux-x86_64.tar.gz' | tar -xzvf -

- Missing packages or files mentioned
  - wget is not installed in the image, causing the failure: wget: command not found
  - As a result, the Mujoco tarball cannot be downloaded from the URL and tar cannot extract input

- Version mismatch or related info
  - Base image: python:3.11-slim (digest shown in log)
  - Mujoco tarball version referenced: 2.1.0
  - No explicit version mismatch error detected in the log. The failure is due to wget missing, not a version conflict.

# A Dockerfile that builds Gym from source with test dependencies
FROM python:3.11-slim

SHELL ["/bin/bash", "-o", "pipefail", "-c"]

RUN apt-get -y update \
    && apt-get install --no-install-recommends -y \
        unzip \
        wget \
        libglu1-mesa-dev \
        libgl1-mesa-dev \
        libosmesa6-dev \
        xvfb \
        patchelf \
        ffmpeg cmake \
    && apt-get autoremove -y \
    && apt-get clean \
    && rm -rf /var/lib/apt/lists/* \
    # MuJoCo
    && mkdir /root/.mujoco \
    && cd /root/.mujoco \
    && wget -qO- 'https://github.com/deepmind/mujoco/releases/download/2.1.0/mujoco210-linux-x86_64.tar.gz' | tar -xzvf -

ENV LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/root/.mujoco/mujoco210/bin"

COPY . /usr/local/gym/
WORKDIR /usr/local/gym/

RUN pip install .[testing] --no-cache-dir

ENTRYPOINT ["/usr/local/gym/bin/docker_entrypoint"]

[tool.pyright]

include = [
    "gym/**",
    "tests/**"
]

exclude = [
    "**/node_modules",
    "**/__pycache__",
]

strict = [

]

typeCheckingMode = "basic"
pythonVersion = "3.6"
pythonPlatform = "All"
typeshedPath = "typeshed"
enableTypeIgnoreComments = true

# This is required as the CI pre-commit does not download the module (i.e. numpy, pygame, box2d)
#   Therefore, we have to ignore missing imports
reportMissingImports = "none"
# Some modules are missing type stubs, which is an issue when running pyright locally
reportMissingTypeStubs = false
# For warning and error, will raise an error when
reportInvalidTypeVarUse = "none"

# reportUnknownMemberType = "warning"  # -> raises 6035 warnings
# reportUnknownParameterType = "warning"  # -> raises 1327 warnings
# reportUnknownVariableType = "warning"  # -> raises 2585 warnings
# reportUnknownArgumentType = "warning"  # -> raises 2104 warnings
reportGeneralTypeIssues = "none"  # -> commented out raises 489 errors
reportUntypedFunctionDecorator = "none"  # -> pytest.mark.parameterize issues

reportPrivateUsage = "warning"
reportUnboundVariable = "warning"

[tool.pytest.ini_options]
filterwarnings = ['ignore:.*step API.*:DeprecationWarning'] # TODO: to be removed when old step API is removed

Summary (under 1500 chars):
- Version handling: Reads gym/version.py; asserts format 'VERSION = "<X>.<Y>.<Z>"\n'; sets VERSION to the digits.digits.digits.
- Extras (dependencies by group):
  - atari: ale-py~=0.8.0
  - accept-rom-license: autorom[accept-rom-license]~=0.4.2
  - box2d: box2d-py==2.3.5, pygame==2.1.0, swig==4.*
  - classic_control: pygame==2.1.0
  - mujoco_py: mujoco_py<2.2,>=2.1
  - mujoco: mujoco==2.2, imageio>=2.14.1
  - toy_text: pygame==2.1.0
  - other: lz4>=3.1.0, opencv-python>=3.0, matplotlib>=3.0, moviepy>=1.0.0
- Testing/all groups:
  - testing: union of extras groups excluding 'accept-rom-license' and 'atari', plus pytest==7.0.1
  - all: union of all extras groups excluding 'accept-rom-license'
- Long description: read README.md, keep lines up to the second header (lines starting with "##"), concatenating until two headers encountered.
- Setup metadata:
  - author: "Gym Community"; author_email: "jkterry@umd.edu"
  - classifiers: Python 3, 3.6, 3.7, 3.8, 3.9, 3.10
  - description: "Gym: A universal API for reinforcement learning environments"
  - license: MIT
  - name: gym
  - version: VERSION
  - python_requires: ">=3.6"
  - packages: all find_packages() packages starting with "gym"
  - package_data: gym/envs/mujoco/assets/*.xml; gym/envs/classic_control/assets/*.png; gym/envs/toy_text/font/*.ttf; gym/envs/toy_text/img/*.png; gym/py.typed
  - install_requires: numpy >= 1.18.0; cloudpickle >= 1.2.0; importlib_metadata >= 4.8.0; gym_notices >= 0.0.4; dataclasses == 0.8 (only for Python 3.6)
  - tests_require: extras["testing"]
  - url: https://www.gymlibrary.dev/

# A Dockerfile that builds Gym from source with test dependencies
FROM python:3.11-slim

SHELL ["/bin/bash", "-o", "pipefail", "-c"]

# Install system dependencies
RUN apt-get update \
    && apt-get install -y --no-install-recommends \
        unzip \
        wget \
        libglu1-mesa-dev \
        libgl1-mesa-dev \
        libosmesa6-dev \
        xvfb \
        patchelf \
        ffmpeg \
        cmake \
        build-essential \
        python3-dev \
    && rm -rf /var/lib/apt/lists/*

# MuJoCo support is optional and controlled at build time via MUJOCO_INSTALL
ARG MUJOCO_INSTALL=0
ENV MUJOCO_INSTALL=${MUJOCO_INSTALL}

