Cound not get source code when using flet build linux

[ilyamiro]

Duplicate Check

• I have searched the opened issues and there are no duplicates

Describe the bug

When packaging an app using flet build linux, an error occurs. Could not find a way to fix it

Code sample

Code

flet build linux --verbose --module-name main.py

To reproduce

Run flet build linux --verbose --module-name main.py

Expected behavior

No response

Screenshots / Videos

Captures

[Upload media here]

Operating System

Linux

Operating system details

Fedora Workstation 40

Flet version

0.24.1

Regression

No, it isn't

Suggestions

No response

Logs

Logs

flet build linux --verbose --module-name main.py                       ✔ ╱   stewart   18:33:31 ▓▒░
[18:33:35] Flutter bootstrap directory: /tmp/flet_flutter_build_DBJd8e3Hlo                                                                        
           No additional Flutter dependencies!                                                                                                    
[18:33:36] Created Flutter bootstrap project from gh:flet-dev/flet-build-template with ref 0.24.1 ✅                                              
           Customized app icons and splash images ✅                                                                                              
           Run subprocess: ['/home/ilyamiro/Загрузки/flutter/bin/dart', 'run', 'flutter_launcher_icons']                                          
(  ●   ) Generating app icons (1.7s)
Downloading packages... 
Got dependencies in `/tmp/flet_flutter_build_DBJd8e3Hlo`.
(   ●  ) Generating app icons ⏳... 
Built flutter_launcher_icons:flutter_launcher_icons.
(     ●) Generating app icons ⏳...   ════════════════════════════════════════════
     FLUTTER LAUNCHER ICONS (v0.13.1)                               
  ════════════════════════════════════════════
  
(    ● ) Generating app icons ⏳... • Creating default icons Android
(   ●  ) Generating app icons ⏳... • Overwriting the default Android launcher icon with a new icon
(●     ) Generating app icons ⏳... • Overwriting default iOS launcher icon with new icon
( ●    ) Generating app icons ⏳...done
(●     ) Generating app icons ⏳...done
(     ●) Generating app icons ⏳...done

✓ Successfully generated launcher icons
[18:33:41] Generated app icons ✅                                                                                                                 
           Run subprocess: ['/home/ilyamiro/Загрузки/flutter/bin/dart', 'run', 'serious_python:main', 'package', '/home/ilyamiro/stewart',        
           '--dep-mappings', 'flet=flet-embed', '--req-deps', 'flet-embed', '--exclude', 'build']                                                 
(    ● ) Packaging Python app ⏳... 
Built serious_python:main.
(  ●   ) Packaging Python app ⏳... Running package command
( ●    ) Packaging Python app ⏳... Creating asset directory: /tmp/flet_flutter_build_DBJd8e3Hlo/app
Copying Python app from /home/ilyamiro/stewart to /tmp/serious_python_tempGJXSCP
( ●    ) Packaging Python app ⏳... Installing dependencies [ytmusicapi==1.8.2, yt-dlp==2024.10.7, icalendar==6.0.1, python-vlc==3.0.21203, curl_cffi~=0.7.3, numpy==1.26.4, g4f~=0.3.2.7, playsound~=1.3.0, flet~=0.24.1, vosk~=0.3.45, voicesynth~=0.2.2.post3, PyAudio~=0.2.14, PyYAML~=6.0.2, requests~=2.32.3, num2words~=0.5.13, matplotlib~=3.9.2, PyAutoGUI~=0.9.54, pynput~=1.7.7, pygame~=2.6.0, plyer~=2.1.0, flet-embed] with pip command to /tmp/serious_python_tempGJXSCP/__pypackages__
Downloading Python distributive from https://github.com/indygreg/python-build-standalone/releases/download/20231002/cpython-3.11.6+20231002-x86_64-unknown-linux-gnu-install_only.tar.gz to /tmp/cpython-3.11.6+20231002-x86_64-unknown-linux-gnu-install_only.tar.gz
( ●    ) Packaging Python app ⏳... Extracting Python distributive from /tmp/cpython-3.11.6+20231002-x86_64-unknown-linux-gnu-install_only.tar.gz to /tmp/hostpython3.11_SVWAAC
( ●    ) Packaging Python app ⏳...   error: subprocess-exited-with-error
  
