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Don't do calculations in exception handlers when one element can be None

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fixes #2011
This commit is contained in:
Matthias 2019-08-18 15:46:10 +02:00
parent 8e96ac8765
commit ee7ba96e85
1 changed files with 2 additions and 2 deletions
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4
freqtrade/exchange/exchange.py
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@ -408,12 +408,12 @@ class Exchange(object):
except ccxt.InsufficientFunds as e:
raise DependencyException(
f'Insufficient funds to create {ordertype} {side} order on market {pair}.'
f'Tried to {side} amount {amount} at rate {rate} (total {rate * amount}).'
f'Tried to {side} amount {amount} at rate {rate}.'
f'Message: {e}') from e
except ccxt.InvalidOrder as e:
raise DependencyException(
f'Could not create {ordertype} {side} order on market {pair}.'
f'Tried to {side} amount {amount} at rate {rate} (total {rate * amount}).'
f'Tried to {side} amount {amount} at rate {rate}.'
f'Message: {e}') from e
except (ccxt.NetworkError, ccxt.ExchangeError) as e:
raise TemporaryError(