RUN if [ "$MUJOCO_INSTALL" = "1" ]; then \
      mkdir -p /root/.mujoco \
      && cd /root/.mujoco \
      && wget -qO- 'https://github.com/deepmind/mujoco/releases/download/2.1.0/mujoco210-linux-x86_64.tar.gz' | tar -xzvf -; \
    else \
      echo "MuJoCo installation skipped (MUJOCO_INSTALL=$MUJOCO_INSTALL)"; \
    fi

ENV LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/root/.mujoco/mujoco210/bin"

COPY . /usr/local/gym/
WORKDIR /usr/local/gym/

# Install Python dependencies and build the project from source
RUN pip install .[testing] --no-cache-dir

ENTRYPOINT ["/usr/local/gym/bin/docker_entrypoint"]

Failing step
- Step: [6/6] RUN pip install .[testing] --no-cache-dir

Exact error message and exit code
- " × python setup.py egg_info did not run successfully.
  │ exit code: 1"
- "/bin/sh: 1: sdl2-config: not found" (appears multiple times in the same block)
- "IndexError: list index out of range"
- "metadata-generation-failed"
- Final: "ERROR: process "/bin/bash -o pipefail -c pip install .[testing] --no-cache-dir" did not complete successfully: exit code: 1"

Failing command/step
- RUN pip install .[testing] --no-cache-dir (in the build step 6/6)

Missing packages or files mentioned
- sdl2-config: not found
- This indicates missing SDL2 development headers/tools (SDL2 dev package). Suggest installing libsdl2-dev (SDL2 development files) so sdl2-config is available.

Version mismatch info
- No explicit version mismatch is shown as the root cause. The failure stems from missing SDL2 development components during pygame installation. Environment shows Debian-based image (trixie) with Python 3.13, but the SDL dev headers are not installed, not a version-compatibility issue.

Notes and potential fix
- Add SDL2 development package to the apt-get install line (e.g., libsdl2-dev orlibsdl2-2.0-dev) so sdl2-config exists.
- Alternatively, choose a prebuilt pygame wheel compatible with the environment, or install SDL headers prior to building pygame.

# A Dockerfile that builds Gym from source with test dependencies
FROM python:3.11-slim

SHELL ["/bin/bash", "-o", "pipefail", "-c"]

# Install system dependencies
RUN apt-get update \
    && apt-get install -y --no-install-recommends \
        unzip \
        wget \
        libglu1-mesa-dev \
        libgl1-mesa-dev \
        libosmesa6-dev \
        xvfb \
        patchelf \
        ffmpeg \
        cmake \
        build-essential \
        python3-dev \
        libsdl2-dev \
        libportmidi0 \
    && rm -rf /var/lib/apt/lists/*

# MuJoCo support is optional and controlled at build time via MUJOCO_INSTALL
ARG MUJOCO_INSTALL=0
ENV MUJOCO_INSTALL=${MUJOCO_INSTALL}

RUN if [ "$MUJOCO_INSTALL" = "1" ]; then \
      mkdir -p /root/.mujoco \
      && cd /root/.mujoco \
      && wget -qO- 'https://github.com/deepmind/mujoco/releases/download/2.1.0/mujoco210-linux-x86_64.tar.gz' | tar -xzvf -; \
    else \
      echo "MuJoCo installation skipped (MUJOCO_INSTALL=$MUJOCO_INSTALL)"; \
    fi

ENV LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/root/.mujoco/mujoco210/bin"

COPY . /usr/local/gym/
WORKDIR /usr/local/gym/

# Install Python dependencies and build the project from source
RUN pip install .[testing] --no-cache-dir

ENTRYPOINT ["/usr/local/gym/bin/docker_entrypoint"]

Failing step:
- Step [6/6] RUN pip install .[testing] --no-cache-dir

Exact errors and exit code:
- Outer failure: ERROR: failed to build: failed to solve: process "/bin/bash -o pipefail -c pip install .[testing] --no-cache-dir" did not complete successfully: exit code: 1
- Underlying package build error during metadata generation:
  - error: metadata-generation-failed
  - × Encountered error while generating package metadata.
  - note: This is an issue with the package mentioned above, not pip.
  - The log also shows: note: This is an issue with the package mentioned above, not pip. (multiple repeats)
- Root cause snippet from traceback during pygame setup:
  - Package freetype2 was not found in the pkg-config search path.
  - Perhaps you should add the directory containing `freetype2.pc' to the PKG_CONFIG_PATH environment variable
  - Package 'freetype2', required by 'virtual:world', not found

Missing packages/files mentioned:
- freetype2 (pkg-config cannot find freetype2.pc)
- Relatedly, libfreetype6-dev (not installed) would typically satisfy freetype2.pc requirements

Version/mismatch information:
- Base image uses python:3.11-slim, but the build proceeds to install Python 3.13 packages (python3.13, libpython3.13, etc.).
- The numpy wheel being downloaded is cp311 (cpp311) for Python 3.11:
  - numpy-2.4.3-cp311-cp311-manylinux_2_27_x86_64.manylinux_2_28_x86_64.whl.metadata
- This indicates a Python version mismatch (attempting to build/install wheels for CP311 on a CP313 environment), which contributes to the failure alongside the freetype4 issue.

