[Python-pip] I can't install toga #1780

Heus-Sueh · 2024-02-04T02:45:56Z

What happened?

If I try to install the toga library through pip inside .venv it gives me this error:

❯ pip install toga
Collecting toga
  Using cached toga-0.4.1-py3-none-any.whl.metadata (4.0 kB)
Collecting toga-gtk==0.4.1 (from toga)
  Using cached toga_gtk-0.4.1-py3-none-any.whl.metadata (3.0 kB)
Collecting gbulb>=0.5.3 (from toga-gtk==0.4.1->toga)
  Using cached gbulb-0.6.4-py3-none-any.whl (17 kB)
Requirement already satisfied: pycairo>=1.17.0 in /nix/store/67mw87bh762ismbnbd239xw59yv76p9k-python3.12-pycairo-1.25.1/lib/python3.12/site-packages (from toga-gtk==0.4.1->toga) (1.25.1)
Collecting pygobject>=3.46.0 (from toga-gtk==0.4.1->toga)
  Using cached PyGObject-3.46.0.tar.gz (723 kB)
  Installing build dependencies ... error
  error: subprocess-exited-with-error
  
  × pip subprocess to install build dependencies did not run successfully.
  │ exit code: 1
  ╰─> [45 lines of output]
      Collecting setuptools
        Using cached setuptools-69.0.3-py3-none-any.whl.metadata (6.3 kB)
      Collecting wheel
        Using cached wheel-0.42.0-py3-none-any.whl.metadata (2.2 kB)
      Collecting pycairo
        Using cached pycairo-1.25.1.tar.gz (347 kB)
        Installing build dependencies: started
        Installing build dependencies: finished with status 'done'
        Getting requirements to build wheel: started
        Getting requirements to build wheel: finished with status 'done'
        Installing backend dependencies: started
        Installing backend dependencies: finished with status 'done'
        Preparing metadata (pyproject.toml): started
        Preparing metadata (pyproject.toml): finished with status 'done'
      Using cached setuptools-69.0.3-py3-none-any.whl (819 kB)
      Using cached wheel-0.42.0-py3-none-any.whl (65 kB)
      Building wheels for collected packages: pycairo
        Building wheel for pycairo (pyproject.toml): started
        Building wheel for pycairo (pyproject.toml): finished with status 'error'
        error: subprocess-exited-with-error
      
        × Building wheel for pycairo (pyproject.toml) did not run successfully.
        │ exit code: 1
        ╰─> [15 lines of output]
            running bdist_wheel
            running build
            running build_py
            creating build
            creating build/lib.linux-x86_64-cpython-312
            creating build/lib.linux-x86_64-cpython-312/cairo
            copying cairo/__init__.py -> build/lib.linux-x86_64-cpython-312/cairo
            copying cairo/__init__.pyi -> build/lib.linux-x86_64-cpython-312/cairo
            copying cairo/py.typed -> build/lib.linux-x86_64-cpython-312/cairo
            running build_ext
            Package cairo was not found in the pkg-config search path.
            Perhaps you should add the directory containing `cairo.pc'
            to the PKG_CONFIG_PATH environment variable
            Package 'cairo', required by 'virtual:world', not found
            Command '['pkg-config', '--print-errors', '--exists', 'cairo >= 1.15.10']' returned non-zero exit status 1.
            [end of output]
      
        note: This error originates from a subprocess, and is likely not a problem with pip.
        ERROR: Failed building wheel for pycairo
      Failed to build pycairo
      ERROR: Could not build wheels for pycairo, which is required to install pyproject.toml-based projects
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
error: subprocess-exited-with-error

× pip subprocess to install build dependencies did not run successfully.
│ exit code: 1
╰─> See above for output.

note: This error originates from a subprocess, and is likely not a problem with pip.
(devbox)

installing cairo or pycairo doesn't solve it

Steps to reproduce

Create a devbox with the latest version of python and try to install toga through .venv

Command

add, shell

devbox.json

{
  "packages": [
    "pipx@latest",
    "python@latest",
    "cairo@latest",
    "python312Packages.pycairo@latest"
  ],
  "shell": {
    "init_hook": [
      ". $VENV_DIR/bin/activate"
    ],
    "scripts": {
      "test": [
        "echo \"Error: no test specified\" && exit 1"
      ]
    }
  }
}

Devbox version

0.9.0

Nix version

nix (Nix) 2.18.1

What system does this bug occur on?

