modulenotfounderror no module named 'dateutil'

Modulenotfounderror: no module named ‘python-dateutil’

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The modulenotfounderror: no module named dateutil occurs because the python interpreter cannot find the installed dateutil module in the path environment.

Furthermore, the error modulenotfounderror no module named dateutil will occur if you do not install the python-dateutil before you are trying to import it.

On the other hand, the module python-dateutil is installed yet the module is installed in the wrong path environment.

Also read the other resolved error: Modulenotfounderror: no module named ‘configparser’ [SOLVED]

What is python-dateutil?

The Python-dateutil is a Python library that provides useful extensions to the standard datetime module.

It allows you to easily perform multiple date and time operations like parsing, formatting, and arithmetic on datetime objects.

What is the usage of Python-dateutil?

The Python-dateutil is a useful library in using dates and times in Python, especially when dealing with complex date and time calculations or parsing of non-standard date and time formats.

What are the cause of the error no module named ‘dateutil’?

The error message “no module named ‘dateutil‘” usually occurs if the Python interpreter is unable to find and import the python-dateutil library in your project.

Here are the multiple reasons why this error occurs:

  • The python-dateutil module is not installed on your system.
  • The python-dateutil module is installed in a different environment or virtual environment than the one you are currently using.
  • The path to the python-dateutil library is not included in the PYTHONPATH environment variable.
  • There is a typo or misspelling in the import statement for the python-dateutil library.

How to solve the error modulenotfounderror: no module named dateutil?

Time needed: 3 minutes

Here are the solutions to solve the error modulenotfounderror: no module named dateutil in a different operating system.

  • Solution 1: Install the module python-dateutil in windows

    Open your terminal windows or command prompt in your project’s root directory and install the following command:

    pip install python-dateutil

    After you run the above command it will install and download the package module in your python environment.

    install python dateutil for Modulenotfounderror no module named 'python-dateutil'

    For Python3:
    The following command to install the python-dateutil in python 3:

    pip3 install python-dateutil

    After you run the above command it will install and download the package module in your python3 environment.
    install python3 dateutil for Modulenotfounderror no module named 'python-dateutil'

    When you get the permissions error:
    This is the following command to install python-dateutil for getting the permissions error

    pip install python-dateutil --user

    After you run the above command it will install and download the package module in your python server environment.

    install error python dateutil for Modulenotfounderror no module named 'python-dateutil'

    If the pip does not set up in your PATH environment variable, you need to try one of the python -m pip commands.

    python -m pip install python-dateutil

    After you run the above command it will install and download the package module in your python environment.

    install -m python dateutil for Modulenotfounderror no module named 'python-dateutil'

    For python3:
    This is the command to install for python 3:

    python3 -m pip install python-dateutil

    For Py Alias (Windows)
    This is the command to install for py alias:

    py -m pip install python-dateutil

    After you run the above command it will install and download the package module in your python environment.

    install py python dateutil for Modulenotfounderror no module named 'python-dateutil'

  • Solution 2: Install the module python-dateutil in Anaconda

    Here is the following command to install the module python-dateutil in Anaconda:

    conda install -c anaconda python-dateutil

    After you run the above command it will install and download the package module in your python anaconda environment.

    install anaconda python dateutil for Modulenotfounderror no module named 'python-dateutil'

  • Solution 3: Install the module python-dateutil in Jupyter Notebook

    The following command to install module python-dateutil in Jupyter Notebook:

    !pip install python-dateutil

Let’s have a look at the example below on how to import the dateutil in your main.py

from dateutil.parser import parse, parserinfo

class CustomParserInfo(parserinfo):
    AMPM = [("ab", "cb", "dc"), ("rn", "x")]

print(parse('2023-03-08 12:09:30 XM', parserinfo=CustomParserInfo()))

Check the module if it is installed 

Try to check if you installed module python-dateutil successfully by executing the command: 

pip show python-dateutil

After you run the command above, it will show the package is not installed.

If it is installed it will show an information about the package.

It is include the location where the package is installed.

pip show Modulenotfounderror: no module named 'python-dateutil'

Conclusion

In conclusion, following the steps above will help you to resolve the “ModuleNotFoundError: No module named ‘dateutil’” error.

You can use the python-dateutil library in your Python code.

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