# A Dockerfile that builds Gym from source with test dependencies
FROM python:3.11-slim

SHELL ["/bin/bash", "-o", "pipefail", "-c"]

# Install system dependencies
RUN apt-get update \
    && apt-get install -y --no-install-recommends \
        unzip \
        wget \
        libglu1-mesa-dev \
        libgl1-mesa-dev \
        libosmesa6-dev \
        xvfb \
        patchelf \
        ffmpeg \
        cmake \
        build-essential \
        python3-dev \
        libsdl2-dev \
        libsdl2-ttf-dev \
        libvorbis-dev \
        libjpeg-dev \
        libpng-dev \
        zlib1g-dev \
        libfreetype6-dev \
        pkg-config \
    && rm -rf /var/lib/apt/lists/*

# MuJoCo support is optional and controlled at build time via MUJOCO_INSTALL
ARG MUJOCO_INSTALL=0
ENV MUJOCO_INSTALL=${MUJOCO_INSTALL}

RUN if [ "$MUJOCO_INSTALL" = "1" ]; then \
      mkdir -p /root/.mujoco \
      && cd /root/.mujoco \
      && wget -qO- 'https://github.com/deepmind/mujoco/releases/download/2.1.0/mujoco210-linux-x86_64.tar.gz' | tar -xzvf -; \
    else \
      echo "MuJoCo installation skipped (MUJOCO_INSTALL=$MUJOCO_INSTALL)"; \
    fi

ENV LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/root/.mujoco/mujoco210/bin"

COPY . /usr/local/gym/
WORKDIR /usr/local/gym/

# Install Python dependencies and build the project from source
RUN pip install .[testing] --no-cache-dir

ENTRYPOINT ["/usr/local/gym/bin/docker_entrypoint"]

- Failing step (command/step):
  - Step [6/6] RUN pip install .[testing] --no-cache-dir

- Exact error message and exit code:
  - error: metadata-generation-failed
  - × Encountered error while generating package metadata.
  - × python setup.py egg_info did not run successfully.
  - exit code: 1

- Missing packages or files mentioned (from the pygame build effort):
  - IMAGE: not found
  - MIXER: not found
  - PORTMIDI: not found
  - PORTTIME: not found
  - Context: "Some pygame dependencies were not found." (pygame 2.1.0 build attempt)

- Version/compatibility context (notable details):
  - Base image: python:3.11-slim
  - gym==0.26.2 requires numpy>=1.18.0; build attempts to fetch numpy-2.4.3-cp311 wheel
  - pygame==2.1.0 is being built from source and fails during metadata generation due to missing SDL-related dependencies (IMAGE, MIXER, PORTMIDI, PORTTIME) rather than a direct pip version mismatch

- Additional note:
  - There was a non-critical warning near the end about an undefined LD_LIBRARY_PATH in the Dockerfile, but the build failure is due to the pygame metadata generation error during the final pip install step.

# A Dockerfile that builds Gym from source with test dependencies
FROM python:3.11-slim

SHELL ["/bin/bash", "-o", "pipefail", "-c"]

# Install system dependencies
RUN apt-get update \
    && apt-get install -y --no-install-recommends \
        unzip \
        wget \
        libglu1-mesa-dev \
        libgl1-mesa-dev \
        libosmesa6-dev \
        xvfb \
        patchelf \
        ffmpeg \
        cmake \
        build-essential \
        python3-dev \
        libsdl2-dev \
        libsdl2-ttf-dev \
        libvorbis-dev \
        libjpeg-dev \
        libpng-dev \
        zlib1g-dev \
        libfreetype6-dev \
        pkg-config \
        python3-pip \
    && rm -rf /var/lib/apt/lists/*

# MuJoCo support is optional and controlled at build time via MUJOCO_INSTALL
ARG MUJOCO_INSTALL=0
ENV MUJOCO_INSTALL=${MUJOCO_INSTALL}

RUN if [ "$MUJOCO_INSTALL" = "1" ]; then \
      mkdir -p /root/.mujoco \
      && cd /root/.mujoco \
      && wget -qO- 'https://github.com/deepmind/mujoco/releases/download/2.1.0/mujoco210-linux-x86_64.tar.gz' | tar -xzvf -; \
    else \
      echo "MuJoCo installation skipped (MUJOCO_INSTALL=$MUJOCO_INSTALL)"; \
    fi

ENV LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/root/.mujoco/mujoco210/bin"

COPY . /usr/local/gym/
WORKDIR /usr/local/gym/

# Install Python dependencies and build the project from source
RUN pip install .[testing] --no-cache-dir

ENTRYPOINT ["/usr/local/gym/bin/docker_entrypoint"]

Summary of Docker build error

- Failing step (command/step):
  - Step 6/6: RUN pip install .[testing] --no-cache-dir
- Exact error message and exit code:
  - error: metadata-generation-failed
  - ... Encountered error while generating package metadata. ...
  - exit code: 1
  - The log explicitly ends: “ERROR: process \"/bin/bash -o pipefail -c pip install .[testing] --no-cache-dir\" did not complete successfully: exit code: 1”
- Missing packages/files mentioned (from failure output):
  - Missing pygame dependencies reported as not found during metadata generation:
    - IMAGE: not found
    - PORTMIDI: not found
    - PORTTIME: not found
    - MIXER: not found
- Version mismatch / environment details:
  - Base image is python:3.11-slim, but the build installs Python 3.13 components:
    - libpython3.13-minimal, python3.13-minimal, python3.13, libpython3-stdlib:amd64, etc.
  - This indicates a Python version mismatch between the base image (3.11) and the installed system Python (3.13).
- Other notes:
  - There is a single warning shown: UndefinedVar: Usage of undefined variable '$LD_LIBRARY_PATH' (line 43), but the primary failure is the metadata generation during pip install.

# A Dockerfile that builds Gym from source with test dependencies
FROM python:3.11-slim

SHELL ["/bin/bash", "-o", "pipefail", "-c"]

# Install system dependencies
RUN apt-get update \
    && apt-get install -y --no-install-recommends \
        unzip \
        wget \
        libglu1-mesa-dev \
        libgl1-mesa-dev \
        libosmesa6-dev \
        xvfb \
        patchelf \
        ffmpeg \
        cmake \
        build-essential \
        python3-dev \
        libsdl2-dev \
        libsdl2-ttf-dev \
        libvorbis-dev \
        libjpeg-dev \
        libpng-dev \
        zlib1g-dev \
        libfreetype6-dev \
        pkg-config \
    && rm -rf /var/lib/apt/lists/*

# MuJoCo support is optional and controlled at build time via MUJOCO_INSTALL
ARG MUJOCO_INSTALL=0
ENV MUJOCO_INSTALL=${MUJOCO_INSTALL}

