module 'collections' has no attribute 'mutablemapping'

Module ‘collections’ has no attribute ‘mutablemapping’

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In this article, we will discuss solutions in attributeerror: module ‘collections’ has no attribute ‘mutablemapping’.

We will also look at the causes, and briefly discuss this error.

Let’s get started!

What is module ‘collections’ has no attribute ‘mutablemapping’?

The AttributeError: module ‘collections’ has no attribute ‘MutableMapping’ error in python appears when MutableMapping class when is used in Python version 3.10.

Wherein apparently it has been moved from the collections module to collections.abc module.

These are a few reasons why this error happens:

  • Importing the MutableMapping class from the collections module in Python versions 3.10+.
  • When installing a module that imports the MutableMapping class from the collections module using Python versions 3.10+.

Since we’re using python 3.10+ here’s how this error occurs:

import collections

print(collections.MutableMapping)

Output:

module 'collections' has no attribute 'mutablemapping'
module ‘collections’ has no attribute ‘mutablemapping’

Solutions to fix Attributeerror: module ‘collections’ has no attribute ‘mutablemapping’

Here are the solutions you can try to fix the error Attributeerror: module ‘collections’ has no attribute ‘mutablemapping’. Choose what works for you.

  1. Upgrade Python packages to the latest versions

    If you see this error when running pip commands, then you can try to upgrade the built-in Python packages and see if it fixes the error.

    Run one of the following commands from the terminal:

    pip install –upgrade pip wheel setuptools requests

    Upgrade Python packages to the latest versions

    For pip3:
    pip3 install –upgrade pip wheel setuptools requests

    If pip is not in PATH:
    python -m pip install –upgrade pip wheel setuptools requests

    python3:
    python3 -m pip install –upgrade pip wheel setuptools requests

    Note: Outdated version of this package will trigger the error.

  2. Downgrade Python version to 3.9 or lower

    Downgrading python version to 3.9 or lower is another way since the error is specific to python 3.10 version.

    Apparently, all we need is to install the lower version successfully.

    It will replace the older python version. It means you do not have to explicitly uninstall the current python version.

  3. Change the import statement

    Actually, since the internal structure is changed in the 3.10 version so have to use two different ways for importing this mutablemapping module. Here is the syntax difference-

    For version 3.9 or lower –
    from collections import MutableMapping

    For version 3.10 or above –
    from collections.abc import MutableMapping

  4. Import statement to work for all Python versions

    This time if we would like to use import statement that will work in all python version, then we will use the import statement with try and except block.

    See how it works:

    try and catch

    The try statement in the code above will attempt to import from collections.abc module. Hence, the import causes an error the except block will attempt to import from the collections module rather.

Conclusion

In conclusion to fix the Attributeerror: module ‘collections’ has no attribute ‘mutablemapping’ error, we should try the following:

  1. Import the MutableMapping class from collections.abc, as a modification was made in Python 3.10.
  2. Update module versions having an old import statement.
  3. Alternatively, downgrade to Python 3.9 if you are incapable to make corrections.

We hope that this article has provided you with the information you need to fix this error and continue working with Python.

If you are finding solutions to some errors you’re encountering we also have Attributeerror: module ‘numpy’ has no attribute ‘bool’.

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