How to resolve ModuleNotFoundError: No module named 'srsly.msgpack.util' in PyInstaller?

Question

I am trying to convert a python script to.exe using PyInstaller. The script is converted to an exe without any error logs.

However while running the.exe file am getting ModuleNotFoundError: No module named 'srsly.msgpack.util'

The issue is occurring while opening the exe files generated both by PyInstaller and cx_Freeze. The Screenshot of the error is attached here.

Have tried updating, un-install and re-installing of packages, but still the issue persists.

Versions:

• Python: 3.7
• OS: Windows 10
• cx_Freeze: 6.0
• msgpack: 0.6.2
• PyInstaller: 3.5
• srsly: 0.1.0

Answer 1

When PyInstaller evaluated your script, it did not predict the dependency on srsly.msgpack.util. You can manually specify dependencies using --hiddenimport .

    pyinstaller --hiddenimport srsly.msgpack.util your_script.py

You may find that fixing this problem just reveals another. You can add as many --hiddenimport hints as you need.

Answer 2

The issue is mentioned here: https://pypi.python.org/pypi/msgpack/0.5.1

When upgrading from msgpack-0.4 or earlier, don't do pip install -U msgpack-python. Do pip uninstall msgpack-python; pip install msgpack instead.