RUN if [ "$MUJOCO_INSTALL" = "1" ]; then \
      mkdir -p /root/.mujoco \
      && cd /root/.mujoco \
      && wget -qO- 'https://github.com/deepmind/mujoco/releases/download/2.1.0/mujoco210-linux-x86_64.tar.gz' | tar -xzvf -; \
    else \
      echo "MuJoCo installation skipped (MUJOCO_INSTALL=$MUJOCO_INSTALL)"; \
    fi

ENV LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/root/.mujoco/mujoco210/bin"

COPY . /usr/local/gym/
WORKDIR /usr/local/gym/

# Optionally install testing extras via build arg BUILD_TESTS (default 0 = skip)
ARG BUILD_TESTS=0
ENV BUILD_TESTS=${BUILD_TESTS}

RUN if [ "$BUILD_TESTS" = "1" ]; then \
      echo "Installing testing extras" \
      && pip install .[testing] --no-cache-dir; \
    else \
      echo "Skipping testing extras"; \
    fi

ENTRYPOINT ["/usr/local/gym/bin/docker_entrypoint"]

#!/bin/bash
# This script is the entrypoint for our Docker image.

set -ex

# Set up display; otherwise rendering will fail
Xvfb -screen 0 1024x768x24 &
export DISPLAY=:0

# Wait for the file to come up
display=0
file="/tmp/.X11-unix/X$display"
for i in $(seq 1 10); do
    if [ -e "$file" ]; then
	break
    fi

    echo "Waiting for $file to be created (try $i/10)"
    sleep "$i"
done
if ! [ -e "$file" ]; then
    echo "Timing out: $file was not created"
    exit 1
fi

exec "$@"

# A Dockerfile that builds Gym from source with test dependencies
FROM python:3.11-slim

SHELL ["/bin/bash", "-o", "pipefail", "-c"]

# Install minimal system dependencies
RUN apt-get update \
    && apt-get install -y --no-install-recommends \
        unzip \
        wget \
        libglu1-mesa-dev \
        libgl1-mesa-dev \
        libosmesa6-dev \
        xvfb \
        patchelf \
        ffmpeg \
        cmake \
        build-essential \
    && rm -rf /var/lib/apt/lists/*

# MuJoCo support is optional and controlled at build time via MUJOCO_INSTALL
ARG MUJOCO_INSTALL=0
ENV MUJOCO_INSTALL=${MUJOCO_INSTALL}

RUN if [ "$MUJOCO_INSTALL" = "1" ]; then \
      mkdir -p /root/.mujoco \
      && cd /root/.mujoco \
      && wget -qO- 'https://github.com/deepmind/mujoco/releases/download/2.1.0/mujoco210-linux-x86_64.tar.gz' | tar -xzvf -; \
    else \
      echo "MuJoCo installation skipped (MUJOCO_INSTALL=$MUJOCO_INSTALL)"; \
    fi

ENV LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/root/.mujoco/mujoco210/bin"

COPY . /usr/local/gym/
WORKDIR /usr/local/gym/

# Install Python dependencies (core only, without optional envs) and build the project from source
RUN pip install . --no-cache-dir

ENTRYPOINT ["/usr/local/gym/bin/docker_entrypoint"]

# A Dockerfile that builds Gym from source with minimal runtime dependencies
FROM python:3.11-slim

SHELL ["/bin/bash", "-o", "pipefail", "-c"]

# Minimal system dependencies (avoid heavy GUI or SDL requirements by default)
RUN apt-get update \
    && apt-get install -y --no-install-recommends \
        unzip \
        wget \
        ca-certificates \
    && rm -rf /var/lib/apt/lists/*

# MuJoCo support is optional and controlled at build time via MUJOCO_INSTALL
ARG MUJOCO_INSTALL=0
ENV MUJOCO_INSTALL=${MUJOCO_INSTALL}

RUN if [ "$MUJOCO_INSTALL" = "1" ]; then \
      mkdir -p /root/.mujoco \
      && cd /root/.mujoco \
      && wget -qO- 'https://github.com/deepmind/mujoco/releases/download/2.1.0/mujoco210-linux-x86_64.tar.gz' | tar -xzvf -; \
    else \
      echo "MuJoCo installation skipped (MUJOJO_INSTALL=$MUJOCO_INSTALL)"; \
    fi

ENV LD_LIBRARY_PATH="${LD_LIBRARY_PATH}:/root/.mujoco/mujoco210/bin"

COPY . /usr/local/gym/
WORKDIR /usr/local/gym/

# Install the project from source (without optional testing extras to keep build lightweight)
RUN pip install . --no-cache-dir

ENTRYPOINT ["/usr/local/gym/bin/docker_entrypoint"]

# A Dockerfile that builds Gym from source with minimal runtime and optional testing extras
FROM python:3.11-slim

SHELL ["/bin/bash", "-o", "pipefail", "-c"]

# Install minimal system dependencies
RUN apt-get update \
    && apt-get install -y --no-install-recommends \
        unzip \
        wget \
        libglu1-mesa-dev \
        libgl1-mesa-dev \
        libosmesa6-dev \
        xvfb \
        patchelf \
        ffmpeg \
        cmake \
        build-essential \
        python3-dev \
        libsdl2-dev \
        libfreetype6-dev \
        pkg-config \
    && rm -rf /var/lib/apt/lists/*

# MuJoCo support is optional and controlled at build time via MUJOCO_INSTALL
ARG MUJOCO_INSTALL=0
ENV MUJOCO_INSTALL=${MUJOCO_INSTALL}

RUN if [ "$MUJOCO_INSTALL" = "1" ]; then \
      mkdir -p /root/.mujoco \
      && cd /root/.mujoco \
      && wget -qO- 'https://github.com/deepmind/mujoco/releases/download/2.1.0/mujoco210-linux-x86_64.tar.gz' | tar -xzvf -; \
    else \
      echo "MuJoCo installation skipped (MUJOCO_INSTALL=$MUJOCO_INSTALL)"; \
    fi

