Merge pull request #5 from chr15m/custom_repository

Allow user to specify pypi repo (for testing).

README.md

@@ -39,6 +39,10 @@ Optional arguments:
 
 `is_outdated` is a boolean which is True if the given version is earlier than the latest version, which is the string `latest_version`.
 
+Optional arguments:
+
+- `repository_url` (default `https://pypi.python.org/pypi/%s/json`): format string to use a different repository pypi repository URL. For example test.pypi.org or a private repository. Formatter is passed the package name as the first argument.
+
 This still makes the HTTP call with retries and caches the result on disk. It doesn't use a separate thread or emit any warnings (unless there is an exception specifically while using the cache, in which case the check will be done without the cache).
 
 ## Additional configuration

outdated/__init__.py

@@ -9,7 +9,7 @@
 __version__ = '0.2.0'
 
 
-def check_outdated(package, version):
+def check_outdated(package, version, repository_url='https://pypi.python.org/pypi/%s/json'):
     """
     Given the name of a package on PyPI and a version (both strings), checks
     if the given version is the latest version of the package available.
@@ -36,7 +36,7 @@ def check_outdated(package, version):
                 latest = None
 
     def get_latest():
-        url = 'https://pypi.python.org/pypi/%s/json' % package
+        url = repository_url % package
         response = utils.get_url(url)
         return json.loads(response)['info']['version']