Python Requirements Generator
Build a requirements.txt file from package names and version constraints.
Add your packages and version constraints - this tool generates a clean requirements.txt file.
Prefer pinning exact versions (==) for reproducible deployments, and looser constraints (>=, ~=) for libraries meant to be flexible for consumers.
What Is requirements.txt?
A requirements.txt file lists the Python packages (and optionally version constraints) a project depends on, installed with pip install -r requirements.txt.
Why Use This Tool?
Manually keeping a requirements file properly formatted and alphabetized across a growing dependency list gets tedious - this tool assembles a clean, consistent file from your package list.
How to Use It
- Add each package name and its version constraint (e.g.
==2.31.0,>=1.0, or leave blank for unpinned). - Copy the generated requirements.txt content.
Limitations
This generates the requirements file text only - it does not verify that a package name actually exists on PyPI or that the specified version is real; see the Python Package Name Checker for basic name-syntax validation.