Python cmd on linux not autocomplete special characters or characters

Question

Characters such as -, +etc., are not parsed in the same way as ASCII alphanumeric characters with the Python readline-based cmd module. This seems like a specific problem only for Linux, as it is expected to work on Mac OS.

Code example

import cmd

class Test(cmd.Cmd):
    def do_abc(self, line):
        print line 
    def complete_abc(self, text, line, begidx, endidx):
        return [i for i in ['-xxx', '-yyy', '-zzz'] if i.startswith(text)]

try:
    import readline
except ImportError:
    print "Module readline not available."
else:
    import rlcompleter
    if 'libedit' in readline.__doc__:
        readline.parse_and_bind("bind ^I rl_complete")
    else:
        readline.parse_and_bind("tab: complete")

Test().cmdloop()

Expected Behavior on Mac OS

(Cmd) abc <TAB>
abc  
(Cmd) abc -<TAB>
-xxx  -yyy  -zzz  
(Cmd) abc -x<TAB>
(Cmd) abc -xxx

Incorrect Linux behavior

(Cmd) abc <TAB>
abc  
(Cmd) abc -x<TAB>
 <Nothing>
(Cmd) abc -<TAB> 
(Cmd) abc --<TAB>
(Cmd) abc ---<TAB>
(Cmd) abc ----

I tried adding -to cmd.Cmd.identchars, but that didn't help.

cmd.Cmd.identchars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_-'

Why is there a difference in readline analysis between Mac OS and Linux, although both use GNL readline:

Mac OS:

>>> readline.__doc__
'Importing this module enables command line editing using GNU readline.'

Linux:

>>> readline.__doc__
'Importing this module enables command line editing using GNU readline.'

Thank!

Answer 1

linux readline - . , , -, .

- - , readline .

.

old_delims = readline.get_completer_delims()
readline.set_completer_delims(old_delims.replace('-', ''))