Linux (x86-64)

Debug logs

No response

The text was updated successfully, but these errors were encountered:

Heus-Sueh · 2024-02-04T02:46:50Z

Sorry if this isn't the right place to report the bug or ask for help

gcurtis · 2024-02-27T20:54:40Z

Hi @Heus-Sueh, you're definitely in the right place! It looks like toga requires a few native libraries.

Try removing python312Packages.pycairo (we recommend just using a pip virtual environment) and installing the dev outputs for cairo and gobject-introspection. You'll also need pkg-config so that pip can find the libraries:

dx rm python312Packages.pycairo
dx add pkg-config@latest
dx add cairo@latest -o out,dev
dx add gobject-introspection@latest -o out,dev

That should get you a devbox.json that looks something like:

{
  "packages": {
    "pipx":       "latest",
    "python":     "latest",
    "pkg-config": "latest",
    "cairo": {
      "version": "latest",
      "outputs": ["out", "dev"]
    },
    "gobject-introspection": {
      "version": "latest",
      "outputs": ["out", "dev"]
    }
  },
  "shell": {
    "init_hook": [
      ". $VENV_DIR/bin/activate"
    ]
  }
}

Heus-Sueh · 2024-02-27T21:06:52Z

Hi @Heus-Sueh, you're definitely in the right place! It looks like toga requires a few native libraries.

Try removing python312Packages.pycairo (we recommend just using a pip virtual environment) and installing the dev outputs for cairo and gobject-introspection. You'll also need pkg-config so that pip can find the libraries:
dx rm python312Packages.pycairo
dx add pkg-config@latest
dx add cairo@latest -o out,dev
dx add gobject-introspection@latest -o out,dev
That should get you a devbox.json that looks something like:
{
  "packages": {
    "pipx":       "latest",
    "python":     "latest",
    "pkg-config": "latest",
    "cairo": {
      "version": "latest",
      "outputs": ["out", "dev"]
    },
    "gobject-introspection": {
      "version": "latest",
      "outputs": ["out", "dev"]
    }
  },
  "shell": {
    "init_hook": [
      ". $VENV_DIR/bin/activate"
    ]
  }
}

Thanks for the help, I'll test this solution later

Heus-Sueh · 2024-03-21T14:45:42Z

Sorry for the delay, I just tested it but now it's giving me this dependency error: OSError: libfontconfig.so.1: cannot open shared object file: No such file or directory

Heus-Sueh · 2024-03-21T18:04:47Z

full log:

