TypeError: an integer is required

[Brandon Calitz]

(venv) C:\Users\User\Desktop\Python\LoginandReg>pyinstaller --onefile -w app.py

94 INFO: PyInstaller: 3.5

94 INFO: Python: 3.8.1

95 INFO: Platform: Windows-10-10.0.18362-SP0

96 INFO: wrote C:\Users\User\Desktop\Python\LoginandReg\app.spec

100 INFO: UPX is not available.

101 INFO: Extending PYTHONPATH with paths

['C:\\Users\\User\\Desktop\\Python\\LoginandReg',

 'C:\\Users\\User\\Desktop\\Python\\LoginandReg']

102 INFO: checking Analysis

248 INFO: checking PYZ

248 INFO: Building because toc changed

249 INFO: Building PYZ (ZlibArchive) C:\Users\User\Desktop\Python\LoginandReg\build\app\PYZ-00.pyz

Traceback (most recent call last):

  File "C:\Users\User\AppData\Local\Programs\Python\Python38\lib\runpy.py", line 193, in _run_module_as_main

    return _run_code(code, main_globals, None,

  File "C:\Users\User\AppData\Local\Programs\Python\Python38\lib\runpy.py", line 86, in _run_code

    exec(code, run_globals)

  File "C:\Users\User\Desktop\Python\LoginandReg\venv\Scripts\pyinstaller.exe\__main__.py", line 9, in <module>

  File "c:\users\user\desktop\python\loginandreg\venv\lib\site-packages\PyInstaller\__main__.py", line 111, in run

    run_build(pyi_config, spec_file, **vars(args))

  File "c:\users\user\desktop\python\loginandreg\venv\lib\site-packages\PyInstaller\__main__.py", line 63, in run_build

    PyInstaller.building.build_main.main(pyi_config, spec_file, **kwargs)

  File "c:\users\user\desktop\python\loginandreg\venv\lib\site-packages\PyInstaller\building\build_main.py", line 844, in main

    build(specfile, kw.get('distpath'), kw.get('workpath'), kw.get('clean_build'))

  File "c:\users\user\desktop\python\loginandreg\venv\lib\site-packages\PyInstaller\building\build_main.py", line 791, in build

    exec(code, spec_namespace)

  File "C:\Users\User\Desktop\Python\LoginandReg\app.spec", line 18, in <module>

    pyz = PYZ(a.pure, a.zipped_data,

  File "c:\users\user\desktop\python\loginandreg\venv\lib\site-packages\PyInstaller\building\api.py", line 98, in __init__

    self.__postinit__()

  File "c:\users\user\desktop\python\loginandreg\venv\lib\site-packages\PyInstaller\building\datastruct.py", line 158, in __postinit__

    self.assemble()

  File "c:\users\user\desktop\python\loginandreg\venv\lib\site-packages\PyInstaller\building\api.py", line 128, in assemble

    self.code_dict = {

  File "c:\users\user\desktop\python\loginandreg\venv\lib\site-packages\PyInstaller\building\api.py", line 129, in <dictcomp>

    key: strip_paths_in_code(code)

  File "c:\users\user\desktop\python\loginandreg\venv\lib\site-packages\PyInstaller\building\utils.py", line 652, in strip_paths_in_code

    consts = tuple(

  File "c:\users\user\desktop\python\loginandreg\venv\lib\site-packages\PyInstaller\building\utils.py", line 653, in <genexpr>

    strip_paths_in_code(const_co, new_filename)

  File "c:\users\user\desktop\python\loginandreg\venv\lib\site-packages\PyInstaller\building\utils.py", line 660, in strip_paths_in_code

    return code_func(co.co_argcount, co.co_kwonlyargcount, co.co_nlocals, co.co_stacksize,

TypeError: an integer is required (got type bytes)

[Amir Katz]

Happens to me as well when using Python 3.8.1. I created a new virtual environment with Python 3.7.4 and the packaging succeeds. Will later try to install/run the packaged app...