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Add optional to CommandArgs

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This commit is contained in:
Steffo 2019-04-09 12:17:05 +02:00
parent 4735d145b6
commit 8f7fe39c27
1 changed files with 5 additions and 0 deletions
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5
royalnet/utils/command.py
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@ -43,6 +43,11 @@ class CommandArgs(list):
raise InvalidInputError("Pattern didn't match") raise InvalidInputError("Pattern didn't match")
return match return match
def optional(self, index: int) -> typing.Optional:
try:
return self[index]
except IndexError:
return None
class Command: class Command:
"""A generic command, called from any source.""" """A generic command, called from any source."""