human
Solve the following python programming problem given the following code:
def _symlinkErrorTest(self, errno) : 
    def fakeSymlink(source, dest) : 
        raise OSError (errno, None) 
self.patch (lockfile, 'symlink', exc) 
    lockf = self.mktemp () 
    lock = lockfile.FilesystemLock (lockf) 
    exc = self.assertRaises (OSError, lock.lock) 
    self.assertEqual (exc.errno, errno) 

    
    

    Fix the buggy line: self.patch (lockfile, 'symlink', exc)
assistant
#Here is Python program to fix the buggy line: self.

self.patch (lockfile, 'symlink', def fakeSymlink()