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Fix _abc_data pickle error in 3.7

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This commit is contained in:
Matthias 2018-08-12 10:16:51 +02:00
parent e73331b9b6
commit e3e79a55fa
1 changed files with 11 additions and 1 deletions
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12
freqtrade/strategy/__init__.py
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@ -12,8 +12,18 @@ def import_strategy(strategy: IStrategy, config: dict) -> IStrategy:
Imports given Strategy instance to global scope Imports given Strategy instance to global scope
of freqtrade.strategy and returns an instance of it of freqtrade.strategy and returns an instance of it
""" """
# Copy all attributes from base class and class # Copy all attributes from base class and class
attr = deepcopy({**strategy.__class__.__dict__, **strategy.__dict__})
comb = {**strategy.__class__.__dict__, **strategy.__dict__}
# Delete '_abc_impl' from dict as deepcopy fails on 3.7 with
# `TypeError: can't pickle _abc_data objects``
# This will only apply to python 3.7
if '_abc_impl' in comb:
del comb['_abc_impl']
attr = deepcopy(comb)
# Adjust module name # Adjust module name
attr['__module__'] = 'freqtrade.strategy' attr['__module__'] = 'freqtrade.strategy'