Index: test_csv.py
===================================================================
RCS file: /cvsroot/python/python/dist/src/Lib/test/test_csv.py,v
retrieving revision 1.28
diff -c -r1.28 test_csv.py
*** test_csv.py	20 Apr 2005 19:41:24 -0000	1.28
--- test_csv.py	30 Jun 2005 23:06:11 -0000
***************
*** 249,254 ****
--- 249,260 ----
                            ['abc,3'], [[]],
                            quoting=csv.QUOTE_NONNUMERIC)
  
+     def test_read_comments(self):
+         self._read_test(['a,b,c'], [['a', 'b', 'c']], commentchar='#')
+         self._read_test(['#a,b,c'], [], commentchar='#')
+         self._read_test([';a,b,c'], [], commentchar=';')
+         self._read_test([' #a,b,c'], [[' #a','b','c']], commentchar='#')
+     
      def test_read_bigfield(self):
          # This exercises the buffer realloc functionality and field size
          # limits.
***************
*** 420,425 ****
--- 426,432 ----
          self.assertRaises(TypeError, csv.reader, [], delimiter = None)
          self.assertRaises(TypeError, csv.reader, [], quoting = -1)
          self.assertRaises(TypeError, csv.reader, [], quoting = 100)
+         self.assertRaises(TypeError, csv.reader, [], commentchar = ' ')
  
  class TestCsvBase(unittest.TestCase):
      def readerAssertEqual(self, input, expected_result):
Index: libcsv.tex
===================================================================
RCS file: /cvsroot/python/python/dist/src/Doc/lib/libcsv.tex,v
retrieving revision 1.19
diff -c -r1.19 libcsv.tex
*** libcsv.tex	18 Mar 2005 16:56:37 -0000	1.19
--- libcsv.tex	30 Jun 2005 23:07:42 -0000
***************
*** 263,268 ****
--- 263,276 ----
  
  Dialects support the following attributes:
  
+ \begin{memberdesc}[Dialect]{commentchar}
+ A one-character string denoting comment lines.  If the first character on a
+ line is \var{commentchar}, the \class{reader} will skip that line; it has no
+ effect on the \class{writer}.  An \exception{Error} is raised if
+ \var{commentchar} is \code{' '} (a space).  It defaults to \constant{None},
+ meaning no lines will be ignored.
+ \end{memberdesc}
+ 
  \begin{memberdesc}[Dialect]{delimiter}
  A one-character string used to separate fields.  It defaults to \code{','}.
  \end{memberdesc}