I've discovered that do_help method of cmd.Cmd prints the documented and undocumented commands in sorted order, but does not sort the miscellaneous topics. This would be an easy fix, just change "self.print_topics(self.misc_header, help.keys(),15,80)" to use "sorted(help.keys())".

cmd.Cmd has a documented do_help(self, arg) method (written in 2000). If arg is '', it prints

1. Documented commands (do_x with help_x or do_x.__doc__ != ''), sorted
2. Other help topics (help_y with no do_y), unsorted
3. Undocumented commands (do_ without no help_x and no do_x.__doc__), sorted

The dict called 'help' (which should be a set, and might better be called 'topics') ends up with a member for each help_y topic without a do_y command. Not sorting the keys is at least a design bug. Leaving users aside, it makes do_help unpredictable and hard to test. Our test.test_cmd omits misc help topics. In verbose mode, it prints

Trying:
mycmd.do_help("")
Expecting:
<BLANKLINE>
Documented commands (type help <topic>):
========================================
add help

Undocumented commands:
======================
exit shell
<BLANKLINE>
ok

As near as I can tell, text_cmd would still pass if Misc topics were removed and never printed. Topics can only be added to the test above is they are dependably ordered (ie, sorted).

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This '?' or 'help' case is also not properly documented, but should be. 3.4 cmd.__doc__ has this mishmash:

"With no arguments, it lists all topics with defined help_ functions, broken into up to three topics; documented commands, miscellaneous help topics, and undocumented commands."

3.4 doc says "With no argument, do_help() lists all available help topics (that is, all commands with corresponding help_*() methods or commands that have docstrings), and also lists any undocumented commands."