Created
January 21, 2015 16:40
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Draft utility to figure out what are the primary dependencies of a Python package. Let's list modules that are imported in the code (ignore stdlib and internals).
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#!/usr/bin/env python | |
# -*- coding: UTF-8 -*- | |
"""Helps you maintain ``install_requires``.""" | |
#: List of modules in standard library. | |
#: See https://docs.python.org/3/py-modindex.html | |
PY3_MODULES = [ | |
'__future__', | |
'__main__', | |
'_dummy_thread', | |
'_thread', | |
'abc', | |
'aifc', | |
'argparse', | |
'array', | |
'ast', | |
'asynchat', | |
'asyncio', | |
'asyncore', | |
'atexit', | |
'audioop', | |
'base64', | |
'bdb', | |
'binascii', | |
'binhex', | |
'bisect', | |
'builtins', | |
'bz2', | |
'calendar', | |
'cgi', | |
'cgitb', | |
'chunk', | |
'cmath', | |
'cmd', | |
'code', | |
'codecs', | |
'codeop', | |
'collections', | |
'colorsys', | |
'compileall', | |
'concurrent', | |
'configparser', | |
'contextlib', | |
'copy', | |
'copyreg', | |
'cProfile', | |
'crypt', | |
'csv', | |
'ctypes', | |
'curses', | |
'datetime', | |
'dbm', | |
'decimal', | |
'difflib', | |
'dis', | |
'distutils', | |
'doctest', | |
'dummy_threading', | |
'email', | |
'encodings', | |
'ensurepip', | |
'enum', | |
'errno', | |
'faulthandler', | |
'fcntl', | |
'filecmp', | |
'fileinput', | |
'fnmatch', | |
'formatter', | |
'fpectl', | |
'fractions', | |
'ftplib', | |
'functools', | |
'gc', | |
'getopt', | |
'getpass', | |
'gettext', | |
'glob', | |
'grp', | |
'gzip', | |
'hashlib', | |
'heapq', | |
'hmac', | |
'html', | |
'http', | |
'imaplib', | |
'imghdr', | |
'imp', | |
'importlib', | |
'inspect', | |
'io', | |
'ipaddress', | |
'itertools', | |
'json', | |
'keyword', | |
'lib2to3', | |
'linecache', | |
'locale', | |
'logging', | |
'lzma', | |
'macpath', | |
'mailbox', | |
'mailcap', | |
'marshal', | |
'math', | |
'mimetypes', | |
'mmap', | |
'modulefinder', | |
'msilib', | |
'msvcrt', | |
'multiprocessing', | |
'netrc', | |
'nis', | |
'nntplib', | |
'numbers', | |
'operator', | |
'optparse', | |
'os', | |
'ossaudiodev', | |
'parser', | |
'pathlib', | |
'pdb', | |
'pickle', | |
'pickletools', | |
'pipes', | |
'pkgutil', | |
'platform', | |
'plistlib', | |
'poplib', | |
'posix', | |
'pprint', | |
'profile', | |
'pstats', | |
'pty', | |
'pwd', | |
'py_compile', | |
'pyclbr', | |
'pydoc', | |
'queue', | |
'quopri', | |
'random', | |
're', | |
'readline', | |
'reprlib', | |
'resource', | |
'rlcompleter', | |
'runpy', | |
'sched', | |
'select', | |
'selectors', | |
'shelve', | |
'shlex', | |
'shutil', | |
'signal', | |
'site', | |
'smtpd', | |
'smtplib', | |
'sndhdr', | |
'socket', | |
'socketserver', | |
'spwd', | |
'sqlite3', | |
'ssl', | |
'stat', | |
'statistics', | |
'string', | |
'stringprep', | |
'struct', | |
'subprocess', | |
'sunau', | |
'symbol', | |
'symtable', | |
'sys', | |
'sysconfig', | |
'syslog', | |
'tabnanny', | |
'tarfile', | |
'telnetlib', | |
'tempfile', | |
'termios', | |
'test', | |
'textwrap', | |
'threading', | |
'time', | |
'timeit', | |
'tkinter', | |
'token', | |
'tokenize', | |
'trace', | |
'traceback', | |
'tracemalloc', | |
'tty', | |
'turtle', | |
'turtledemo', | |
'types', | |
'unicodedata', | |
'unittest', | |
'urllib', | |
'uu', | |
'uuid', | |
'venv', | |
'warnings', | |
'wave', | |
