deptry is a command line tool to check for issues with dependencies in a Python project, such as obsolete or missing dependencies. It supports the following types of projects:
- Projects that use Poetry and a corresponding pyproject.toml file
- Projects that use a requirements.txt file according to the pip standards
Dependency issues are detected by scanning for imported modules within all Python files in a directory and its subdirectories, and comparing those to the dependencies listed in the project's requirements.
deptry can be added to your project with
poetry add --group dev deptry
pip install deptry
When using pip to install deptry, make sure you install it within the virtual environment of your project. Installing deptry globally will not work, since it needs to have access to the metadata of the packages in the virtual environment.
deptry should be run withing the root directory of the project to be scanned, and the proejct should be running in its own dedicated virtual environment.
To scan your project for dependency issues, run
deptry can be configured by using additional command line arguments, or
by adding a
[tool.deptry] section in pyproject.toml. For more information, see Usage and Configuration