diff options
Diffstat (limited to 'cmd2/utils.py')
| -rw-r--r-- | cmd2/utils.py | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/cmd2/utils.py b/cmd2/utils.py index ee53e924..728c1ac3 100644 --- a/cmd2/utils.py +++ b/cmd2/utils.py @@ -85,8 +85,10 @@ class Settable: Settable Initializer :param name: name of the instance attribute being made settable - :param val_type: type or callable used to cast the string value from the command line - setting this to bool provides tab completion for true/false and validation using str_to_bool + :param val_type: callable used to cast the string value from the command line into its proper type and + even validate its value. Setting this to bool provides tab completion for true/false and + validation using str_to_bool(). The val_type function should raise an exception if it fails. + This exception will be caught and printed by Cmd.do_set(). :param description: string describing this setting The following optional settings provide tab completion for a parameter's values. They correspond to the |