Fix code formatting to conform to the PEP 8 style guide

other/migrate.py

 #!/usr/bin/env python
 
 # Copyright 2011-2012 GRNET S.A. All rights reserved.
-# 
+#
 # Redistribution and use in source and binary forms, with or
 # without modification, are permitted provided that the following
 # conditions are met:
-# 
+#
 #   1. Redistributions of source code must retain the above
 #      copyright notice, this list of conditions and the following
 #      disclaimer.
-# 
+#
 #   2. Redistributions in binary form must reproduce the above
 #      copyright notice, this list of conditions and the following
 #      disclaimer in the documentation and/or other materials
 #      provided with the distribution.
-# 
+#
 # THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
 # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
@@ -27,7 +27,7 @@
 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
 # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 # POSSIBILITY OF SUCH DAMAGE.
-# 
+#
 # The views and conclusions contained in the software and
 # documentation are those of the authors and should not be
 # interpreted as representing official policies, either expressed
@@ -41,41 +41,43 @@ from django.conf import settings
 
 from pithos.backends.modular import ModularBackend
 
+
 class Migration(object):
     def __init__(self, db):
         self.engine = create_engine(db)
         self.metadata = MetaData(self.engine)
         #self.engine.echo = True
         self.conn = self.engine.connect()
-        
+
         options = getattr(settings, 'BACKEND', None)[1]
         self.backend = ModularBackend(*options)
-    
+
     def execute(self):
         pass
 
+
 class Cache():
     def __init__(self, db):
         self.engine = create_engine(db)
         metadata = MetaData(self.engine)
-        
-        columns=[]
+
+        columns = []
         columns.append(Column('path', String(2048), primary_key=True))
         columns.append(Column('hash', String(255)))
         self.files = Table('files', metadata, *columns)
         self.conn = self.engine.connect()
         self.engine.echo = True
         metadata.create_all(self.engine)
-    
+
     def put(self, path, hash):
         # Insert or replace.
-        s = self.files.delete().where(self.files.c.path==path)
+        s = self.files.delete().where(self.files.c.path == path)
         r = self.conn.execute(s)
         r.close()
         s = self.files.insert()
         r = self.conn.execute(s, {'path': path, 'hash': hash})
         r.close()
-    
+
     def get(self, path):
         s = select([self.files.c.hash], self.files.c.path == path)
         r = self.conn.execute(s)

snf-pithos-app/distribute_setup.py

@@ -144,17 +144,17 @@ def use_setuptools(version=DEFAULT_VERSION, download_base=DEFAULT_URL,
         except ImportError:
             return _do_download(version, download_base, to_dir, download_delay)
         try:
-            pkg_resources.require("distribute>="+version)
+            pkg_resources.require("distribute>=" + version)
             return
         except pkg_resources.VersionConflict:
             e = sys.exc_info()[1]
             if was_imported:
                 sys.stderr.write(
-                "The required version of distribute (>=%s) is not available,\n"
-                "and can't be installed while this script is running. Please\n"
-                "install a more recent version first, using\n"
-                "'easy_install -U distribute'."
-                "\n\n(Currently using %r)\n" % (version, e.args[0]))
+                    "The required version of distribute (>=%s) is not available,\n"
+                    "and can't be installed while this script is running. Please\n"
+                    "install a more recent version first, using\n"
+                    "'easy_install -U distribute'."
+                    "\n\n(Currently using %r)\n" % (version, e.args[0]))
                 sys.exit(2)
             else:
                 del pkg_resources, sys.modules['pkg_resources']    # reload ok
@@ -167,6 +167,7 @@ def use_setuptools(version=DEFAULT_VERSION, download_base=DEFAULT_URL,
         if not no_fake:
             _create_fake_setuptools_pkg_info(to_dir)
 