  × Getting requirements to build wheel did not run successfully.
  │ exit code: 1
  ╰─> [28 lines of output]
      Traceback (most recent call last):
        File "/home/ilyamiro/.local/lib/python3.11/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 353, in <module>
          main()
        File "/home/ilyamiro/.local/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/ilyamiro/.local/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-c2tq7l94/overlay/lib/python3.11/site-packages/setuptools/build_meta.py", line 332, in get_requires_for_build_wheel
          return self._get_build_requires(config_settings, requirements=[])
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        File "/tmp/pip-build-env-c2tq7l94/overlay/lib/python3.11/site-packages/setuptools/build_meta.py", line 302, in _get_build_requires
          self.run_setup()
        File "/tmp/pip-build-env-c2tq7l94/overlay/lib/python3.11/site-packages/setuptools/build_meta.py", line 503, in run_setup
          super().run_setup(setup_script=setup_script)
        File "/tmp/pip-build-env-c2tq7l94/overlay/lib/python3.11/site-packages/setuptools/build_meta.py", line 318, in run_setup
          exec(code, locals())
        File "<string>", line 6, in <module>
        File "/tmp/hostpython3.11_SVWAAC/python/lib/python3.11/inspect.py", line 1262, in getsource
          lines, lnum = getsourcelines(object)
                        ^^^^^^^^^^^^^^^^^^^^^^
        File "/tmp/hostpython3.11_SVWAAC/python/lib/python3.11/inspect.py", line 1244, in getsourcelines
          lines, lnum = findsource(object)
                        ^^^^^^^^^^^^^^^^^^
        File "/tmp/hostpython3.11_SVWAAC/python/lib/python3.11/inspect.py", line 1081, in findsource
          raise OSError('could not get source code')
      OSError: could not get source code
      [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.
[18:34:08] Deleting Flutter bootstrap directory /tmp/flet_flutter_build_DBJd8e3Hlo                                                                
           Error building Flet app - see the log of failed command above.                                                                         
           Run subprocess: ['/home/ilyamiro/Загрузки/flutter/bin/flutter', 'doctor']                                                              
[18:34:10] Doctor summary (to see all details, run flutter doctor -v):                                                                            
           [✓] Flutter (Channel stable, 3.24.3, on Fedora Linux 40 (Workstation Edition) 6.10.12-200.fc40.x86_64, locale en_US.UTF-8)             
           [✓] Android toolchain - develop for Android devices (Android SDK version 34.0.0)                                                       
           [✓] Chrome - develop for the web                                                                                                       
           [✓] Linux toolchain - develop for Linux desktop                                                                                        
           [✓] Android Studio (version 2024.2)                                                                                                    
           [✓] VS Code (version 1.94.2)                                                                                                           
           [✓] Connected device (2 available)                                                                                                     
           [✓] Network resources                                                                                                                  
                                                                                                                                                  
           • No issues found!       

Additional details

No response

[FeodorFitsner]

Try building with Flet pre-release: https://flet.dev/blog/flet-new-packaging-pre-release

[ilyamiro]

Now there is dependency problem, even though pyaudio is installed, it shows this

[FeodorFitsner]

PyAudio has binary packages for Windows only: https://pypi.org/project/PyAudio/#files

Are you able to install it on Linux machine with pip install pyaudio?

[ilyamiro]

Yes i am, my project is fully functional with pyaudio. Does this mean i can't build if my project has pyaudio in it? Because it's not the only package that has such problem.

[FeodorFitsner]

OK, we could try removing "only binary" requirement when packaging for non-mobile platforms: https://github.com/flet-dev/serious-python/blob/main/src/serious_python/bin/package_command.dart#L300-L301

This case pip will try to compile the package from source distribution.

flet-dev/serious-python#112

[FeodorFitsner]

OK, I've modified flet build template to allow packaging for desktops from source packages (that pyaudio package still won't be working for iOS and Android anyway).

Try re-building with Flet pre-release and let me know how it worked.

