Python Dependency Scanner

What is Python Dependency Scanner?

The Python Dependency Scanner is an essential tool for developers who need to quickly identify and list all the external libraries used in their Python projects. Whether you're preparing a project for deployment, conducting code audits, or simply need to understand your project's dependencies, this scanner automatically parses Python source files to extract import statements and generate accurate requirements files.

This comprehensive analysis tool goes beyond simple import detection by mapping import aliases to their correct PyPI package names. It handles both standard imports (import os) and from-style imports (from flask import Flask), automatically excluding Python's built-in modules to focus only on third-party packages that need to be installed via pip or other package managers.

How to use Python Dependency Scanner

1. Upload Python files - Drag and drop one or multiple .py files into the upload area
2. Process imports - Click the scan button to analyze all import statements
3. Get clean requirements - Download the generated requirements.txt with all external dependencies

Key Features

• Smart dependency detection - Recognizes both import and from-style import statements
• PyPI package mapping - Automatically maps common aliases (cv2→opencv-python, bs4→beautifulsoup4)
• Built-in exclusion - Filters out Python standard library modules automatically
• Batch processing - Analyze multiple files simultaneously
• Standards compatible - Generates pip-installable requirements.txt format
• Bootstrap support - Compatible with pip, conda, and other Python package managers

Frequently Asked Questions

How does it distinguish between built-in and third-party packages?
The scanner maintains an internal list of Python's standard library modules (os, sys, json, datetime, etc.) and automatically excludes them. Only packages that require installation via pip are included in the final requirements list.