[Checkins] SVN: zc.buildout/trunk/src/zc/buildout/download.py added a comment to explain the intent of the regexp

[Thomas Lotze]

Log message for revision 118861:
  added a comment to explain the intent of the regexp

Changed:
  U   zc.buildout/trunk/src/zc/buildout/download.py

-=-
Modified: zc.buildout/trunk/src/zc/buildout/download.py
===================================================================
--- zc.buildout/trunk/src/zc/buildout/download.py	2010-12-14 10:55:01 UTC (rev 118860)
+++ zc.buildout/trunk/src/zc/buildout/download.py	2010-12-14 11:52:05 UTC (rev 118861)
@@ -149,8 +149,11 @@
         returned and the client code is responsible for cleaning it up.
 
         """
+        # Make sure the drive letter in windows-style file paths isn't
+        # interpreted as a URL scheme.
         if re.match(r"^[A-Za-z]:\\", url):
             url = 'file:' + url
+
         parsed_url = urlparse.urlparse(url, 'file')
         url_scheme, _, url_path = parsed_url[:3]
         if url_scheme == 'file':