pip Can't Install CS50 Command Line Tools on Ubuntu 23.04

[livingst76]

Requirement already satisfied: pip in ./myenv/lib/python3.11/site-packages (23.1.2)
Collecting pip
Downloading pip-23.2.1-py3-none-any.whl (2.1 MB)
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 2.1/2.1 MB 1.1 MB/s eta 0:00:00
Installing collected packages: pip
Attempting uninstall: pip
Found existing installation: pip 23.1.2
Uninstalling pip-23.1.2:
Successfully uninstalled pip-23.1.2
Successfully installed pip-23.2.1
(myenv) livingst@LDT-B5400:~$ pip install submit50
Collecting submit50
Downloading submit50-3.1.1-py3-none-any.whl (19 kB)
Collecting lib50<4,>=3 (from submit50)
Downloading lib50-3.0.6-py3-none-any.whl (39 kB)
Collecting requests>=2.19 (from submit50)
Obtaining dependency information for requests>=2.19 from https://files.pythonhosted.org/packages/70/8e/0e2d847013cb52cd35b38c009bb167a1a26b2ce6cd6965bf26b47bc0bf44/requests-2.31.0-py3-none-any.whl.metadata
Downloading requests-2.31.0-py3-none-any.whl.metadata (4.6 kB)
Collecting termcolor>=1.1 (from submit50)
Downloading termcolor-2.3.0-py3-none-any.whl (6.9 kB)
Collecting attrs<21,>=18.1 (from lib50<4,>=3->submit50)
Downloading attrs-20.3.0-py2.py3-none-any.whl (49 kB)
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 49.3/49.3 kB 529.5 kB/s eta 0:00:00
Collecting pexpect<5,>=4.6 (from lib50<4,>=3->submit50)
Downloading pexpect-4.8.0-py2.py3-none-any.whl (59 kB)
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 59.0/59.0 kB 570.5 kB/s eta 0:00:00
Collecting pyyaml<6,>=3.10 (from lib50<4,>=3->submit50)
Downloading PyYAML-5.4.1.tar.gz (175 kB)
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 175.1/175.1 kB 840.3 kB/s eta 0:00:00
Installing build dependencies ... done
Getting requirements to build wheel ... error
error: subprocess-exited-with-error

× Getting requirements to build wheel did not run successfully.
│ exit code: 1
╰─> [68 lines of output]
/tmp/pip-build-env-0jvrkegv/overlay/lib/python3.11/site-packages/setuptools/config/setupcfg.py:293: _DeprecatedConfig: Deprecated config in setup.cfg
!!

          ********************************************************************************
          The license_file parameter is deprecated, use license_files instead.
  
          By 2023-Oct-30, you need to update your project and remove deprecated calls
          or your builds will no longer be supported.
  
          See https://setuptools.pypa.io/en/latest/userguide/declarative_config.html for details.
          ********************************************************************************
  
