matthew/enhanced-discord.py
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[commands] Fix typing.Union converters for 3.7

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Guido please don't break this
This commit is contained in:
Rapptz 2018-07-20 18:01:48 -04:00
parent 52767cf315
commit 69ca675ca0
1 changed files with 16 additions and 11 deletions
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27
discord/ext/commands/core.py
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@ -257,18 +257,23 @@ class Command:
if converter is bool:
return _convert_to_bool(argument)
if type(converter) is typing._Union:
errors = []
for conv in converter.__args__:
try:
value = await self._actual_conversion(ctx, conv, argument, param)
except CommandError as e:
errors.append(e)
else:
return value
try:
origin = converter.__origin__
except AttributeError:
pass
else:
if origin is typing.Union:
errors = []
for conv in converter.__args__:
try:
value = await self._actual_conversion(ctx, conv, argument, param)
except CommandError as e:
errors.append(e)
else:
return value
# if we're here, then we failed all the converters
raise BadUnionArgument(param, converter.__args__, errors)
# if we're here, then we failed all the converters
raise BadUnionArgument(param, converter.__args__, errors)
return await self._actual_conversion(ctx, converter, argument, param)