Removed useless import and improved code style.

src/zc/buildout/networkcache.py

@@ -15,7 +15,6 @@
 
 import os
 import urllib
-import re
 import posixpath
 import base64
 import hashlib
@@ -46,11 +45,13 @@ def _get_sha256_from_file(path):
                                          ' The path is not a file: %s ' % path
     return _get_hash_from_file(path, hashlib.sha256())
 
+
 def check_sha256sum(path, sha256sum):
     """Tell whether the SHA256sum checksum of the file at path matches
     """
     return sha256sum == _get_hash_from_file(path, hashlib.sha256())
 
+
 def _update_network_cached_map(network_cache, sha256sum, url, logger):
     """
       If the url is not into the map file, it must be updated.
@@ -134,6 +135,7 @@ def download_network_cached(network_cache, path, url, logger):
 
     return True
 
+
 def upload_network_cached(network_cache, external_url, path, logger):
     """Upload file to a network cache server"""
     if network_cache in [None, '']:
@@ -148,14 +150,15 @@ def upload_network_cached(network_cache, external_url, path, logger):
         url = os.path.join(network_cache, sha256sum)
         try:
             result = urllib.urlopen(url, urllib.urlencode({
-                                         "data" : base64.encodestring(data)}))
+                                         "data": base64.encodestring(data)}))
             if result.code == 200 and \
                         json.loads(result.read()).get('sha') == sha256sum:
                 _update_network_cached_map(network_cache, sha256sum,
                                            external_url, logger)
 
         except (IOError, EOFError), e:
-            logger.info('Fail to upload cache on %s. %s' % (external_url, str(e)))
+            logger.info('Fail to upload cache on %s. %s' % \
+                                                      (external_url, str(e)))
     finally:
         f.close()
     return True