Trouble installing packages in Python - ... is in an unsupported or invalid wheel

Question

Hi I am trying to install win10toast and I get this message:

I had this error when I tried to download pywin32 previously, but why is this error popping up whenever I try to install any other package? I used to be able to install packages fine before with the same command

Answer 1

pywin32 is listed as a requirement for the package win10toast ( link ). So, when you are installing win10toast , pip also tries to install pywin32 which gives you an error.

From the looks of it, you are using a python 3.6 and a 32-bit system, both of which are supported by the latest release (pywin32 302). To resolve the pywin32 error, you could try the following.

• Option 1: Considering there are multiple installs and python3 is mapped to python 3.6 installation. (You can check that using python --version )

  • Install using python3 -m pip install pypiwin32

• Option 2: Download the binary files and install - https://github.com/mhammond/pywin32/releases/tag/b302

  • Download the appropriate exe and install

• Option 3: Download the source files and build:

  • Download the zip file from: https://github.com/mhammond/pywin32/releases/tag/b302
  • Unzip the file
  • Use the command python setup.py install