[ilyamiro]

I have tried building the project again on the new pre-release version .dev3526 and now i get the similar error to the one i had on 0.24.1. I have not modified anything else other than just installing a new flet version. I have a python version 3.11.10, but the cpython version being installed is 3.12, may that be an issue? Here are the logs:

flet build linux --module-name main.py --verbose
[14:43:40] No additional Flutter dependencies!                                                   
[14:43:41] Created Flutter bootstrap project from gh:flet-dev/flet-build-template with ref 0.25.0
           ✅                                                                                    
           Customized app icons and splash images ✅                                             
           Run subprocess: ['/home/ilyamiro/Загрузки/flutter/bin/dart', 'run',                   
           'flutter_launcher_icons']                                                             
(  ●   ) Generating app icons ⏳... Resolving dependencies in `/home/ilyamiro/stewart/build/flutt(   ●  ) Generating app icons (2.0s)
(    ● ) Generating app icons (8.0s)
Got dependencies in `/home/ilyamiro/stewart/build/flutter`.
( ●    ) Generating app icons ⏳... 
Built flutter_launcher_icons:flutter_launcher_icons.
( ●    ) Generating app icons ⏳...   ════════════════════════════════════════════
     FLUTTER LAUNCHER ICONS (v0.14.1)                               
  ════════════════════════════════════════════
  
(  ●   ) Generating app icons ⏳... • Creating default icons Android
(   ●  ) Generating app icons ⏳... • Overwriting the default Android launcher icon with a new icon
(    ● ) Generating app icons ⏳... • Creating mipmap xml file Android
(    ● ) Generating app icons ⏳... • Overwriting default iOS launcher icon with new icon
(     ●) Generating app icons ⏳...done
(    ● ) Generating app icons ⏳...done
( ●    ) Generating app icons ⏳...done

✓ Successfully generated launcher icons
[14:43:55] Generated app icons ✅                                                                
           Run subprocess: ['/home/ilyamiro/Загрузки/flutter/bin/dart', 'run',                   
           'serious_python:main', 'package', '/home/ilyamiro/stewart', '--platform', 'Linux',    
           '--requirements', '-r,/home/ilyamiro/stewart/requirements.txt', '--exclude', 'build', 
           '--cleanup']                                                                          
( ●    ) Packaging Python app ⏳... 
Built serious_python:main.
(     ●) Packaging Python app ⏳... Running package command
Extra PyPi indexes: [https://pypi.flet.dev]
Creating asset directory: /home/ilyamiro/stewart/build/flutter/app
Created temp directory: /tmp/serious_python_tempBSMJYW
Copying Python app from /home/ilyamiro/stewart to a temp directory
(   ●  ) Packaging Python app ⏳... Cleanup app
( ●    ) Packaging Python app ⏳... Configured Linux/ platform with sitecustomize.py
Installing [-r, /home/ilyamiro/stewart/requirements.txt] with pip command to /tmp/serious_python_tempBSMJYW/__pypackages__
Downloading Python distributive from https://github.com/indygreg/python-build-standalone/releases/download/20240909/cpython-3.12.6+20240909-x86_64-unknown-linux-gnu-install_only_stripped.tar.gz to a build directory
( ●    ) Packaging Python app ⏳... Extracting Python distributive
( ●    ) Packaging Python app ⏳...   error: subprocess-exited-with-error
  