'weakref', | |
'webbrowser', | |
'winreg', | |
'winsound', | |
'wsgiref', | |
'xdrlib', | |
'xml', | |
'xmlrpc', | |
'zipfile', | |
'zipimport', | |
'zlib', | |
] | |
#: List of modules in standard library. | |
#: See https://docs.python.org/2/py-modindex.html | |
PY2_MODULES = [ | |
'__builtin__', | |
'__future__', | |
'__main__', | |
'_winreg', | |
'abc', | |
'aepack', | |
'aetools', | |
'aetypes', | |
'aifc', | |
'al', | |
'AL', | |
'anydbm', | |
'applesingle', | |
'argparse', | |
'array', | |
'ast', | |
'asynchat', | |
'asyncore', | |
'atexit', | |
'audioop', | |
'autoGIL', | |
'base64', | |
'BaseHTTPServer', | |
'Bastion', | |
'bdb', | |
'binascii', | |
'binhex', | |
'bisect', | |
'bsddb', | |
'buildtools', | |
'bz2', | |
'calendar', | |
'Carbon', | |
'cd', | |
'cfmfile', | |
'cgi', | |
'CGIHTTPServer', | |
'cgitb', | |
'chunk', | |
'cmath', | |
'cmd', | |
'code', | |
'codecs', | |
'codeop', | |
'collections', | |
'ColorPicker', | |
'colorsys', | |
'commands', | |
'compileall', | |
'compiler', | |
'ConfigParser', | |
'contextlib', | |
'Cookie', | |
'cookielib', | |
'copy', | |
'copy_reg', | |
'cPickle', | |
'cProfile', | |
'crypt', | |
'cStringIO', | |
'csv', | |
'ctypes', | |
'curses', | |
'datetime', | |
'dbhash', | |
'dbm', | |
'decimal', | |
'DEVICE', | |
'difflib', | |
'dircache', | |
'dis', | |
'distutils', | |
'dl', | |
'doctest', | |
'DocXMLRPCServer', | |
'dumbdbm', | |
'dummy_thread', | |
'dummy_threading', | |
'EasyDialogs', | |
'email', | |
'encodings', | |
'ensurepip', | |
'errno', | |
'exceptions', | |
'fcntl', | |
'filecmp', | |
'fileinput', | |
'findertools', | |
'FL', | |
'fl', | |
'flp', | |
'fm', | |
'fnmatch', | |
'formatter', | |
'fpectl', | |
'fpformat', | |
'fractions', | |
'FrameWork', | |
'ftplib', | |
'functools', | |
'future_builtins ', | |
'gc', | |
'gdbm', | |
'gensuitemodule', | |
'getopt', | |
'getpass', | |
'gettext', | |
'gl', | |
'GL', | |
'glob', | |
'grp', | |
'gzip', | |
'hashlib', | |
'heapq', | |
'hmac', | |
'hotshot', | |
'htmlentitydefs', | |
'htmllib', | |
'HTMLParser', | |
'httplib', | |
'ic', | |
'icopen', | |
'imageop', | |
'imaplib', | |
'imgfile', | |
'imghdr', | |
'imp', | |
'importlib', | |
'imputil', | |
'inspect', | |
'io', | |
'itertools', | |
'jpeg', | |
'json', | |
'keyword', | |
'lib2to3', | |
'linecache', | |
'locale', | |
'logging', | |
'macerrors', | |
'MacOS', | |
'macostools', | |
'macpath', | |
'macresource', | |
'mailbox', | |
'mailcap', | |
'marshal', | |
'math', | |
'md5', | |
'mhlib', | |
'mimetools', | |
'mimetypes', | |
'MimeWriter', | |
'mimify', | |
'MiniAEFrame', | |
'mmap', | |
'modulefinder', | |
'msilib', | |
'msvcrt', | |
'multifile', | |
'multiprocessing', | |
'mutex', | |
'Nav', | |
'netrc', | |
'new', | |
'nis', | |
'nntplib', | |
'numbers', | |
'operator', | |
'optparse', | |
'os', | |
'ossaudiodev', | |
'parser', | |
'pdb', | |
'pickle', | |
'pickletools', | |
'pipes', | |
'PixMapWrapper', | |
'pkgutil', | |
'platform', | |
'plistlib', | |
'popen2', | |
'poplib', | |
'posix', | |
'posixfile', | |
'pprint', | |
'profile', | |
'pstats', | |
'pty', | |
'pwd', | |
'py_compile', | |
'pyclbr', | |
'pydoc', | |
'Queue', | |
'quopri', | |
'random', | |
're', | |
'readline', | |
'resource', | |
'rexec', | |
'rfc822', | |
'rlcompleter', | |
'robotparser', | |
'runpy', | |
'sched', | |
'ScrolledText', | |
'select', | |
'sets', | |
'sgmllib', | |
