Is there a way to make an executable file that runs a python file in which a different python file is executed?

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I have a big python project which I'm currently developing, and I want to make a .exe file that launches the main.py file. I have a file called ultimate_launcher.py which has the following code:

exec(open("main.py").read())

That is a solution I found somewhere on Stack Overflow. it runs fine as a .py file, but when I use pyinstaller to convert it to a .exe, it has a "Fatal" error,

Failed to execute script ultimate_launcher

I don't want the rest of my project to be put into the .exe as I am still in the process of development. So my question is how do I make a .exe that ONLY references the file main.py so when it gets updated, i don't have to remake the .exe file.

py

pyinstaller exe python
1 Answers

I believe there is a method to achieve this detailed in this thread:

Python - create an EXE that runs code as written, not as it was when compiled

EDIT: This works

import subprocess
f = open("c:\\temp\\temp.py", "w")
f.write(open("main.py").read())
f.close()
subprocess.call("\"C:\\Program Files (x86)\\Microsoft Visual Studio\\Shared\\Python37_64\\Scripts\\pyinstaller.exe\" --distpath \"c:\\temp\" c:\\temp\\temp.py " )
subprocess.call("C:\\temp\\temp\\temp.exe")
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