Change "\," to just "," in function signatures.  This is easier to maintain,
works better with LaTeX2HTML, and allows some simplification of the python.sty
macros.
diff --git a/Doc/libanydbm.tex b/Doc/libanydbm.tex
index c7e5ae3..1c46c61 100644
--- a/Doc/libanydbm.tex
+++ b/Doc/libanydbm.tex
@@ -13,7 +13,7 @@
 % at the same time.
 \setindexsubitem{(in modules anydbm, dumbdbm)}
 
-\begin{funcdesc}{open}{filename\optional{\, flag\, mode}}
+\begin{funcdesc}{open}{filename\optional{, flag, mode}}
 Open the database file \var{filename} and return a corresponding object.
 The optional \var{flag} argument can be
 \code{'r'} to open an existing database for reading only,