add PyPI support

API: https://wiki.python.org/moin/PyPIJSON?action=show&redirect=PyPiJson

nvchecker/get_version.py

@@ -12,7 +12,7 @@ import tornado.process
 from tornado.ioloop import IOLoop
 
 logger = logging.getLogger(__name__)
-handler_precedence = ('github', 'aur', 'cmd', 'regex')
+handler_precedence = ('github', 'aur', 'pypi', 'cmd', 'regex')
 
 try:
   import pycurl
@@ -122,3 +122,16 @@ def _command_done(name, callback, process, status):
 def _got_version_from_cmd(callback, name, output):
   output = output.strip().decode('latin1')
   callback(name, output)
+
+PYPI_URL = 'https://pypi.python.org/pypi/%s/json'
+
+def get_version_by_pypi(name, conf, callback):
+  repo = conf.get('pypi') or name
+  url = PYPI_URL % repo
+  AsyncHTTPClient().fetch(url, user_agent='lilydjwg/nvchecker',
+                          callback=partial(_pypi_done, name, callback))
+
+def _pypi_done(name, callback, res):
+  data = json.loads(res.body.decode('utf-8'))
+  version = data['info']['version']
+  callback(name, version)

sources/sample_source.ini

@@ -29,3 +29,6 @@ github = lilydjwg/nvchecker
 url = http://sed.sourceforge.net/grabbag/ssed/
 regex = The current version is ([\d.]+)\.
 proxy = localhost:8087
+
+[PySide]
+pypi = PySide