modulegraph

library0.19.7pypypi✓ verified 90d ago

Python module dependency analysis tool that builds a directed graph of module dependencies. Current version 0.19.7, maintained by Ronald Oussoren. Releases are irregular, primarily as needed.

devops testing data

pip install modulegraph

github ↗package ↗docs ↗

INSTALL

IMPORT

SIG · MODULEGRAPH

modulegraph

devopspythonv0.19.7

Install

1.9s avg

Import

—

Disk

20MB

Pass rate

10/ 10

Env Coverage10 / 10

glibc

3.9–3.13

musl

3.9–3.13

Install & Compatibility

Where this runs

tested against v0.19.7 · pip install

no network on importno background threads

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

py 3.10–3.95 runs

installs and imports cleanly · install 0.0s · import 0.000s · 18.2MB

glibc

py 3.10–3.95 runs

installs and imports cleanly · install 1.9s · import 0.000s · 19MB

20MB installed

● package 20MB

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

modulegraph

✓ import modulegraph

The main module is importable directly.

ModuleGraph

✓ from modulegraph import ModuleGraph

✗ from modulegraph.modulegraph import ModuleGraph

Do not use the dotted path; simply import from modulegraph.

Analyze dependencies of a Python script.

from modulegraph import ModuleGraph g = ModuleGraph() g.run_script('example.py') for node in g.nodes(): print(node.identifier, node.filename)

Debug

Known issues

breakingIn modulegraph 0.18 and later, the internal node attributes changed. Accessing 'type' or 'filename' directly on a node may break if you relied on old values.

fix

Use node.identifier and node.filename (now always a str) instead of node.type or node.filename (could be None).

affects: >=0.18.0

deprecatedThe 'find_modules' method is deprecated in favor of 'run_script' and 'import_hook'.

fix

Replace calls to g.find_modules('script.py') with g.run_script('script.py').

affects: >=0.17.0

gotchaModuleGraph does not automatically re-analyze if the script's imports change. You must create a new graph instance for a fresh analysis.

fix

Always instantiate a new ModuleGraph() for each independent dependency analysis.

affects: all

Errors

Common errors & fixes

ModuleNotFoundError: No module named 'modulegraph'

Modulegraph not installed in the current Python environment.

fix

Run 'pip install modulegraph' in your environment.

AttributeError: 'ModuleGraph' object has no attribute 'find_modules'

Using deprecated API removed since version 0.18.

fix

Use 'run_script' instead: g.run_script('your_script.py').

TypeError: 'NoneType' object is not subscriptable (when accessing node.filename)

Node may not have a filename (e.g., built-in modules). In older versions, filename could be None.

fix

Check if node.filename is not None before using it, or use getattr(node, 'filename', '').

Upgrade

Version history

0.19.7latest on PyPI · released Nov 22, 2025

Audit

Dependencies

setuptoolsrequiredRequired for pkg_resources checks during dependency resolution

Agent activity

8 hits · last 30 days

node

Resources

githubhttp://github.com/ronaldoussoren/modulegraph ↗

packagehttps://pypi.org/project/modulegraph/ ↗

docshttps://modulegraph.readthedocs.io/en/latest/ ↗