Patch #1436130: codecs.lookup() now returns a CodecInfo object (a subclass
of tuple) that provides incremental decoders and encoders (a way to use
stateful codecs without the stream API). Functions
codecs.getincrementaldecoder() and codecs.getincrementalencoder() have
been added.
diff --git a/Lib/encodings/punycode.py b/Lib/encodings/punycode.py
index 82fd458..2cde8b9 100644
--- a/Lib/encodings/punycode.py
+++ b/Lib/encodings/punycode.py
@@ -197,18 +197,27 @@
### Codec APIs
class Codec(codecs.Codec):
- def encode(self,input,errors='strict'):
+ def encode(self,input,errors='strict'):
res = punycode_encode(input)
return res, len(input)
def decode(self,input,errors='strict'):
-
if errors not in ('strict', 'replace', 'ignore'):
raise UnicodeError, "Unsupported error handling "+errors
res = punycode_decode(input, errors)
return res, len(input)
+class IncrementalEncoder(codecs.IncrementalEncoder):
+ def encode(self, input, final=False):
+ return punycode_encode(input)
+
+class IncrementalDecoder(codecs.IncrementalDecoder):
+ def decode(self, input, final=False):
+ if errors not in ('strict', 'replace', 'ignore'):
+ raise UnicodeError, "Unsupported error handling "+errors
+ return punycode_decode(input, errors)
+
class StreamWriter(Codec,codecs.StreamWriter):
pass
@@ -218,5 +227,12 @@
### encodings module API
def getregentry():
-
- return (Codec().encode,Codec().decode,StreamReader,StreamWriter)
+ return codecs.CodecInfo(
+ name='punycode',
+ encode=Codec().encode,
+ decode=Codec().decode,
+ incrementalencoder=IncrementalEncoder,
+ incrementaldecoder=IncrementalDecoder,
+ streamwriter=StreamWriter,
+ streamreader=StreamReader,
+ )