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Problème d'installation de matplotlib in Python

J'essaie d'installer Matplotlib dans Windows X64 avec python 3.9. Quand je le fais:

pIP INSTALLATION MATPLOTLIB

Je reçois cette erreur:

ERROR: Command errored out with exit status 1:
 command: 'c:\program files\python39\python.exe' -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\Luca\\AppData\\Local\\Temp\\pip-install-zlfu5f08\\kiwisolver\\setup.py'"'"'; __file__='"'"'C:\\Users\\Luca\\AppData\\Local\\Temp\\pip-install-zlfu5f08\\kiwisolver\\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' Egg_info --Egg-base 'C:\Users\Luca\AppData\Local\Temp\pip-pip-Egg-info-mriih1bh'
     cwd: C:\Users\Luca\AppData\Local\Temp\pip-install-zlfu5f08\kiwisolver\
Complete output (44 lines):
WARNING: The wheel package is not available.
  ERROR: Command errored out with exit status 1:
   command: 'c:\program files\python39\python.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\Luca\\AppData\\Local\\Temp\\pip-wheel-pvxhkv11\\cppy\\setup.py'"'"'; __file__='"'"'C:\\Users\\Luca\\AppData\\Local\\Temp\\pip-wheel-pvxhkv11\\cppy\\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d 'C:\Users\Luca\AppData\Local\Temp\pip-wheel-1s8s6o5r'
       cwd: C:\Users\Luca\AppData\Local\Temp\pip-wheel-pvxhkv11\cppy\
  Complete output (6 lines):
  usage: setup.py [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
     or: setup.py --help [cmd1 cmd2 ...]
     or: setup.py --help-commands
     or: setup.py cmd --help

  error: invalid command 'bdist_wheel'
  ----------------------------------------
  ERROR: Failed building wheel for cppy
ERROR: Failed to build one or more wheels
Traceback (most recent call last):
  File "c:\program files\python39\lib\site-packages\setuptools\installer.py", line 128, in fetch_build_Egg
    subprocess.check_call(cmd)
  File "c:\program files\python39\lib\subprocess.py", line 373, in check_call
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['c:\\program files\\python39\\python.exe', '-m', 'pip', '--disable-pip-version-check', 'wheel', '--no-deps', '-w', 'C:\\Users\\Luca\\AppData\\Local\\Temp\\tmpggz7lusd', '--quiet', 'cppy>=1.1.0']' returned non-zero exit status 1.

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "C:\Users\Luca\AppData\Local\Temp\pip-install-zlfu5f08\kiwisolver\setup.py", line 59, in <module>
    setup(
  File "c:\program files\python39\lib\site-packages\setuptools\__init__.py", line 164, in setup
    _install_setup_requires(attrs)
  File "c:\program files\python39\lib\site-packages\setuptools\__init__.py", line 159, in _install_setup_requires
    dist.fetch_build_eggs(dist.setup_requires)
  File "c:\program files\python39\lib\site-packages\setuptools\dist.py", line 699, in fetch_build_eggs
    resolved_dists = pkg_resources.working_set.resolve(
  File "c:\program files\python39\lib\site-packages\pkg_resources\__init__.py", line 779, in resolve
    dist = best[req.key] = env.best_match(
  File "c:\program files\python39\lib\site-packages\pkg_resources\__init__.py", line 1064, in best_match
    return self.obtain(req, installer)
  File "c:\program files\python39\lib\site-packages\pkg_resources\__init__.py", line 1076, in obtain
    return installer(requirement)
  File "c:\program files\python39\lib\site-packages\setuptools\dist.py", line 758, in fetch_build_Egg
    return fetch_build_Egg(self, req)
  File "c:\program files\python39\lib\site-packages\setuptools\installer.py", line 130, in fetch_build_Egg
    raise DistutilsError(str(e)) from e
distutils.errors.DistutilsError: Command '['c:\\program files\\python39\\python.exe', '-m', 'pip', '--disable-pip-version-check', 'wheel', '--no-deps', '-w', 'C:\\Users\\Luca\\AppData\\Local\\Temp\\tmpggz7lusd', '--quiet', 'cppy>=1.1.0']' returned non-zero exit status 1.
----------------------------------------ERROR: Command errored out with exit status 1: python setup.py Egg_info Check the logs for full command output.

J'ai essayé de suivre tous les conseils que j'ai trouvés ici, mais cela continue de générer l'erreur.

Qui peut m'aider, s'il vous plaît?

pythonmatplotlibsetup.py
4
Luca Chiavarini

Essayer

pip install wheel

puis essayez à nouveau.

1
Aldy syahdeini

De la stacktrace, il semble que la roue n'est pas installée

Essayez ce qui suit

pip install wheel

puis courir

python setup.py bdist_wheel

Selon la documentation Roue PIP

Build System Interface¶
In order for pip to build a wheel, setup.py 
must implement the bdist_wheel command with the following syntax:

python setup.py bdist_wheel -d TARGET
This command must create a wheel compatible with the 
invoking Python interpreter, and save that wheel in the 
directory TARGET.

No other build system commands are invoked by the pip wheel command.
1
Paddy Popeye

J'ai eu la même erreur. Après avoir exécuté pip install wheel J'ai couru l'installation avec le --prefer-binary drapeau:

python -m pip install -U matplotlib --prefer-binary.

La documentation lit les éléments suivants:

Si cette commande entraîne la compilée MATPLOTLIB à partir de la source et que la compilation a peut-être des problèmes, vous pouvez ajouter --Prefer-binaire pour sélectionner la version la plus récente de Matplotlib pour laquelle il existe une roue précompilée pour votre système d'exploitation et Python.

1
Bas G