From: Guido van Rossum <guido@python.org>
Date: Fri, 12 Mar 1999 22:15:43 +0000 (+0000)
Subject: Patch by Michael Scharf.  He writes:
X-Git-Tag: v1.5.2c1~158
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=d5138caba5fac644571cd7fa013d1ab0d4f867b6;p=python

Patch by Michael Scharf.  He writes:

    The module cmd requires for each do_xxx command a help_xxx
    function. I think this is a little old fashioned.

    Here is a patch: use the docstring as help if no help_xxx
    function can be found.

[I'm tempted to rip out all the help_* functions from pdb, but I'll
resist it.  Any takers?  --Guido]
---

diff --git a/Lib/cmd.py b/Lib/cmd.py
index 138cdb6034..9ca0010a1a 100644
--- a/Lib/cmd.py
+++ b/Lib/cmd.py
@@ -127,6 +127,13 @@ class Cmd:
 			try:
 				func = getattr(self, 'help_' + arg)
 			except:
+				try:
+					doc=getattr(self, 'do_' + arg).__doc__
+					if doc:
+						print doc
+						return
+				except:
+					pass
 				print self.nohelp % (arg,)
 				return
 			func()
@@ -159,6 +166,8 @@ class Cmd:
 					if help.has_key(cmd):
 						cmds_doc.append(cmd)
 						del help[cmd]
+					elif getattr(self, name).__doc__:
+						cmds_doc.append(cmd)
 					else:
 						cmds_undoc.append(cmd)
 			print self.doc_leader