Gets the mingw-builds archive URL

mingw-build.py

#!/usr/bin/python
# encoding: UTF-8

try:
  import urllib.request as urlrequest
except ImportError:
  import urllib as urlrequest

def get_mingw_versions(repo_url = 'http://downloads.sourceforge.net/project/'
    'mingwbuilds/host-windows/repository.txt'):
  try:
    socket = urlrequest.urlopen(repo_url)
    repo = socket.read().decode()
  finally:
    socket.close()
  versions = {}
  for entry in repo.split('\n')[:-1]:
    value = entry.split('|')
    version = versions.setdefault(value[0].strip(), {})
    arch = version.setdefault(value[1].strip(), {})
    threading = arch.setdefault(value[2].strip(), {})
    exceptions = threading.setdefault(value[3].strip(), {})
    revision = exceptions.setdefault(value[4].strip(),
      value[5].strip().replace(
        'http://sourceforge.net/projects/mingwbuilds/files',
        'http://downloads.sourceforge.net/project/mingwbuilds'))
  return versions

def get_mingw_archive_url(arch, threading, exceptions, version = 'latest',
    revision = 'latest'):
  versions = get_mingw_versions()
  if version == 'latest':
    version = max(versions.keys(),
      key = lambda x: tuple([int(n) for n in x.split('.')]))
  if revision == 'latest':
    revision = max(versions[version][arch][threading][exceptions].keys(),
      key = lambda x: int(x[3:]))
  return versions[version][arch][threading][exceptions][revision]

print(get_mingw_archive_url('x64', 'posix', 'sjlj'))