  !!
    parsed = self.parsers.get(option_name, lambda x: x)(value)
  running egg_info
  writing lib3/PyYAML.egg-info/PKG-INFO
  writing dependency_links to lib3/PyYAML.egg-info/dependency_links.txt
  writing top-level names to lib3/PyYAML.egg-info/top_level.txt
  Traceback (most recent call last):
    File "/home/livingst/myenv/lib/python3.11/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 353, in <module>
      main()
    File "/home/livingst/myenv/lib/python3.11/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 335, in main
      json_out['return_val'] = hook(**hook_input['kwargs'])
                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    File "/home/livingst/myenv/lib/python3.11/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 118, in get_requires_for_build_wheel
      return hook(config_settings)
             ^^^^^^^^^^^^^^^^^^^^^
    File "/tmp/pip-build-env-0jvrkegv/overlay/lib/python3.11/site-packages/setuptools/build_meta.py", line 341, in get_requires_for_build_wheel
      return self._get_build_requires(config_settings, requirements=['wheel'])
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    File "/tmp/pip-build-env-0jvrkegv/overlay/lib/python3.11/site-packages/setuptools/build_meta.py", line 323, in _get_build_requires
      self.run_setup()
    File "/tmp/pip-build-env-0jvrkegv/overlay/lib/python3.11/site-packages/setuptools/build_meta.py", line 338, in run_setup
      exec(code, locals())
    File "<string>", line 271, in <module>
    File "/tmp/pip-build-env-0jvrkegv/overlay/lib/python3.11/site-packages/setuptools/__init__.py", line 107, in setup
      return distutils.core.setup(**attrs)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    File "/tmp/pip-build-env-0jvrkegv/overlay/lib/python3.11/site-packages/setuptools/_distutils/core.py", line 185, in setup
      return run_commands(dist)
             ^^^^^^^^^^^^^^^^^^
    File "/tmp/pip-build-env-0jvrkegv/overlay/lib/python3.11/site-packages/setuptools/_distutils/core.py", line 201, in run_commands
      dist.run_commands()
    File "/tmp/pip-build-env-0jvrkegv/overlay/lib/python3.11/site-packages/setuptools/_distutils/dist.py", line 969, in run_commands
      self.run_command(cmd)
    File "/tmp/pip-build-env-0jvrkegv/overlay/lib/python3.11/site-packages/setuptools/dist.py", line 1234, in run_command
      super().run_command(command)
    File "/tmp/pip-build-env-0jvrkegv/overlay/lib/python3.11/site-packages/setuptools/_distutils/dist.py", line 988, in run_command
      cmd_obj.run()
    File "/tmp/pip-build-env-0jvrkegv/overlay/lib/python3.11/site-packages/setuptools/command/egg_info.py", line 314, in run
      self.find_sources()
    File "/tmp/pip-build-env-0jvrkegv/overlay/lib/python3.11/site-packages/setuptools/command/egg_info.py", line 322, in find_sources
      mm.run()
    File "/tmp/pip-build-env-0jvrkegv/overlay/lib/python3.11/site-packages/setuptools/command/egg_info.py", line 551, in run
      self.add_defaults()
    File "/tmp/pip-build-env-0jvrkegv/overlay/lib/python3.11/site-packages/setuptools/command/egg_info.py", line 589, in add_defaults
      sdist.add_defaults(self)
    File "/tmp/pip-build-env-0jvrkegv/overlay/lib/python3.11/site-packages/setuptools/command/sdist.py", line 104, in add_defaults
      super().add_defaults()
    File "/tmp/pip-build-env-0jvrkegv/overlay/lib/python3.11/site-packages/setuptools/_distutils/command/sdist.py", line 251, in add_defaults
      self._add_defaults_ext()
    File "/tmp/pip-build-env-0jvrkegv/overlay/lib/python3.11/site-packages/setuptools/_distutils/command/sdist.py", line 336, in _add_defaults_ext
      self.filelist.extend(build_ext.get_source_files())
                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    File "<string>", line 201, in get_source_files
    File "/tmp/pip-build-env-0jvrkegv/overlay/lib/python3.11/site-packages/setuptools/_distutils/cmd.py", line 107, in __getattr__
      raise AttributeError(attr)
  AttributeError: cython_sources
  [end of output]

note: This error originates from a subprocess, and is likely not a problem with pip.
error: subprocess-exited-with-error

× Getting requirements to build wheel 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.

[livingst76]

``I have tried downgrading pip to 22.3.1, but that didn't work either.
It gives this error each time I try installing it in a system-wide environment:
error: externally-managed-environment

× This environment is externally managed
╰─> To install Python packages system-wide, try apt install
python3-xyz, where xyz is the package you are trying to
install.

If you wish to install a non-Debian-packaged Python package,
create a virtual environment using python3 -m venv path/to/venv.
Then use path/to/venv/bin/python and path/to/venv/bin/pip. Make
sure you have python3-full installed.

If you wish to install a non-Debian packaged Python application,
it may be easiest to use pipx install xyz, which will manage a
virtual environment for you. Make sure you have pipx installed.

See /usr/share/doc/python3.11/README.venv for more information.

note: If you believe this is a mistake, please contact your Python installation or OS distribution provider. You can override this, at the risk of breaking your Python installation or OS, by passing --break-system-packages.

[rongxin-liu]

yaml/pyyaml#724
yaml/pyyaml#736

#311

[rongxin-liu]

@livingst76 Can you try installing check50 again now and see if that works?

[livingst76]

@rongxin-liu It's worked! I had to add the "--break-system-packages" flag to install it. I'm not sure that's safe either, but it's working now.
Thank you.

[livingst76]

Do you think it's safe to add that flag?

[rongxin-liu]

Normally you shouldn't need to add "--break-system-packages" to install check50/submit50 or any python packages.

This particular PyYAML issue was caused by a recent Cython release and installing the latest PyYAML should address the issue:
yaml/pyyaml#736

[livingst76]

That worked just fine.
Thank you.