Avoid TypeError in Transaction.__repr__ (MagicStack#703)

Only add isolation to repr if it's not None

Author: BeatButton

asyncpg/transaction.py

@@ -234,7 +234,8 @@ def __repr__(self):
  attrs = []
  attrs.append('state:{}'.format(self._state.name.lower()))
 
- attrs.append(self._isolation)
+ if self._isolation is not None:
+ attrs.append(self._isolation)
  if self._readonly:
  attrs.append('readonly')
  if self._deferrable: