Creating a standalone python executable with pywin32 and missed required module

Question

I'm going to create a standalone python executable that rely on a python interpreter on windows (I don't want to create an exe file).
So, I'm used this helpful article:
https://n8henrie.com/2022/08/easily-create-almost-standalone-python-executables-with-the-builtin-zipapp-module/#google_vignette
My script python uses pywin32 for converting word to pdf,
After running this command:
> python -m pip install -t myapp pywin32
I tried to test working of the standalone script on myapp directory. so I ran:
> python .\myapp\main.py
And I get this error:
Traceback (most recent call last): File "D:\Parsa Projects\Python-PDF\myapp\main.py", line 3, in <module> import win32com.client File "D:\Parsa Projects\Python-PDF\myapp\win32com\__init__.py", line 8, in <module> import pythoncom File "D:\Parsa Projects\Python-PDF\myapp\pythoncom.py", line 2, in <module> import pywintypes ModuleNotFoundError: No module named 'pywintypes'

I searched about the problem and I found installing pypiwin32 solves the problem, so I Installed it on the myapp directory, but it not solved the problem.
Can anyone help me?
What I can do?
This is my python code:

import argparse
import pathlib
import win32com.client
import os

def convert_word_to_pdf(word_file_path, pdf_file_path):
    if not os.path.exists(word_file_path):
        raise FileNotFoundError(f"The file {word_file_path} does not exist.")
    word = win32com.client.Dispatch('Word.Application')
    word.Visible = False

    try:
        doc = word.Documents.Open(word_file_path)
        doc.SaveAs(pdf_file_path, FileFormat=17)
        doc.Close()
    except Exception as e:
        print(f"An error occurred: {e}")
    finally:
        word.Quit()

def main():
    filepath = os.path.abspath('D:\\Parsa Projects\\Python-PDF\\file-sample_100kB.docx')
    print(filepath)
    # pdf_path = pathlib.Path('./file-sample_100kB.pdf').absolute()
    pdf_path = os.path.abspath('D:\\Parsa Projects\\Python-PDF\\file-sample_100kB.pdf')
    convert_word_to_pdf(filepath, pdf_path)
    # parser = argparse.ArgumentParser("Arguments")

    # if os.environ.get("MY_ENV_VAR") is not None:
    #     parser.add_argument("--my-env-var", required=True, action="store_true")
    
    # if os.environ.get("MY_ENV_VAR2") is not None:
    #     parser.add_argument("--my-env-var2", required=True, action="store_true")
    
    # parser.parse_args()
if __name__ == "__main__":
    # main()
    # exit()
    # doc_path = pathlib.Path('./file-sample_100kB.docx').absolute()
    filepath = os.path.abspath('D:\\Parsa Projects\\Python-PDF\\file-sample_100kB.docx')
    print(filepath)
    # pdf_path = pathlib.Path('./file-sample_100kB.pdf').absolute()
    pdf_path = os.path.abspath('D:\\Parsa Projects\\Python-PDF\\file-sample_100kB.pdf')
    convert_word_to_pdf(filepath, pdf_path)

For making the standalone python package, On this my directory D:\Parsa Projects\Python-PDF I opened cmd and ran:

> mkdir myapp
> xcopy /f /y main.py .\myapp\main.py
> python -m pip install -t myapp pywin32 pypiwin32
> python -m zipapp -p "C:\Users\Parsa\AppData\Local\Programs\Python\Python312\python.exe" -m main:main -c -o myapps myapp

If you first cd myapp then call python main.py does it work? — sytech
– sytech, Commented Sep 3, 2024 at 19:36
@sytech, At first I had installed pywin32 with pip on my pc and yes it worked, but for testing this standalone packge I uninstalled pywin32 from my pc then I tried again and that raised this error : ModuleNotFoundError: No module named 'pywintypes' — Parsa Saei
– Parsa Saei, Commented Sep 3, 2024 at 19:44
Tried it myself--the issue is that for some reason, the python importer can't find the pywin32 package when it's installed in the local directory. (If you install a different package to /appdir and import it at the top of your main.py and run it, it works as expected). Unfortunately I can't tell at a glance what the issue is--I know that pywin32 is indeed a strange package. I think it would take searching through the documentation of the python path based finder to understand why the package is not being found. — ryyyn
– ryyyn, Commented Sep 3, 2024 at 20:16
If you want to rephrase your question to make it more accurate, I would title it "python importer can't find the pywin32 package when it's installed to local directory". The MRE (minimum reproducible example) is: 1) Create a folder /myapp 2) Execute pip install -t myapp pywin32 3) Create /myapp/main.py with a single line import pywin32 4) Run main.py and get the error — ryyyn
– ryyyn, Commented Sep 3, 2024 at 20:22

Parsa Saei · Accepted Answer · 2024-12-03 08:33:35Z

I found my issue was related to some metrics, like the library must supports some features and local paths must add to sys.path at the top of codes.
So:
1 - I replaced pywin32 package with comtypes package, to can support the program for multiplatform and not consist to the os versions.
2 - Add the local paths and package address to sys.path:

import os

# SYS Import Local Packages Installed
path = os.path.realpath(os.path.abspath(__file__))
sys.path.insert(0, os.path.dirname(os.path.dirname(path)))
sys.path.append(os.path.join(os.path.dirname(__file__),"."))
sys.path.append(os.path.join(os.path.dirname(__file__),"packages"))
# from packages import comtypes
from packages.comtypes import client

3 - Run this command with administrator access:


> python -m zipapp -p "C:\Users\Parsa\AppData\Local\Programs\Python\Python312\python.exe" -m
main:main -c -o myapps myapp

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