IOError: [Errno 60] Operation timed out plistlib.readPlist

Question

Sometimes I receive an IOError when trying to read a plist file on a network share. The file exists and is never absent from the location in question.

tests_info = plistlib.readPlist(network_repo_path + PLIST_PATH)
  File "/System/Library/Frameworks/Python.framework/.../python2.7/plistlib.py", 
line 75, in readPlist 
pathOrFile = open(pathOrFile)
IOError: [Errno 60] Operation timed out: '/...<nfs share>/Tests.plist'