def _decode_header_randomness(addr):
"""
This fixes the given address so that it is *always* a set() of
just email addresses suitable for routing.
"""
if not addr:
return set()
elif isinstance(addr, list):
return set(parseaddr(a.lower())[1] for a in addr)
elif isinstance(addr, basestring):
return set([parseaddr(addr.lower())[1]])
else:
raise encoding.EncodingError("Address must be a string or a list not: %r", type(addr))
def _decode_header_randomness(addr):
"""
This fixes the given address so that it is *always* a set() of
just email addresses suitable for routing.
"""
if not addr:
return set()
elif isinstance(addr, (list, tuple)):
addr_set = set()
for a in addr:
for returned_addr in _decode_header_randomness(a):
addr_set.add(returned_addr)
return addr_set
elif isinstance(addr, six.string_types):
return set([parseaddr(addr.lower())[1]])
elif isinstance(addr, six.binary_type):
addr = addr.decode()
return set([parseaddr(addr.lower())[1]])
else:
raise encoding.EncodingError("Address must be a string or a list not: %r", type(addr))
