snakefood

Python dependency grapher

Description

Generate dependency graphs from Python code. This dependency tracker package has a few distinguishing characteristics:

* It uses the AST to parse the Python files. This is very reliable,

it always runs.

* No module is loaded. Loading modules to figure out dependencies is

almost always problem, because a lot of codebases run

initialization code in the global namespace, which often requires

additional setup. Snakefood is guaranteed not to have this problem

(it just runs, no matter what).

* It works on a set of files, i.e. you do not have to specify a

single script, you can select a directory (package or else) or a

set of files. It finds all the Python files recursively

automatically.

* Automatic/no configuration: your PYTHONPATH is automatically

adjusted to include the required package roots. It figures out the

paths that are required from the files/directories given as

input. You should not have to setup ANYTHING.

* It does not have to automatically 'follow' dependencies between

modules, i.e. by default it only considers the files and

directories you specify on the command-line and their immediate

dependencies. It also has an option to automatically include only

the dependencies within the packages of the files you specify.

* It follows the UNIX philosophy of small programs that do one thing

well: it consists of a few simple programs whose outputs you

combine via pipes.

This package will install the following programs:

* sfood - detect import statements using the AST parser

* sfood-checker - check for superfluous import statements in Python source

code

* sfood-cluster - read snakefood dependencies from stdin and cluster according

to filenames

* sfood-copy - read a snakefood dependencies file and flatten and output the

list of all files

* sfood-flatten - read a snakefood dependencies file and flatten and output

the list of all files

* sfood-graph - read snakefood dependencies and output a visual graph

* sfood-imports - parse Python files and output a unified list of imported

symbols

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