Fixing the errors trigerred in test_urllib2net. Related to issue8656.

Lib/urllib2.py

@@ -1276,13 +1276,13 @@ class FileHandler(BaseHandler):
         import email.utils
         import mimetypes
         host = req.get_host()
-        file = req.get_selector()
-        localfile = url2pathname(file)
+        filename = req.get_selector()
+        localfile = url2pathname(filename)
         try:
             stats = os.stat(localfile)
             size = stats.st_size
             modified = email.utils.formatdate(stats.st_mtime, usegmt=True)
-            mtype = mimetypes.guess_type(file)[0]
+            mtype = mimetypes.guess_type(filename)[0]
             headers = mimetools.Message(StringIO(
                 'Content-type: %s\nContent-length: %d\nLast-modified: %s\n' %
                 (mtype or 'text/plain', size, modified)))
@@ -1290,8 +1290,11 @@ class FileHandler(BaseHandler):
                 host, port = splitport(host)
             if not host or \
                 (not port and socket.gethostbyname(host) in self.get_names()):
-                return addinfourl(open(localfile, 'rb'),
-                                  headers, 'file://'+ host + file)
+                if host:
+                    origurl = 'file://' + host + filename
+                else:
+                    origurl = 'file://' + filename
+                return addinfourl(open(localfile, 'rb'), headers, origurl)
         except OSError, msg:
             # urllib2 users shouldn't expect OSErrors coming from urlopen()
             raise URLError(msg)