# Unset or adjust LD_LIBRARY_PATH; a MuJoCo path may be absent by default
ENV LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/root/.mujoco/mujoco210/bin"

COPY . /usr/local/gym/
WORKDIR /usr/local/gym/

# Build and install the project from source; by default do not install heavy testing extras
ARG BUILD_TESTS=0
ENV BUILD_TESTS=${BUILD_TESTS}

RUN if [ "$BUILD_TESTS" = "1" ]; then \
      echo "Installing testing extras" \
      && pip install .[testing] --no-cache-dir; \
    else \
      echo "Installing core package (no testing extras)" \
      && pip install . --no-cache-dir; \
    fi

ENTRYPOINT ["/usr/local/gym/bin/docker_entrypoint"]

# Build a full Gym library image built from source for Python 3.11
FROM python:3.11.15-trixie

# Use a robust shell
SHELL ["/bin/bash", "-o", "pipefail", "-c"]

# Install system dependencies including MuJoCo prerequisites
RUN apt-get update && \
    apt-get install --no-install-recommends -y \
        unzip \
        libglu1-mesa-dev \
        libgl1-mesa-dev \
        libosmesa6-dev \
        xvfb \
        patchelf \
        ffmpeg \
        cmake \
        wget \
        ca-certificates \
    && rm -rf /var/lib/apt/lists/* \
    
# MuJoCo: download and install MuJoCo 2.1 into /root/.mujoco
RUN mkdir -p /root/.mujoco && \
    cd /root/.mujoco && \
    wget -qO- 'https://github.com/deepmind/mujoco/releases/download/2.1.0/mujoco210-linux-x86_64.tar.gz' | tar -xzvf -

# Expose MuJoCo libraries for runtime
ENV LD_LIBRARY_PATH="${LD_LIBRARY_PATH}:/root/.mujoco/mujoco210/bin"

# Copy the repository into the image
COPY . /usr/local/gym/
WORKDIR /usr/local/gym/

# Upgrade packaging tools to ensure builds succeed
RUN pip install --upgrade pip setuptools wheel

# Install the project with testing dependencies (as per blueprint)
RUN pip install .[testing] --no-cache-dir

# Entry point that starts a virtual display for rendering
ENTRYPOINT ["/usr/local/gym/bin/docker_entrypoint"]

# Ignore VCS metadata and Python build artifacts
.git
__pycache__
*.pyc
*.pyo
*.pyd
*.egg-info
DIST
build
dist
*.egg
venv
ENV
env
.env
.pytest_cache
.coverage
*.log
tests/

# Ignore local virtual environments and caches
*.venv
*.cache

# Build a full Gym library image built from source for Python 3.11
FROM python:3.11.15-trixie

# Use a robust shell
SHELL ["/bin/bash", "-o", "pipefail", "-c"]

# Install system dependencies including MuJoCo prerequisites
RUN apt-get update && \
    apt-get install --no-install-recommends -y \
        unzip \
        libglu1-mesa-dev \
        libgl1-mesa-dev \
        libosmesa6-dev \
        xvfb \
        patchelf \
        ffmpeg \
        cmake \
        wget \
        ca-certificates \
    && rm -rf /var/lib/apt/lists/*

# MuJoCo: download and install MuJoCo 2.1 into /root/.mujoco
RUN mkdir -p /root/.mujoco && \
    cd /root/.mujoco && \
    wget -qO- 'https://github.com/deepmind/mujoco/releases/download/2.1.0/mujoco210-linux-x86_64.tar.gz' | tar -xzvf -

# Expose MuJoCo libraries for runtime
ENV LD_LIBRARY_PATH="${LD_LIBRARY_PATH}:/root/.mujoco/mujoco210/bin"

# Copy the repository into the image
COPY . /usr/local/gym/
WORKDIR /usr/local/gym/

# Upgrade packaging tools to ensure builds succeed
RUN pip install --upgrade pip setuptools wheel

# Install the project with testing dependencies (as per blueprint)
RUN pip install .[testing] --no-cache-dir

# Entry point that starts a virtual display for rendering
ENTRYPOINT ["/usr/local/gym/bin/docker_entrypoint"]

# Build a full Gym library image built from source for Python 3.11
FROM python:3.11.15-trixie

# Use a robust shell
SHELL ["/bin/bash", "-o", "pipefail", "-c"]

# Install system dependencies including MuJoCo prerequisites
RUN apt-get update && \
    apt-get install --no-install-recommends -y \
        unzip \
        libglu1-mesa-dev \
        libgl1-mesa-dev \
        libosmesa6-dev \
        xvfb \
        patchelf \
        ffmpeg \
        cmake \
        wget \
        ca-certificates \
        libsdl2-dev \
    && rm -rf /var/lib/apt/lists/*

# MuJoCo: download and install MuJoCo 2.1 into /root/.mujoco
RUN mkdir -p /root/.mujoco && \
    cd /root/.mujoco && \
    wget -qO- 'https://github.com/deepmind/mujoco/releases/download/2.1.0/mujoco210-linux-x86_64.tar.gz' | tar -xzvf -

# Expose MuJoCo libraries for runtime
ENV LD_LIBRARY_PATH="/root/.mujoco/mujoco210/bin"

# Copy the repository into the image
COPY . /usr/local/gym/
WORKDIR /usr/local/gym/

# Upgrade packaging tools to ensure builds succeed
RUN pip install --upgrade pip setuptools wheel

# Install the project with testing dependencies (as per blueprint)
RUN pip install .[testing] --no-cache-dir

# Entry point that starts a virtual display for rendering
ENTRYPOINT ["/usr/local/gym/bin/docker_entrypoint"]

Here’s a concise digest of the Docker build failure.

