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How to Generate a Dependency Graph for Python Projects

This script walks through a Python project directory, parses each .py file's imports, and prints a dependency graph showing which modules depend on which other modules.

ast dependency graph import parsing

Python

import os
import ast
from pathlib import Path
from collections import defaultdict

def get_imports(filepath):
    with open(filepath) as f:
        try:
            tree = ast.parse(f.read())
        except SyntaxError:
            return []
    imports = []
    for node in ast.walk(tree):
        if isinstance(node, …

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Copy-ready Python snippets for learners and developers

PythonSkillset code samples are short, focused examples organised by topic and difficulty. Every snippet is server-rendered HTML — readable by search engines and easy to copy. Open any sample, read the notes, copy the code, then press Try in editor to run it in the browser with Pyodide.

How to use this library

Pick a topic section — strings, lists, files, functions, and more
Open a sample, read How it works, and copy the code block
Run it in the IDE, tweak values, then take a related quiz or tutorial lesson

Samples vs tutorials and challenges

Samples are quick reference — one concept per page. For step-by-step teaching, use our Python tutorials. To test yourself, try quizzes or coding challenges. Clean up style with the Python formatter.

Free online Python IDE Write and run Python in your browser — no install. Free Python code formatter Format with autopep8 — side-by-side PEP 8 cleanup.