(.venv) (devbox) ➜  pokemon_demo-Toga git:(main) ✗ briefcase dev

[pokemon-demo] Starting in dev mode...
===========================================================================
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "<frozen runpy>", line 226, in run_module
  File "<frozen runpy>", line 98, in _run_module_code
  File "<frozen runpy>", line 88, in _run_code
  File "/var/home/heus/Documents/Projects/VSCodium/Python/Briefcase-Projects/pokemon_demo-Toga/src/pokemon_demo/__main__.py", line 4, in <module>
    main().main_loop()
    ^^^^^^
  File "/var/home/heus/Documents/Projects/VSCodium/Python/Briefcase-Projects/pokemon_demo-Toga/src/pokemon_demo/app.py", line 142, in main
    return MainApp("Pokemon Demo", "org.pokemon.demo")
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/var/home/heus/Documents/Projects/VSCodium/Python/Briefcase-Projects/pokemon_demo-Toga/.devbox/virtenv/python/.venv/lib/python3.12/site-packages/toga/app.py", line 466, in __init__
    self.factory = get_platform_factory()
                   ^^^^^^^^^^^^^^^^^^^^^^
  File "/var/home/heus/Documents/Projects/VSCodium/Python/Briefcase-Projects/pokemon_demo-Toga/.devbox/virtenv/python/.venv/lib/python3.12/site-packages/toga/platform.py", line 111, in get_platform_factory
    factory = importlib.import_module(f"{backend.value}.factory")
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/var/home/heus/Documents/Projects/VSCodium/Python/Briefcase-Projects/pokemon_demo-Toga/.devbox/nix/profile/default/lib/python3.12/importlib/__init__.py", line 90, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "<frozen importlib._bootstrap>", line 1387, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1360, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1331, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 935, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 995, in exec_module
  File "<frozen importlib._bootstrap>", line 488, in _call_with_frames_removed
  File "/var/home/heus/Documents/Projects/VSCodium/Python/Briefcase-Projects/pokemon_demo-Toga/.devbox/virtenv/python/.venv/lib/python3.12/site-packages/toga_gtk/factory.py", line 1, in <module>
    from . import dialogs
  File "/var/home/heus/Documents/Projects/VSCodium/Python/Briefcase-Projects/pokemon_demo-Toga/.devbox/virtenv/python/.venv/lib/python3.12/site-packages/toga_gtk/dialogs.py", line 4, in <module>
    from .libs import Gtk
  File "/var/home/heus/Documents/Projects/VSCodium/Python/Briefcase-Projects/pokemon_demo-Toga/.devbox/virtenv/python/.venv/lib/python3.12/site-packages/toga_gtk/libs/__init__.py", line 1, in <module>
    from .fontconfig import FontConfig  # noqa: F401, F403
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/var/home/heus/Documents/Projects/VSCodium/Python/Briefcase-Projects/pokemon_demo-Toga/.devbox/virtenv/python/.venv/lib/python3.12/site-packages/toga_gtk/libs/fontconfig.py", line 5, in <module>
    fontconfig = CDLL(libfontconfig)
                 ^^^^^^^^^^^^^^^^^^^
  File "/var/home/heus/Documents/Projects/VSCodium/Python/Briefcase-Projects/pokemon_demo-Toga/.devbox/nix/profile/default/lib/python3.12/ctypes/__init__.py", line 379, in __init__
    self._handle = _dlopen(self._name, mode)
                   ^^^^^^^^^^^^^^^^^^^^^^^^^
OSError: libfontconfig.so.1: cannot open shared object file: No such file or directory

Problem running app pokemon-demo.

https://stackoverflow.com/questions/77247893/modulenotfounderror-no-module-named-distutils-in-python-3-12

Heus-Sueh · 2024-04-01T22:43:39Z

@gcurtis Sorry to ping you, but could you help me with this error?

Heus-Sueh added bug Something isn't working triage Issue needs triage labels Feb 4, 2024

gcurtis self-assigned this Feb 27, 2024

gcurtis added python Support for Python, pip, Poetry, etc. linux Linux systems linker Related to linking (ld, ld.so or dyld) x86-64 x86-64 systems and removed triage Issue needs triage labels Feb 27, 2024

gcurtis mentioned this issue Feb 27, 2024

Preinstall common libraries for popular environments #1854

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[Python-pip] I can't install toga #1780

[Python-pip] I can't install toga #1780

Heus-Sueh commented Feb 4, 2024

Heus-Sueh commented Feb 4, 2024

gcurtis commented Feb 27, 2024

Heus-Sueh commented Feb 27, 2024

Heus-Sueh commented Mar 21, 2024

Heus-Sueh commented Mar 21, 2024

Heus-Sueh commented Apr 1, 2024

[Python-pip] I can't install toga #1780

[Python-pip] I can't install toga #1780

Comments

Heus-Sueh commented Feb 4, 2024

What happened?

Steps to reproduce

Command

devbox.json

Devbox version

Nix version

What system does this bug occur on?

Debug logs

Heus-Sueh commented Feb 4, 2024

gcurtis commented Feb 27, 2024

Heus-Sueh commented Feb 27, 2024

Heus-Sueh commented Mar 21, 2024

Heus-Sueh commented Mar 21, 2024

Heus-Sueh commented Apr 1, 2024