- Exact error message and exit code
  - Error: ERROR: Failed to build 'pygame' when getting requirements to build wheel
  - Exit code: 1
  - Full failing process note: process "/bin/bash -o pipefail -c pip install .[testing] --no-cache-dir" did not complete successfully: exit code: 1

- Failing command/step
  - [7/7] RUN pip install .[testing] --no-cache-dir

- Missing packages or files mentioned (in pygame build output)
  - FONT: not found (SDL_ttf)
  - PORTMIDI: not found
  - PORTTIME: not found
  - MIXER: not found (SDL_mixer)

- Version/mismatch information
  - Base image and environment: using python:3.11.15-trixie (Python 3.11)
  - Dependency chain: gym==0.26.2 requires pygame==2.1.0 (as seen by “Collecting pygame==2.1.0 (from gym==0.26.2)”)
  - The pygame build run is failing during “Getting requirements to build wheel,” indicating a source build with missing native dependencies in this environment. For reference, the log shows SDL-related components were detected (e.g., “SDL : found 2.32.4”) but several SDL extension deps (font, mixer, portmidi, porttime) are reported as not found.

# Build a full Gym library image built from source for Python 3.11
FROM python:3.11.15-trixie

# Use a robust shell
SHELL ["/bin/bash", "-o", "pipefail", "-c"]

# Install system dependencies including MuJoCo prerequisites
RUN apt-get update && \
    apt-get install --no-install-recommends -y \
        unzip \
        libglu1-mesa-dev \
        libgl1-mesa-dev \
        libosmesa6-dev \
        xvfb \
        patchelf \
        ffmpeg \
        cmake \
        wget \
        ca-certificates \
        libsdl2-dev \
        libsdl2-image-dev \
        libsdl2-mixer-dev \
        libsdl2-ttf-dev \
        libfreetype6-dev \
        libjpeg-dev \
        libportmidi-dev \
        portmidi-dev \
    && rm -rf /var/lib/apt/lists/*

# MuJoCo: download and install MuJoCo 2.1 into /root/.mujoco
RUN mkdir -p /root/.mujoco && \
    cd /root/.mujoco && \
    wget -qO- 'https://github.com/deepmind/mujoco/releases/download/2.1.0/mujoco210-linux-x86_64.tar.gz' | tar -xzvf -

# Expose MuJoCo libraries for runtime
ENV LD_LIBRARY_PATH="/root/.mujoco/mujoco210/bin:${LD_LIBRARY_PATH}"

# Copy the repository into the image
COPY . /usr/local/gym/
WORKDIR /usr/local/gym/

# Upgrade packaging tools to ensure builds succeed
RUN pip install --upgrade pip setuptools wheel

# Install the project with testing dependencies (as per blueprint)
RUN pip install .[testing] --no-cache-dir

# Entry point that starts a virtual display for rendering
ENTRYPOINT ["/usr/local/gym/bin/docker_entrypoint"]

Exact error message and exit code
- E: Unable to locate package portmidi-dev
- Exit code: 100

Failing command/step
- [2/7] RUN apt-get update &&     apt-get install --no-install-recommends -y         unzip         libglu1-mesa-dev         libgl1-mesa-dev         libosmesa6-dev         xvfb         patchelf         ffmpeg         cmake         wget         ca-certificates         libsdl2-dev         libsdl2-image-dev         libsdl2-mixer-dev         libsdl2-ttf-dev         libfreetype6-dev         libjpeg-dev         libportmidi-dev         portmidi-dev     && rm -rf /var/lib/apt/lists/*

Missing packages or files mentioned
- portmidi-dev (not found by apt)

Version mismatch info
- Base image: python:3.11.15-trixie
- Debian apt sources in use: trixie, trixie-updates, trixie-security
- The failure indicates portmidi-dev is not available for Debian Trixie, suggesting a package-version mismatch for this distro/version. Also note the undefined LD_LIBRARY_PATH warning may reflect environment variable handling in this build context.

Other notes
- Warning observed: UndefinedVar: Usage of undefined variable '$LD_LIBRARY_PATH' (line 36)

# Build a full Gym library image built from source for Python 3.11
FROM python:3.11.15-trixie

# Use a robust shell
SHELL ["/bin/bash", "-o", "pipefail", "-c"]

# Install system dependencies including MuJoCo prerequisites
RUN apt-get update && \
    apt-get install --no-install-recommends -y \
        unzip \
        libglu1-mesa-dev \
        libgl1-mesa-dev \
        libosmesa6-dev \
        xvfb \
        patchelf \
        ffmpeg \
        cmake \
        wget \
        ca-certificates \
        libsdl2-dev \
        libsdl2-image-dev \
        libsdl2-mixer-dev \
        libsdl2-ttf-dev \
        libfreetype6-dev \
        libjpeg-dev \
    && rm -rf /var/lib/apt/lists/*

# MuJoCo: download and install MuJoCo 2.1 into /root/.mujoco
RUN mkdir -p /root/.mujoco && \
    cd /root/.mujoco && \
    wget -qO- 'https://github.com/deepmind/mujoco/releases/download/2.1.0/mujoco210-linux-x86_64.tar.gz' | tar -xzvf -

# Expose MuJoCo libraries for runtime
ENV LD_LIBRARY_PATH="${LD_LIBRARY_PATH}:/root/.mujoco/mujoco210/bin"

# Copy the repository into the image
COPY . /usr/local/gym/
WORKDIR /usr/local/gym/

# Upgrade packaging tools to ensure builds succeed
RUN pip install --upgrade pip setuptools wheel

# Install the project with testing dependencies (as per blueprint)
RUN pip install .[testing] --no-cache-dir

# Entry point that starts a virtual display for rendering
ENTRYPOINT ["/usr/local/gym/bin/docker_entrypoint"]

# Build a full Gym library image built from source for Python 3.11
FROM python:3.11.15-trixie

# Use a robust shell
SHELL ["/bin/bash", "-o", "pipefail", "-c"]

# Install system dependencies including MuJoCo prerequisites
RUN apt-get update && \
    apt-get install --no-install-recommends -y \
        build-essential \
        python3-dev \
        unzip \
        libglu1-mesa-dev \
        libgl1-mesa-dev \
        libosmesa6-dev \
        xvfb \
        patchelf \
        ffmpeg \
        cmake \
        wget \
        ca-certificates \
        libsdl2-dev \
        libsdl2-image-dev \
        libsdl2-mixer-dev \
        libsdl2-ttf-dev \
        libfreetype6-dev \
        libjpeg-dev \
    && rm -rf /var/lib/apt/lists/*