+
 def download_setuptools(version=DEFAULT_VERSION, download_base=DEFAULT_URL,
                         to_dir=os.curdir, delay=15):
     """Download distribute from a specified location and return its filename
@@ -203,6 +204,7 @@ def download_setuptools(version=DEFAULT_VERSION, download_base=DEFAULT_URL,
                 dst.close()
     return os.path.realpath(saveto)
 
+
 def _no_sandbox(function):
     def __no_sandbox(*args, **kw):
         try:
@@ -227,6 +229,7 @@ def _no_sandbox(function):
 
     return __no_sandbox
 
+
 def _patch_file(path, content):
     """Will backup the file then patch it"""
     existing_content = open(path).read()
@@ -245,15 +248,18 @@ def _patch_file(path, content):
 
 _patch_file = _no_sandbox(_patch_file)
 
+
 def _same_content(path, content):
     return open(path).read() == content
 
+
 def _rename_path(path):
     new_name = path + '.OLD.%s' % time.time()
     log.warn('Renaming %s into %s', path, new_name)
     os.rename(path, new_name)
     return new_name
 
+
 def _remove_flat_installation(placeholder):
     if not os.path.isdir(placeholder):
         log.warn('Unkown installation at %s', placeholder)
@@ -289,18 +295,20 @@ def _remove_flat_installation(placeholder):
 
 _remove_flat_installation = _no_sandbox(_remove_flat_installation)
 
+
 def _after_install(dist):
     log.warn('After install bootstrap.')
     placeholder = dist.get_command_obj('install').install_purelib
     _create_fake_setuptools_pkg_info(placeholder)
 
+
 def _create_fake_setuptools_pkg_info(placeholder):
     if not placeholder or not os.path.exists(placeholder):
         log.warn('Could not find the install location')
         return
     pyver = '%s.%s' % (sys.version_info[0], sys.version_info[1])
     setuptools_file = 'setuptools-%s-py%s.egg-info' % \
-            (SETUPTOOLS_FAKED_VERSION, pyver)
+        (SETUPTOOLS_FAKED_VERSION, pyver)
     pkg_info = os.path.join(placeholder, setuptools_file)
     if os.path.exists(pkg_info):
         log.warn('%s already exists', pkg_info)
@@ -321,7 +329,9 @@ def _create_fake_setuptools_pkg_info(placeholder):
     finally:
         f.close()
 
-_create_fake_setuptools_pkg_info = _no_sandbox(_create_fake_setuptools_pkg_info)
+_create_fake_setuptools_pkg_info = _no_sandbox(
+    _create_fake_setuptools_pkg_info)
+
 
 def _patch_egg_dir(path):
     # let's check if it's already patched
@@ -343,6 +353,7 @@ def _patch_egg_dir(path):
 
 _patch_egg_dir = _no_sandbox(_patch_egg_dir)
 
+
 def _before_install():
     log.warn('Before install bootstrap.')
     _fake_setuptools()
@@ -351,7 +362,7 @@ def _before_install():
 def _under_prefix(location):
     if 'install' not in sys.argv:
         return True
-    args = sys.argv[sys.argv.index('install')+1:]
+    args = sys.argv[sys.argv.index('install') + 1:]
     for index, arg in enumerate(args):
         for option in ('--root', '--prefix'):
             if arg.startswith('%s=' % option):
@@ -359,7 +370,7 @@ def _under_prefix(location):
                 return location.startswith(top_dir)
             elif arg == option:
                 if len(args) > index:
-                    top_dir = args[index+1]
+                    top_dir = args[index + 1]
                     return location.startswith(top_dir)
         if arg == '--user' and USER_SITE is not None:
             return location.startswith(USER_SITE)
@@ -380,7 +391,8 @@ def _fake_setuptools():
                                   replacement=False))
     except TypeError:
         # old distribute API
-        setuptools_dist = ws.find(pkg_resources.Requirement.parse('setuptools'))
+        setuptools_dist = ws.find(
+            pkg_resources.Requirement.parse('setuptools'))
 