'sha', | |
'shelve', | |
'shlex', | |
'shutil', | |
'signal', | |
'SimpleHTTPServer', | |
'SimpleXMLRPCServer', | |
'site', | |
'smtpd', | |
'smtplib', | |
'sndhdr', | |
'socket', | |
'SocketServer', | |
'spwd', | |
'sqlite3', | |
'ssl', | |
'stat', | |
'statvfs', | |
'string', | |
'StringIO', | |
'stringprep', | |
'struct', | |
'subprocess', | |
'sunau', | |
'sunaudiodev', | |
'SUNAUDIODEV', | |
'symbol', | |
'symtable', | |
'sys', | |
'sysconfig', | |
'syslog', | |
'tabnanny', | |
'tarfile', | |
'telnetlib', | |
'tempfile', | |
'termios', | |
'test', | |
'textwrap', | |
'thread', | |
'threading', | |
'time', | |
'timeit', | |
'Tix', | |
'Tkinter', | |
'token', | |
'tokenize', | |
'trace', | |
'traceback', | |
'ttk', | |
'tty', | |
'turtle', | |
'types', | |
'unicodedata', | |
'unittest', | |
'urllib', | |
'urllib2', | |
'urlparse', | |
'user', | |
'UserDict', | |
'UserList', | |
'UserString', | |
'uu', | |
'uuid', | |
'videoreader', | |
'W', | |
'warnings', | |
'wave', | |
'weakref', | |
'webbrowser', | |
'whichdb', | |
'winsound', | |
'wsgiref', | |
'xdrlib', | |
'xml', | |
'xmlrpclib', | |
'zipfile', | |
'zipimport', | |
'zlib', | |
] | |
import argparse | |
import os | |
import re | |
IMPORT_REGEXP = re.compile(r'^[\s]*(from [\w._]+ |)import ([\w._, ]+)') | |
def is_dependency(module, root_module=None): | |
"""Return ``True`` if ``module`` implies external dependency.""" | |
if not module: | |
return False | |
if module.startswith('.'): | |
return False | |
if re.match(r'^{0}(\.\w+)?$'.format(root_module), module): | |
return False | |
if module in PY2_MODULES: | |
return False | |
return True | |
def root_module(module): | |
"""Return only root package in module name.""" | |
module = module.split(' ')[0] | |
parts = module.split('.') | |
return parts[0] | |
def modules_in_import_line(line): | |
"""Yield modules in import statement.""" | |
line = line.lstrip() | |
if line.startswith('import '): | |
line = line[len('import '):] | |
matches = re.findall(r'([\w._]+( as [\w_]+)?)', line) | |
for match in matches: | |
yield root_module(match[0]) | |
elif line.startswith('from '): | |
line = line[len('from '):] | |
match = re.match(r'([\w._]+)', line) | |
if match: | |
yield root_module(match.group(0)) | |
def imports_in_file(lines): | |
"""Yield import statements in ``lines``.""" | |
for line in lines: | |
match = re.match(IMPORT_REGEXP, line) | |
if match: | |
for module in modules_in_import_line(match.group(0)): | |
yield module | |
def python_files(path): | |
"""Yield path of Python scripts in path.""" | |
for (dirpath, dirnames, filenames) in os.walk(path): | |
for filename in filenames: | |
if filename.endswith('.py'): | |
yield dirpath + "/" + filename | |
def main(args=None): | |
parser = argparse.ArgumentParser( | |
description='Show source code dependencies.') | |
parser.add_argument( | |
'source', | |
type=str, | |
help='an integer for the accumulator') | |
args = parser.parse_args() | |
root_module = os.path.basename(args.source) | |
root_path = args.source | |
modules = set() | |
for filename in python_files(root_path): | |
with open(filename) as lines: | |
for module in imports_in_file(lines): | |
modules.add(module) | |
for module in sorted(modules): | |
if is_dependency(module, root_module): | |
print module | |
if __name__ == '__main__': | |
main() |
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