How do I measure code coverage in Python?

Measuring code coverage in Python is essential for ensuring that your tests are adequately covering your codebase. One of the most popular tools for measuring code coverage in Python is the `coverage` module. This tool allows you to see which parts of your code are executed during tests, helping you identify areas that may need additional test cases.

To measure code coverage in your Python projects, follow these steps:

  1. Install the `coverage` tool if you haven't already:
  2. pip install coverage
  3. Run your tests with coverage:
  4. coverage run -m unittest discover
  5. Generate a coverage report:
  6. coverage report
  7. Optionally, generate an HTML report for better visualization:
  8. coverage html

This process will help you assess which lines of code are not covered by your tests and improve the quality of your codebase.


Python code coverage coverage module testing unittest