[Python-checkins] CVS: python/dist/src/Doc/lib libdoctest.tex,1.6,1.6.2.1

[Fred L. Drake]

Update of /cvsroot/python/python/dist/src/Doc/lib
In directory usw-pr-cvs1:/tmp/cvs-serv28910

Modified Files:
      Tag: release21-maint
	libdoctest.tex 
Log Message:

Merge in recent changes from development branch:  add warning about being
sure that code only runs once when using the module as both a module and a
script.


Index: libdoctest.tex
===================================================================
RCS file: /cvsroot/python/python/dist/src/Doc/lib/libdoctest.tex,v
retrieving revision 1.6
retrieving revision 1.6.2.1
diff -C2 -r1.6 -r1.6.2.1
*** libdoctest.tex	2001/04/05 18:31:27	1.6
--- libdoctest.tex	2001/06/11 14:57:07	1.6.2.1
***************
*** 407,410 ****
--- 407,421 ----
  Simple fractions are also easier for people to understand, and that makes
  for better documentation.
+ 
+ \item Be careful if you have code that must only execute once.
+ 
+ If you have module-level code that must only execute once, a more foolproof
+ definition of \function{_test()} is
+ 
+ \begin{verbatim}
+ def _test():
+     import doctest, sys
+     doctest.testmod(sys.modules["__main__"])
+ \end{verbatim}
  \end{enumerate}