Apply pep8 fix

gns3server/utils/images.py

@@ -21,6 +21,7 @@ import hashlib
 import logging
 log = logging.getLogger(__name__)
 
+
 def md5sum(path):
     """
     Return the md5sum of an image and cache it on disk

gns3server/utils/interfaces.py

@@ -30,7 +30,7 @@ def _get_windows_interfaces_from_registry():
 
     import winreg
 
-    #HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces
+    # HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces
     interfaces = []
     try:
         hkey = winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE, r"SOFTWARE\Microsoft\Windows NT\CurrentVersion\NetworkCards")