[已解决]matplotlib

陶远航

The error message you're seeing indicates that the Python module kiwisolver._cext is not found. kiwisolver is a dependency for matplotlib, which is why you're seeing this error when you try to import matplotlib.

Here are a few steps you can take to resolve this issue:

1. Reinstall kiwisolver: Sometimes, dependencies can become corrupted or improperly installed. You can try reinstalling kiwisolver using pip:

1. pip uninstall kiwisolver
   
2. pip install kiwisolver
   

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2. Upgrade kiwisolver: If reinstalling doesn't work, you might be using an outdated version of kiwisolver that's incompatible with your version of matplotlib. You can upgrade kiwisolver using pip:

1. pip install --upgrade kiwisolver
   

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3. Reinstall matplotlib: If the above steps don't work, you can try reinstalling matplotlib:

1. pip uninstall matplotlib
   
2. pip install matplotlib
   

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4. Check your Python version: Make sure you're using a version of Python that's compatible with your versions of matplotlib and kiwisolver. You can check your Python version by running python --version in your command line.

5. Use a virtual environment: If none of the above steps work, it's possible that there's some issue with your Python environment. You can try creating a new virtual environment and installing your dependencies there:

1. python -m venv env
   
2. source env/bin/activate  # On Windows, use [b]env\\Scripts\\activate[/b]
   
3. pip install matplotlib
   

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Remember to run these commands in your command prompt or terminal, and not in the Python interpreter. If you're using a Jupyter notebook, you can run these commands in a code cell by prefixing them with an exclamation mark, like !pip install matplotlib.
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