     if setuptools_dist is None:
         log.warn('No setuptools distribution found')
@@ -406,7 +418,7 @@ def _fake_setuptools():
         log.warn('Egg installation')
         pkg_info = os.path.join(setuptools_location, 'EGG-INFO', 'PKG-INFO')
         if (os.path.exists(pkg_info) and
-            _same_content(pkg_info, SETUPTOOLS_PKG_INFO)):
+                _same_content(pkg_info, SETUPTOOLS_PKG_INFO)):
             log.warn('Already patched.')
             return
         log.warn('Patching...')
@@ -448,7 +460,7 @@ def _extractall(self, path=".", members=None):
             # Extract directories with a safe mode.
             directories.append(tarinfo)
             tarinfo = copy.copy(tarinfo)
-            tarinfo.mode = 448 # decimal for oct 0700
+            tarinfo.mode = 448  # decimal for oct 0700
         self.extract(tarinfo, path)
 
     # Reverse sort directories.

snf-pithos-app/pithos/api/delegate.py

 # Copyright 2011-2012 GRNET S.A. All rights reserved.
-# 
+#
 # Redistribution and use in source and binary forms, with or
 # without modification, are permitted provided that the following
 # conditions are met:
-# 
+#
 #   1. Redistributions of source code must retain the above
 #      copyright notice, this list of conditions and the following
 #      disclaimer.
-# 
+#
 #   2. Redistributions in binary form must reproduce the above
 #      copyright notice, this list of conditions and the following
 #      disclaimer in the documentation and/or other materials
 #      provided with the distribution.
-# 
+#
 # THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
 # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
@@ -25,7 +25,7 @@
 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
 # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 # POSSIBILITY OF SUCH DAMAGE.
-# 
+#
 # The views and conclusions contained in the software and
 # documentation are those of the authors and should not be
 # interpreted as representing official policies, either expressed
@@ -46,12 +46,13 @@ from pithos.api.settings import AUTHENTICATION_URL, AUTHENTICATION_USERS, SERVIC
 
 logger = logging.getLogger(__name__)
 
+
 def delegate_to_login_service(request):
     url = AUTHENTICATION_URL
     users = AUTHENTICATION_USERS
     if users or not url:
         return HttpResponseNotFound()
-    
+
     p = urlparse(url)
     if request.is_secure():
         proto = 'https://'
@@ -61,21 +62,22 @@ def delegate_to_login_service(request):
     uri = proto + p.netloc + '/login?' + urlencode(params)
     return HttpResponseRedirect(uri)
 
+
 @csrf_exempt
 def delegate_to_feedback_service(request):
     url = AUTHENTICATION_URL
     users = AUTHENTICATION_USERS
     if users or not url:
         return HttpResponseNotFound()
-    
+
     p = urlparse(url)
     if request.is_secure():
         proto = 'https://'
     else:
         proto = 'http://'
-    
+
     uri = proto + p.netloc + '/im/service/api/v2.0/feedback'
-    headers = { 'X-Auth-Token' : SERVICE_TOKEN }
+    headers = {'X-Auth-Token': SERVICE_TOKEN}
     values = dict([(k, v) for k, v in request.POST.items()])
     data = urllib.urlencode(values)
     req = urllib2.Request(uri, data, headers)
@@ -87,4 +89,4 @@ def delegate_to_feedback_service(request):
     except urllib2.URLError, e:
         logger.exception(e)
         return HttpResponse(status=e.reason)
-    return HttpResponse()
+    return HttpResponse()
\ No newline at end of file

snf-pithos-app/pithos/api/dispatch.py

 from pithos.api.settings import (BACKEND_DB_MODULE, BACKEND_DB_CONNECTION,
-                                    BACKEND_BLOCK_MODULE, BACKEND_BLOCK_PATH,
-                                    BACKEND_BLOCK_UMASK,
-                                    BACKEND_QUEUE_MODULE, BACKEND_QUEUE_CONNECTION,
-                                    BACKEND_QUOTA, BACKEND_VERSIONING)
+                                 BACKEND_BLOCK_MODULE, BACKEND_BLOCK_PATH,
+                                 BACKEND_BLOCK_UMASK,
+                                 BACKEND_QUEUE_MODULE, BACKEND_QUEUE_CONNECTION,
+                                 BACKEND_QUOTA, BACKEND_VERSIONING)
 from pithos.backends import connect_backend
 from pithos.api.util import hashmap_md5
 
