Unable to create standalone py.exe for python 3.9

[PriyanshuChandel]

Hi,
I'm very new in python and trying to create a standalone py.exe for python 3.9, somehow, I'm unable to achieve this.
Could you please help me to achieve this?
getting below error

Traceback (most recent call last):
  File "C:\Python39\lib\runpy.py", line 197, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "C:\Python39\lib\runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "C:\Python39\lib\site-packages\PyInstaller\__main__.py", line 118, in <module>
    run()
  File "C:\Python39\lib\site-packages\PyInstaller\__main__.py", line 111, in run
    run_build(pyi_config, spec_file, **vars(args))
  File "C:\Python39\lib\site-packages\PyInstaller\__main__.py", line 63, in run_build
    PyInstaller.building.build_main.main(pyi_config, spec_file, **kwargs)
  File "C:\Python39\lib\site-packages\PyInstaller\building\build_main.py", line 838, in main
    build(specfile, kw.get('distpath'), kw.get('workpath'), kw.get('clean_build'))
  File "C:\Python39\lib\site-packages\PyInstaller\building\build_main.py", line 784, in build
    exec(text, spec_namespace)
  File "<string>", line 18, in <module>
  File "C:\Python39\lib\site-packages\PyInstaller\building\api.py", line 98, in __init__
    self.__postinit__()
  File "C:\Python39\lib\site-packages\PyInstaller\building\datastruct.py", line 158, in __postinit__
    self.assemble()
  File "C:\Python39\lib\site-packages\PyInstaller\building\api.py", line 128, in assemble
    self.code_dict = {
  File "C:\Python39\lib\site-packages\PyInstaller\building\api.py", line 129, in <dictcomp>
    key: strip_paths_in_code(code)
  File "C:\Python39\lib\site-packages\PyInstaller\building\utils.py", line 654, in strip_paths_in_code
    consts = tuple(
  File "C:\Python39\lib\site-packages\PyInstaller\building\utils.py", line 655, in <genexpr>
    strip_paths_in_code(const_co, new_filename)
  File "C:\Python39\lib\site-packages\PyInstaller\building\utils.py", line 654, in strip_paths_in_code
    consts = tuple(
  File "C:\Python39\lib\site-packages\PyInstaller\building\utils.py", line 655, in <genexpr>
    strip_paths_in_code(const_co, new_filename)
  File "C:\Python39\lib\site-packages\PyInstaller\building\utils.py", line 662, 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)
Command exited with code 1

Thanks