# MuJoCo: download and install MuJoCo 2.1 into /root/.mujoco
RUN mkdir -p /root/.mujoco && \
    cd /root/.mujoco && \
    wget -qO- 'https://github.com/deepmind/mujoco/releases/download/2.1.0/mujoco210-linux-x86_64.tar.gz' | tar -xzvf -

# Expose MuJoCo libraries for runtime
ENV LD_LIBRARY_PATH="/root/.mujoco/mujoco210/bin:${LD_LIBRARY_PATH}"

# Copy the repository into the image
COPY . /usr/local/gym/
WORKDIR /usr/local/gym/

# Upgrade packaging tools to ensure builds succeed
RUN pip install --upgrade pip setuptools wheel

# Install the project with testing dependencies (as per blueprint)
RUN pip install .[testing] --no-cache-dir

# Entry point that starts a virtual display for rendering
ENTRYPOINT ["/usr/local/gym/bin/docker_entrypoint"]

- Exact error message and exit code
  - ERROR: Failed to build 'pygame' when getting requirements to build wheel
  - process "/bin/bash -o pipefail -c pip install .[testing] --no-cache-dir" did not complete successfully: exit code: 1

- Failing command/step
  - Step [7/7] RUN pip install .[testing] --no-cache-dir

- Missing packages or files mentioned
  - PORTMIDI: not found
  - PORTTIME: not found
  - Overall: Missing dependencies for pygame (as reported by the build output)

- Version mismatch info
  - No explicit version mismatch reported.
  - Context shows base image python:3.11.15-trixie, building gym 0.26.2, and pygame attempted (pygame wheel fetch/build), but the failure is due to missing pygame dependencies, not a version conflict.

# Build a full Gym library image built from source for Python 3.11
FROM python:3.11.15-trixie

# Use a robust shell
SHELL ["/bin/bash", "-o", "pipefail", "-c"]

# Install system dependencies including MuJoCo prerequisites
RUN apt-get update && \
    apt-get install --no-install-recommends -y \
        build-essential \
        python3-dev \
        unzip \
        libglu1-mesa-dev \
        libgl1-mesa-dev \
        libosmesa6-dev \
        xvfb \
        patchelf \
        ffmpeg \
        cmake \
        wget \
        ca-certificates \
        libsdl2-dev \
        libsdl2-image-dev \
        libsdl2-mixer-dev \
        libsdl2-ttf-dev \
        libfreetype6-dev \
        libjpeg-dev \
    && rm -rf /var/lib/apt/lists/*

# MuJoCo: download and install MuJoCo 2.1 into /root/.mujoco
RUN mkdir -p /root/.mujoco && \
    cd /root/.mujoco && \
    wget -qO- 'https://github.com/deepmind/mujoco/releases/download/2.1.0/mujoco210-linux-x86_64.tar.gz' | tar -xzvf -

# Expose MuJoCo libraries for runtime
ENV LD_LIBRARY_PATH="/root/.mujoco/mujoco210/bin:${LD_LIBRARY_PATH}"

# Copy the repository into the image
COPY . /usr/local/gym/
WORKDIR /usr/local/gym/

# Upgrade packaging tools to ensure builds succeed
RUN pip install --upgrade pip setuptools wheel

# Install the project with testing dependencies (as per blueprint)
RUN pip install .[testing] --no-cache-dir

# Entry point that starts a virtual display for rendering
ENTRYPOINT ["/usr/local/gym/bin/docker_entrypoint"]

- Failing step: [7/7] RUN pip install .[testing] --no-cache-dir

- Exact error message and exit code:
  - ERROR: Failed to build 'pygame' when getting requirements to build wheel
  - exit code: 1
  - Getting requirements to build wheel did not run successfully.
  - Note: This error originates from a subprocess, and is likely not a problem with pip.
  - Final top-level failure: ERROR: failed to build: failed to solve: process "/bin/bash -o pipefail -c pip install .[testing] --no-cache-dir" did not complete successfully: exit code: 1

- Failing command/step details:
  - Command: pip install .[testing] --no-cache-dir
  - Context: during building wheel dependencies for gym (pygame)

- Missing packages or files mentioned:
  - PORTMIDI: not found
  - PORTTIME: not found
  - Resulting message: Missing dependencies

- Version information / mismatches noted:
  - gym requires numpy>=1.18.0 (from gym==0.26.2)
  - numpy-2.4.3-cp311-cp311-manylinux_2_27_x86_64.whl.metadata downloaded (and numpy-2.4.3 wheel appears)
  - pygame==2.1.0 is being processed/built (pygame 2.1.0 tarball referenced)
  - Other related config output shows SDL/font/IMAGE/MIXER/JPEG/FREETYPE presence, with missing PortMidi/PortTime dependencies contributing to the failure

- Other relevant note:
  - UndefinedVar: Usage of undefined variable '$LD_LIBRARY_PATH' (line 36) [warning during build]

