add hg and python

sys/lib/python/encodings/utf_7.py

@@ -0,0 +1,41 @@
+""" Python 'utf-7' Codec
+
+Written by Brian Quinlan (brian@sweetapp.com).
+"""
+import codecs
+
+### Codec APIs
+
+class Codec(codecs.Codec):
+
+    # Note: Binding these as C functions will result in the class not
+    # converting them to methods. This is intended.
+    encode = codecs.utf_7_encode
+    decode = codecs.utf_7_decode
+
+class IncrementalEncoder(codecs.IncrementalEncoder):
+    def encode(self, input, final=False):
+        return codecs.utf_7_encode(input, self.errors)[0]
+
+class IncrementalDecoder(codecs.BufferedIncrementalDecoder):
+    def _buffer_decode(self, input, errors, final):
+        return codecs.utf_7_decode(input, self.errors)
+
+class StreamWriter(Codec,codecs.StreamWriter):
+    pass
+
+class StreamReader(Codec,codecs.StreamReader):
+    pass
+
+### encodings module API
+
+def getregentry():
+    return codecs.CodecInfo(
+        name='utf-7',
+        encode=Codec.encode,
+        decode=Codec.decode,
+        incrementalencoder=IncrementalEncoder,
+        incrementaldecoder=IncrementalDecoder,
+        streamreader=StreamReader,
+        streamwriter=StreamWriter,
+    )