Modulenotfounderror: no module named statsmodels [SOLVED]

In this article, we will show you how to solve the error modulenotfounderror: no module named statsmodels.

It is an error in Python that some developers can’t avoid encountering while trying to run code in Python.

When does this error occur?

This error occurs when you try to import the statsmodels library and it is not installed on your system.

How to solve “no module named statsmodels” in Python

Tip:

If you’ve already installed a statsmodels library in your system and you encounter this error, try to upgrade it or the pip as it may be an outdated version.

• To upgrade the pip, enter the following command:

  pip install –upgrade pip
  
  The command pip install --upgrade pip will upgrade the pip package manager to its latest version.

  However, if your pip is already in the latest version, this will come out: “Requirement already satisfied.”

  Now, once the pip is upgraded, try to install the statsmodels library again.

• To upgrade the statsmodels library, input the following command:

  pip install –upgrade statsmodels
  
  The command pip install –upgrade statsmodels will upgrade the statsmodels library to its latest version.

  However, if your statsmodels library is already in the latest version, this will come out: “Requirement already satisfied.”

Note: If you get an error message stating that “pip” cannot be found, use the command python -m.

It will look like this:

python -m pip install statsmodels

Other commands that you might need

1. python –version – use this command if you want to check the version of your Python.
2. pip show statsmodels – use this command to display the information of the statsmodels library, including its location.

Note:

1. Use the command pip3 install statsmodels to install the statsmodelspython package when you are using Python 3.
2. Use the command !pip install statsmodels to install the statsmodelspython package when you are using Jupyter Notebook.
3. Use the command py -m pip install statsmodels to install the statsmodelspython package when you are using py alias (Windows).

Diagnostic checklist for “No module named ‘statsmodels'”

• Verify pip install target. Run pip show statsmodels — if not installed, run pip install statsmodels.
• Check the active Python interpreter. which python (mac/Linux) or where python (Windows). Both pip and python must point to the same environment.
• Check virtual environment activation. If you use venv/conda, activate before installing: source .venv/bin/activate.
• Rule out uppercase/lowercase. Python imports are case-sensitive: import PyPDF2 not import pypdf2.
• Rule out the pip-vs-package-name mismatch. Some packages install under a different name than you import (e.g. pip install beautifulsoup4 → import bs4).

Installing statsmodels

# Standard pip install
pip install statsmodels

# In a virtual environment (recommended)
python -m venv .venv
source .venv/bin/activate  # or .venv\Scripts\activate on Windows
pip install statsmodels

# With uv (faster alternative)
uv pip install statsmodels

Common causes for “No module named ‘statsmodels'”

• Python interpreter mismatch. Multiple Python installations can confuse pip. Verify with which python and which pip.
• Virtual environment not activated. If the venv isn’t activated, pip installs to your system Python instead.
• Notebook kernel mismatch. Jupyter uses a kernel that may differ from your terminal Python. Use %pip install statsmodels inside the notebook.
• Import name differs from install name. pip install beautifulsoup4 → import bs4. Check the package’s PyPI page.
• Windows PATH issues. Ensure Python is on PATH; use python -m pip install to invoke pip via the correct Python.

Working code example

# Verify install worked
import statsmodels
print(getattr(statsmodels, '__version__', 'no version attribute'))

Best practices

• Always use a virtual environment. Avoids most module-not-found errors.
• Use pip freeze to lock versions. pip freeze > requirements.txt makes your setup reproducible.
• Consider uv or Poetry. Modern package managers with better dep resolution and reproducibility.

Conclusion

In conclusion, the error modulenotfounderror: no module named statsmodels can be easily solved by:

“Checking if the statsmodels library is installed in your Python environment and, if not, by installing it.”

By following the guide above, there’s no doubt that you’ll be able to resolve this error quickly.

I think we are done with our tutorial, IT source coders!

Thank you for reading!

Elijah Galero

Programmer & Technical Writer at PIES IT Solution

Elijah Galero is a programmer and writer at PIES IT Solution, author of 175+ tutorials at itsourcecode.com. Specializes in Python error debugging (AttributeError, TypeError, ModuleNotFoundError), Python programming tutorials, and Microsoft Excel how-to guides for BSIT students and productivity learners.

Expertise: Python · Python Errors · Python AttributeError · Python TypeError · ModuleNotFoundError · MS Excel · MS PowerPoint
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