@@ -14,10 +14,11 @@ from astakos.im.settings import DEFAULT_FROM_EMAIL
 import socket
 from smtplib import SMTPException
 
+
 def update_md5(m):
     if m['resource'] != 'object' or m['details']['action'] != 'object update':
         return
-    
+
     backend = connect_backend(db_module=BACKEND_DB_MODULE,
                               db_connection=BACKEND_DB_CONNECTION,
                               block_module=BACKEND_BLOCK_MODULE,
@@ -27,38 +28,44 @@ def update_md5(m):
                               queue_connection=BACKEND_QUEUE_CONNECTION)
     backend.default_policy['quota'] = BACKEND_QUOTA
     backend.default_policy['versioning'] = BACKEND_VERSIONING
-    
+
     path = m['value']
     account, container, name = path.split('/', 2)
     version = m['details']['version']
     meta = None
     try:
-        meta = backend.get_object_meta(account, account, container, name, 'pithos', version)
+        meta = backend.get_object_meta(
+            account, account, container, name, 'pithos', version)
         if meta['checksum'] == '':
-            size, hashmap = backend.get_object_hashmap(account, account, container, name, version)
+            size, hashmap = backend.get_object_hashmap(
+                account, account, container, name, version)
             checksum = hashmap_md5(backend, hashmap, size)
-            backend.update_object_checksum(account, account, container, name, version, checksum)
+            backend.update_object_checksum(
+                account, account, container, name, version, checksum)
             print 'INFO: Updated checksum for path "%s"' % (path,)
     except Exception, e:
         print 'WARNING: Can not update checksum for path "%s" (%s)' % (path, e)
-    
+
     backend.close()
 
+
 def send_sharing_notification(m):
     if m['resource'] != 'sharing':
         return
-    
+
     members = m['details']['members']
     user = m['details']['user']
     path = m['value']
     account, container, name = path.split('/', 2)
-    
+
     subject = 'Invitation to a Pithos+ shared object'
     from_email = DEFAULT_FROM_EMAIL
     recipient_list = members
-    message = 'User %s has invited you to a Pithos+ shared object. You can view it under "Shared to me" at "%s".' %(user, path)
+    message = 'User %s has invited you to a Pithos+ shared object. You can view it under "Shared to me" at "%s".' % (user, path)
     try:
         send_mail(subject, message, from_email, recipient_list)
-        print 'INFO: Sharing notification sent for path "%s" to %s' % (path, ','.join(recipient_list))
+        print 'INFO: Sharing notification sent for path "%s" to %s' % (
+            path, ','.join(recipient_list))
     except (SMTPException, socket.error) as e:
-        print 'WARNING: Can not update send email for sharing "%s" (%s)' % (path, e)
+        print 'WARNING: Can not update send email for sharing "%s" (%s)' % (
+            path, e)

snf-pithos-app/pithos/api/faults.py

 # Copyright 2011-2012 GRNET S.A. All rights reserved.
-# 
+#
 # Redistribution and use in source and binary forms, with or
 # without modification, are permitted provided that the following
 # conditions are met:
-# 
+#
 #   1. Redistributions of source code must retain the above
 #      copyright notice, this list of conditions and the following
 #      disclaimer.
-# 
+#
 #   2. Redistributions in binary form must reproduce the above
 #      copyright notice, this list of conditions and the following
 #      disclaimer in the documentation and/or other materials