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Fix logger pickling error #407

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merged 4 commits into from
Apr 30, 2021
Merged

Fix logger pickling error #407

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f58c61a
Fix logger pickling error
Derek-Wds Apr 29, 2021
ca92cb9
Update meta logger
Derek-Wds Apr 29, 2021
51b649e
Update QlibLogger
Derek-Wds Apr 30, 2021
5eb9dff
Remove redundant
Derek-Wds Apr 30, 2021
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Fix logger pickling error
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@Derek-Wds
Derek-Wds committed Apr 29, 2021
commit f58c61a2e0c313074729da6715d30d58e1503e69
10 changes: 10 additions & 0 deletions qlib/log.py
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Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,7 @@ def __new__(cls, name, bases, dict):
wrapper_dict = logging.Logger.__dict__.copy()
wrapper_dict.update(dict)
wrapper_dict["__doc__"] = logging.Logger.__doc__
del wrapper_dict["__reduce__"] # make Logger object can be pickled
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return type.__new__(cls, name, bases, wrapper_dict)


Expand All @@ -29,6 +30,15 @@ def __init__(self, module_name):
self.module_name = module_name
self.level = 0

def __getstate__(self):
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return vars(self)

def __setstate__(self, state):
vars(self).update(state)

def __reduce__(self):
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return (QlibLogger, (self.module_name,))

@property
def logger(self):
logger = logging.getLogger(self.module_name)
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