  × Getting requirements to build wheel did not run successfully.
  │ exit code: 1
  ╰─> [28 lines of output]
      Traceback (most recent call last):
        File "/home/ilyamiro/.local/lib/python3.12/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 353, in <module>
          main()
        File "/home/ilyamiro/.local/lib/python3.12/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/ilyamiro/.local/lib/python3.12/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-zxcitznr/overlay/lib/python3.12/site-packages/setuptools/build_meta.py", line 332, in get_requires_for_build_wheel
          return self._get_build_requires(config_settings, requirements=[])
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        File "/tmp/pip-build-env-zxcitznr/overlay/lib/python3.12/site-packages/setuptools/build_meta.py", line 302, in _get_build_requires
          self.run_setup()
        File "/tmp/pip-build-env-zxcitznr/overlay/lib/python3.12/site-packages/setuptools/build_meta.py", line 516, in run_setup
          super().run_setup(setup_script=setup_script)
        File "/tmp/pip-build-env-zxcitznr/overlay/lib/python3.12/site-packages/setuptools/build_meta.py", line 318, in run_setup
          exec(code, locals())
        File "<string>", line 6, in <module>
        File "/home/ilyamiro/stewart/build/flutter/build/build_python_3.12.6/python/lib/python3.12/inspect.py", line 1285, in getsource
          lines, lnum = getsourcelines(object)
                        ^^^^^^^^^^^^^^^^^^^^^^
        File "/home/ilyamiro/stewart/build/flutter/build/build_python_3.12.6/python/lib/python3.12/inspect.py", line 1267, in getsourcelines
          lines, lnum = findsource(object)
                        ^^^^^^^^^^^^^^^^^^
        File "/home/ilyamiro/stewart/build/flutter/build/build_python_3.12.6/python/lib/python3.12/inspect.py", line 1096, in findsource
          raise OSError('could not get source code')
      OSError: could not get source code
      [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.
[14:44:27] Error building Flet app - see the log of failed command above.                        
           Run subprocess: ['/home/ilyamiro/Загрузки/flutter/bin/flutter', 'doctor']             
[14:44:32] Doctor summary (to see all details, run flutter doctor -v):                           
           [✓] Flutter (Channel stable, 3.24.3, on Fedora Linux 40 (Workstation Edition)         
           6.10.12-200.fc40.x86_64, locale en_US.UTF-8)                                          
           [✓] Android toolchain - develop for Android devices (Android SDK version 34.0.0)      
           [✓] Chrome - develop for the web                                                      
           [✓] Linux toolchain - develop for Linux desktop                                       
           [✓] Android Studio (version 2024.2)                                                   
           [✓] VS Code (version 1.94.2)                                                          
           [✓] Connected device (3 available)                                                    
           [✓] Network resources                                                                 
                                                                                                 
           • No issues found!

[FeodorFitsner]

OK, few more things I need:

• the contents of /home/ilyamiro/stewart/requirements.txt
• the value of your PATH variable (echo $PATH).
  Thanks.

[ilyamiro]

Contents of requirements.txt:

ytmusicapi==1.8.2
yt-dlp==2024.10.7
icalendar==6.0.1
python-vlc==3.0.21203
curl_cffi~=0.7.3
numpy==1.26.4
g4f~=0.3.2.7
playsound~=1.3.0
flet~=0.25.0.dev3519
pyautogui~=0.9.54
PyAudio~=0.2.14
vosk~=0.3.45
voicesynth~=0.2.2.post3
PyYAML~=6.0.2
requests~=2.32.3
num2words~=0.5.13
matplotlib~=3.9.2
pynput~=1.7.7
plyer~=2.1.0

$PATH variable:

/home/ilyamiro/.local/share/zinit/plugins/sharkdp---bat:/home/ilyamiro/.local/share/zinit/plugins/ogham---exa:/home/ilyamiro/.local/share/zinit/plugins/starship---starship:/home/ilyamiro/.local/share/zinit/plugins/junegunn---fzf-bin:/home/ilyamiro/.local/share/zinit/polaris/bin:/run/user/1000/fnm_multishells/20560_1729193580699/bin:/home/ilyamiro/.cargo/bin:/home/ilyamiro/.local/bin:/home/ilyamiro/.scripts:/home/ilyamiro/.local/share/pnpm:/home/ilyamiro/.spicetify:/home/ilyamiro/Загрузки/android-studio/bin:/home/ilyamiro/Загрузки/flutter/bin:/usr/lib64/ccache:/usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin:/var/lib/snapd/snap/bin:/usr/local/go/bin

[FeodorFitsner]

OK, you've got a lot in requirements.txt.
Looking at OSError: could not get source code error we can't tell for sure it caused by PyAudio dependency.
To find offending package I'd start with a minimal requirements.txt, say with flet and PyAudio only, do flet build and then add more deps one-by-one until it fails.

I also don't like the fact it looks into /home/ilyamiro/.local/lib/python3.12/site-packages/pip/_vendor/.... I think we need a better isolation for flet build command.

[FeodorFitsner]

Is Flet on your machine installed into /home/ilyamiro/.local/lib/python3.12/site-packages?

[ilyamiro]

I am using a python version 3.11.10 (not 3.12) inside of a python virtual environment that was active when i was running flet build. Tomorrow I will try and run with less packages in requirements, but talking about a big amount of them, I would suppose that lots of big projects with a gui component would require lot's of dependencies, and being able to build an executable for all of the platforms including Linux would be really nice. I am looking forward to helping you solve that issue.

[FeodorFitsner]

Got anything?