ye / pydepgraph

A dependencies analyzer for Python

pydepgraph - A dependencies analyzer for Python

Introduction

pydepgraph is a stand-alone program that analyzes one or more tree of Python sources to find dependencies amongst the files, and output a DOT file, suitable to be displayed or converted to an image.

Usage

From the command line help.

usage: pydepgraph [-h] [-p PATH] [-e EXCLUDE] [-c CLUSTERS] [-r] [-g GRAPH]
                  [-C]

Draw the dependency graph of a Python project.

optional arguments:
  -h, --help            show this help message and exit
  -p PATH, --path PATH  comma separated list of paths to include
  -e EXCLUDE, --exclude EXCLUDE
                        comma separated list of paths to exclude
  -c CLUSTERS, --clusters CLUSTERS
                        comma separated list of clusters
  -r, --no-recursive    do not descend into subdirectories
  -g GRAPH, --graph GRAPH
                        type of graph: 0 (without clusters), 1 (with
                        clusters), 2 (only clusters), 3 (only clusters,
                        drawing also self edges
  -C, --concentrate     merge common path of different edges

It is important to notice that the paths specified with the -p switch must be the root of the source tree, in order to let pydepgraph recognize correctly the dependencies. For example, if you want that the instruction

import tornado.ioloop

is correctly assessed as an edge to tornado/ioloop.py, you need to specify the parent directory of tornado (i.e., the grandparent of ioloop.py) in the path list. In future versions this limitation could be removed to allow sub-project inspections.

References

A small tutorial can be found at [1].

[1] http://poisson.phc.unipi.it/~maggiolo/index.php/2012/02/pydepgraph-a-dependencies-analyzer-for-python/