diff options
Diffstat (limited to 'gr-utils/python/modtool/util_functions.py')
| -rw-r--r-- | gr-utils/python/modtool/util_functions.py | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/gr-utils/python/modtool/util_functions.py b/gr-utils/python/modtool/util_functions.py index 6ba73d82ac..edd98fde8f 100644 --- a/gr-utils/python/modtool/util_functions.py +++ b/gr-utils/python/modtool/util_functions.py @@ -1,5 +1,5 @@ # -# Copyright 2013 Free Software Foundation, Inc. +# Copyright 2013, 2018 Free Software Foundation, Inc. # # This file is part of GNU Radio # @@ -143,10 +143,13 @@ class SequenceCompleter(object): """ A simple completer function wrapper to be used with readline, e.g. option_iterable = ("search", "seek", "destroy") readline.set_completer(SequenceCompleter(option_iterable).completefunc) + + Typical usage is with the `with` statement. Restores the previous completer + at exit, thus nestable. """ - def __init__(self, sequence): - self._seq = sequence + def __init__(self, sequence=None): + self._seq = sequence or [] self._tmp_matches = [] def completefunc(self, text, state): @@ -162,5 +165,5 @@ class SequenceCompleter(object): readline.set_completer(self.completefunc) readline.parse_and_bind("tab: complete") - def __exit__(self): + def __exit__(self, exception_type, exception_value, traceback): readline.set_completer(self._old_completer) |