matplotlib - module 'sip' has no attribute 'setapi'

Question

I just set up the VS Code with all the Python extensions. Python version is 3.8.3 through Anaconda. The interpreter is venv. When I run this code

import matplotlib.pyplot as plt

An error shows -

Exception has occurred: AttributeError
module 'sip' has no attribute 'setapi'
  File "C:\test.py", line 145, in <module>
    import matplotlib.pyplot as plt

I've tried uninstalling and reinstalling matplotlib, but to no avail.

Pandanus

Answer 1

There seems to be an incompatibility issue using Matplotlib version 3.3 with IPython. For now, you can fix it by installing Matplotlib 3.2.

Disenfranchise

Thanks for the suggestion. According to another post, the Anaconda distribution does not include support for Python 3.2 https://mcmap.net/q/584706/-python-3-2-in-anaconda – Pandanus

I meant Matplotlib version 3.2 not Python 3.2. I edited the answer to clear that up. – Disenfranchise

for me matplotlib==3.3.4, downgrade the matplotlib to 3.2, it worked – Tether

For reference, I also get this issue on VSCode, but when using Spyder in the same anaconda environment %matplotlib qt5 works fine. So it's not a pure ipython issue, but something in the way ipython and VSCode work together. – Assortment

Answer 2

This worked for me.

python -m pip install matplotlib==3.2

Whitman

i found the same issue. this was due to the different version. This solved my issue. Thanks @nuno – Coessential

Answer 3

I had the same problem. I was using PyCharm. Installing PyQt5 worked for me.

Larval

pip install PyQt5 - worked for me. Win10. Matplotlib 3.4.1, Py 3.8.5. – Works

Answer 4

I also had the same issue, and none of the above answers worked for me. After some trial and error, it seems that pyqt and qt were causing my issues. I know you are using venv, but if you don't mind using Anaconda, the following environment should work for you:

conda create -n matplotlib python==3.8.3 matplotlib==3.3.4 pyqt==5.9.2 qt==5.9.7

I tested this solution on python==3.8.3 and python==3.7.10 using Windows 10.

Mccaleb

Answer 5

PySide2 is the official Qt (v5) for Python package which is officially supported by the Qt Company.

Install this module when using matplotlib and Jupyter/IPython

pip install pyside2

There is also PySide6 which is the package for Qt (v6)

Don't ask me why pyside2 is for qt5...

Aerodonetics

Answer 6

I reinstalled matplotlib to the latest version and it came out fine.

pip uninstall matplotlib
pip install matplotlib

This upgrades the matplotlib version from 3.3.4 to 3.4.2.

*I'm using python 3.7.6, windows, in a virtual environment.

Malemute