List names of all imports in all Python files given on command line.

getimports.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""List names of all imports in all Python files given on command line."""

import sys
import ast


NODE_TYPES = (ast.Import, ast.ImportFrom)


def get_imports(source):
    tree = ast.parse(source)

    for node in ast.walk(tree):
        if isinstance(node, NODE_TYPES):
            lineno = getattr(node, 'lineno', None)
            if isinstance(node, ast.Import):
                mods = [a.name for a in node.names]
            else:
                mods = [node.module]
            yield (lineno, node, mods)

if __name__ == '__main__':
    for fn in sys.argv[1:]:
        with open(fn) as fp:
            try:
                for lineno, node, mods in get_imports(fp.read()):
                    print("{}:{}:{}".format(fn, lineno, ", ".join(mods)))
            except:
                print("Could not parse '{}'.".format(fn))
                import traceback
                traceback.print_exc()