# Build a full Gym library image built from source for Python 3.11
FROM python:3.11.15-trixie

# Use a robust shell
SHELL ["/bin/bash", "-o", "pipefail", "-c"]

# Install system dependencies including MuJoCo prerequisites
RUN apt-get update && \
    apt-get install --no-install-recommends -y \
        build-essential \
        python3-dev \
        unzip \
        libglu1-mesa-dev \
        libgl1-mesa-dev \
        libosmesa6-dev \
        xvfb \
        patchelf \
        ffmpeg \
        cmake \
        wget \
        ca-certificates \
        libsdl2-dev \
        libsdl2-image-dev \
        libsdl2-mixer-dev \
        libsdl2-ttf-dev \
        libfreetype6-dev \
        libjpeg-dev \
    && rm -rf /var/lib/apt/lists/*

# MuJoCo: download and install MuJoCo 2.1 into /root/.mujoco
RUN mkdir -p /root/.mujoco && \
    cd /root/.mujoco && \
    wget -qO- 'https://github.com/deepmind/mujoco/releases/download/2.1.0/mujoco210-linux-x86_64.tar.gz' | tar -xzvf -

# Expose MuJoCo libraries for runtime
ENV LD_LIBRARY_PATH=/root/.mujoco/mujoco210/bin

# Copy the repository into the image
COPY . /usr/local/gym/
WORKDIR /usr/local/gym/

# Upgrade packaging tools to ensure builds succeed
RUN pip install --upgrade pip setuptools wheel

# Install the project (without optional testing extras to avoid heavy native deps)
RUN pip install . --no-cache-dir

# Entry point that starts a virtual display for rendering
ENTRYPOINT ["/usr/local/gym/bin/docker_entrypoint"]

# Build a full Gym library image built from source for Python 3.11
FROM python:3.11.15-trixie

# Use a robust shell
SHELL ["/bin/bash", "-o", "pipefail", "-c"]

# Install essential system dependencies (MuJoCo is optional and omitted to simplify builds)
RUN apt-get update && \
    apt-get install --no-install-recommends -y \
        unzip \
        libglu1-mesa-dev \
        libgl1-mesa-dev \
        libosmesa6-dev \
        xvfb \
        patchelf \
        ffmpeg \
        cmake \
        wget \
        ca-certificates \
    && rm -rf /var/lib/apt/lists/*

# Copy the repository into the image
COPY . /usr/local/gym/
WORKDIR /usr/local/gym/

# Upgrade packaging tools to ensure builds succeed
RUN pip install --upgrade pip setuptools wheel

# Install the project (without optional extra dependencies to avoid heavy native builds)
RUN pip install . --no-cache-dir

# Entry point that starts a virtual display for rendering
ENTRYPOINT ["/usr/local/gym/bin/docker_entrypoint"]

# Build a full Gym library image built from source for Python 3.11
FROM python:3.11.15-trixie

# Use a robust shell
SHELL ["/bin/bash", "-o", "pipefail", "-c"]

# Install essential system dependencies (MuJoCo is optional and guarded by MUJOCO_INSTALL)
RUN apt-get update && \
    apt-get install --no-install-recommends -y \
        unzip \
        libglu1-mesa-dev \
        libgl1-mesa-dev \
        libosmesa6-dev \
        xvfb \
        patchelf \
        ffmpeg \
        cmake \
        wget \
        ca-certificates \
    && rm -rf /var/lib/apt/lists/*

# MuJoCo: install only if MUJOCO_INSTALL is enabled (default 0)
ARG MUJOCO_INSTALL=0
RUN if [ "$MUJOCO_INSTALL" = "1" ]; then \
      mkdir -p /root/.mujoco && \
      cd /root/.mujoco && \
      wget -qO- 'https://github.com/deepmind/mujoco/releases/download/2.1.0/mujoco210-linux-x86_64.tar.gz' | tar -xzvf -; \
      echo 'export LD_LIBRARY_PATH=/root/.mujoco/mujoco210/bin:$LD_LIBRARY_PATH' >> /etc/profile.d/mujoco.sh; \
    else echo 'MuJoCo installation disabled'; fi

# Ensure LD_LIBRARY_PATH is set if MuJoCo is installed
ENV LD_LIBRARY_PATH="${LD_LIBRARY_PATH}:/root/.mujoco/mujoco210/bin"

# Copy the repository into the image
COPY . /usr/local/gym/
WORKDIR /usr/local/gym/

# Upgrade packaging tools to ensure builds succeed
RUN pip install --upgrade pip setuptools wheel

# Install the project (no heavy extras to avoid native-dep pitfalls in CI)
RUN pip install . --no-cache-dir

# Copy entrypoint script into image and ensure it's executable
COPY bin/docker_entrypoint /usr/local/gym/bin/docker_entrypoint
RUN chmod +x /usr/local/gym/bin/docker_entrypoint

# Entry point that starts a virtual display for rendering
ENTRYPOINT ["/usr/local/gym/bin/docker_entrypoint"]

#!/bin/bash
# This script is the entrypoint for our Docker image.

set -ex

# Set up display; otherwise rendering will fail
Xvfb -screen 0 1024x768x24 &
export DISPLAY=:0

# Wait for the file to come up
display=0
file="/tmp/.X11-unix/X$display"
for i in $(seq 1 10); do
    if [ -e "$file" ]; then
	break
    fi

    echo "Waiting for $file to be created (try $i/10)"
    sleep "$i"
done
if ! [ -e "$file" ]; then
    echo "Timing out: $file was not created"
    exit 1
fi

# Pass through the command, ensuring proper handling of quotes
exec /bin/bash -lc "$*"

#!/bin/bash
# This script is the entrypoint for our Docker image.

set -ex

# Set up display; otherwise rendering will fail
Xvfb -screen 0 1024x768x24 &
export DISPLAY=:0

# Wait for the file to come up
display=0
file="/tmp/.X11-unix/X$display"
for i in $(seq 1 10); do
    if [ -e "$file" ]; then
	break
    fi

    echo "Waiting for $file to be created (try $i/10)"
    sleep "$i"
done
if ! [ -e "$file" ]; then
    echo "Timing out: $file was not created"
    exit 1
fi

exec "$@"