Update checked in version of gsutil to version 4.6

third_party/boto/boto/roboto/param.py

Index: third_party/boto/boto/roboto/param.py
===================================================================
--- third_party/boto/boto/roboto/param.py	(revision 33376)
+++ third_party/boto/boto/roboto/param.py	(working copy)
@@ -46,7 +46,7 @@
 
     @classmethod
     def convert_file(cls, param, value):
-        if os.path.isfile(value):
+        if os.path.exists(value) and not os.path.isdir(value):
             return value
         raise ValueError
 
@@ -67,7 +67,7 @@
         except:
             raise ValidationException(param, '')
 
-class Param(object):
+class Param(Converter):
 
     def __init__(self, name=None, ptype='string', optional=True,
                  short_name=None, long_name=None, doc='',
@@ -142,6 +142,6 @@
         :param value: The value to convert.  This should always
                       be a string.
         """
-        return super(Param, self).convert(value)
+        return super(Param, self).convert(self,value)