Package installation fails after new release v2.2.0

[pauliuskrispis]

Describe the bug

Hi guys! I cannot seem to install mysqlclient via pip after the new release (v2.2.0).

Dropping the stack trace:

Collecting mysqlclient (from mysql==0.0.3->-r /app/requirements.txt (line 12))
  Downloading mysqlclient-2.2.0.tar.gz (89 kB)
     ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 89.5/89.5 kB 250.3 MB/s eta 0:00:00
  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 'error'
  error: subprocess-exited-with-error
  
  × Getting requirements to build wheel did not run successfully.
  │ exit code: 1
  ╰─> [24 lines of output]
      /bin/sh: 1: pkg-config: not found
      /bin/sh: 1: pkg-config: not found
      Trying pkg-config --exists mysqlclient
      Command 'pkg-config --exists mysqlclient' returned non-zero exit status 127.
      Trying pkg-config --exists mariadb
      Command 'pkg-config --exists mariadb' returned non-zero exit status 127.
      Traceback (most recent call last):
        File "/usr/local/lib/python3.8/dist-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 353, in <module>
          main()
        File "/usr/local/lib/python3.8/dist-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 335, in main
          json_out['return_val'] = hook(**hook_input['kwargs'])
        File "/usr/local/lib/python3.8/dist-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-d4slkkxg/overlay/lib/python3.8/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-d4slkkxg/overlay/lib/python3.8/site-packages/setuptools/build_meta.py", line 323, in _get_build_requires
          self.run_setup()
        File "/tmp/pip-build-env-d4slkkxg/overlay/lib/python3.8/site-packages/setuptools/build_meta.py", line 338, in run_setup
          exec(code, locals())
        File "<string>", line 154, in <module>
        File "<string>", line 48, in get_config_posix
        File "<string>", line 27, in find_package_name
      Exception: Can not find valid pkg-config name.
      Specify MYSQLCLIENT_CFLAGS and MYSQLCLIENT_LDFLAGS env vars manually
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
error: subprocess-exited-with-error

I just want to verify if this is related to the new release.

[eljeffeg]

I can confirm from my testing that 2.1.1 worked fine and 2.2.0 failed to build for me as seen by @pauliuskrispis

[methane]

As message said, you need to install pkg-config

[methane]

Read #584

[eljeffeg]

@methane Alpine Linux doesn't have a pkg-config package. It does have a pkgconfig but installing that didn't resolve the issue for me.

[methane]

You should fix it by yourself or alpine community.

[darktohka]

Same issue here, please fix this as soon as possible. Reopen the issue as it is important.

Exporting environment variables as a workaround is definitely not proper.

[jgb]

@methane I've got pkg-config installed, but still mysqlclient >= 2.2.0 fails to install as follows on Ubuntu 22.04 LTS and python 3.10:

Collecting mysqlclient==2.2.0 (from -r base-requirements.txt (line 65))                                                                                                                                                                        
  Downloading mysqlclient-2.2.0.tar.gz (89 kB)                                                                                                                                                                                                 
     ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 89.5/89.5 kB 8.4 MB/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                                                                                                                                                                                                                               
  ╰─> [22 lines of output]                                                                                                                                                                                                                     
      Trying pkg-config --exists mysqlclient                                                                                                                                                                                                   
      Command 'pkg-config --exists mysqlclient' returned non-zero exit status 1.                                                                                                                                                               
      Trying pkg-config --exists mariadb                                                                                                                                                                                                       
      Command 'pkg-config --exists mariadb' returned non-zero exit status 1.                                                                                                                                                                   
      Traceback (most recent call last):                                                                                                                                                                                                       
        File "/home/quividi/.venv/vidicenter/lib/python3.10/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 353, in <module>                                                                                       
          main()                                                                                                                                                                                                                               
        File "/home/quividi/.venv/vidicenter/lib/python3.10/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/quividi/.venv/vidicenter/lib/python3.10/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-vvrc6ll4/overlay/lib/python3.10/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-vvrc6ll4/overlay/lib/python3.10/site-packages/setuptools/build_meta.py", line 323, in _get_build_requires                                                                                                     
          self.run_setup()                                                                                                                                                                                                                     
        File "/tmp/pip-build-env-vvrc6ll4/overlay/lib/python3.10/site-packages/setuptools/build_meta.py", line 338, in run_setup                                                                                                               
          exec(code, locals())                                                                                                                                                                                                                 
        File "<string>", line 154, in <module>                                                                                                                                                                                                 
        File "<string>", line 48, in get_config_posix                                                                                                                                                                                          
        File "<string>", line 27, in find_package_name                                                                                                                                                                                         
      Exception: Can not find valid pkg-config name.                                                                                                                                                                                           
      Specify MYSQLCLIENT_CFLAGS and MYSQLCLIENT_LDFLAGS env vars manually                                                                                                                                                                     
      [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.