[Python-checkins] CVS: python/dist/src/Lib codecs.py,1.22,1.23

[M.-A. Lemburg]

Update of /cvsroot/python/python/dist/src/Lib
In directory usw-pr-cvs1:/tmp/cvs-serv21543/Lib

Modified Files:
	codecs.py 
Log Message:
Added new helpers for easy access to codecs. Docs will follow.



Index: codecs.py
===================================================================
RCS file: /cvsroot/python/python/dist/src/Lib/codecs.py,v
retrieving revision 1.22
retrieving revision 1.23
diff -C2 -d -r1.22 -r1.23
*** codecs.py	2001/09/18 20:29:48	1.22
--- codecs.py	2001/09/19 11:24:48	1.23
***************
*** 540,543 ****
--- 540,585 ----
      return sr
  
+ ### Helpers for codec lookup
+ 
+ def getencoder(encoding):
+ 
+     """ Lookup up the codec for the given encoding and return
+         its encoder function.
+ 
+         Raises a LookupError in case the encoding cannot be found.
+ 
+     """
+     return lookup(encoding)[0]
+ 
+ def getdecoder(encoding):
+ 
+     """ Lookup up the codec for the given encoding and return
+         its decoder function.
+ 
+         Raises a LookupError in case the encoding cannot be found.
+ 
+     """
+     return lookup(encoding)[1]
+ 
+ def getreader(encoding):
+ 
+     """ Lookup up the codec for the given encoding and return
+         its StreamReader class or factory function.
+ 
+         Raises a LookupError in case the encoding cannot be found.
+ 
+     """
+     return lookup(encoding)[2]
+ 
+ def getwriter(encoding):
+ 
+     """ Lookup up the codec for the given encoding and return
+         its StreamWriter class or factory function.
+ 
+         Raises a LookupError in case the encoding cannot be found.
+ 
+     """
+     return lookup(encoding)[3]
+ 
  ### Helpers for charmap-based codecs