Windows .exe created with cx_Freeze returns 0xc000007b error

Question

I created a small script to test cx_Freeze, shown below:

sqrt.py:

import math
sqrt = math.sqrt
x = float(input('Enter a number:'))
y = sqrt(x)
print(y)
input('Press ENTER to exit')

I also created a setup script:

setup.py:

from cx_Freeze import setup, Executable

setup(  name = "sqrt",
        version = "0.1",
        description = "Testing",
        # options = {"build_exe": build_exe_options},
        executables = [Executable("sqrt.py")])

Next, I launch Windows cmd.exe in the folder where python.exe, sqrt.py and setup.py are located and enter:

path\python.exe setup.py build

As it should, this creates a build directory, which contains amongst others a sqrt.exe. When I attempt to execute this, it returns

"The application was unable to start correctly (0xc000007b). Click OK to close the application."

For as far as I understand the cx_Freeze documentation, this should work. Ditto for various YouTube tutorials I've watched.

I'm running Windows10 64x, Python 3.5 and cx_freeze 5.0.

Have you seen this related question? http://stackoverflow.com/questions/20650596/cannot-open-python-error-0xc000007b — Sabuncu, Jan 21 '17 at 11:02

guettli · Accepted Answer · 2019-03-07T11:35:40.683

You can load the exe file created with cx_freeze with dependencywalker.

It will show you what's wrong.

Maybe you are missing a library like Microsoft Visual C++ Redistributable Package or you mix 32 and 64 bit architecture.

The tool will show what's wrong.

Update: I had this issue while I tried to get gtk running on windows. There were any strange things. I switched from gtk to pyside2 (QT) and things are much easier now.

Windows .exe created with cx_Freeze returns 0xc000007b error

1 Answers1