assignee=Noneclosed_at=Nonecreated_at=<Date2019-11-22.15:57:32.933>labels= ['3.7','3.8','3.9','performance']title='performance degradation creating a mock object (by factor 7-8)'updated_at=<Date2019-11-26.04:51:16.008>user='https://github.com/julianhille'

activity=<Date2019-11-26.04:51:16.008>actor='xtreak'assignee='none'closed=Falseclosed_date=Nonecloser=Nonecomponents= []creation=<Date2019-11-22.15:57:32.933>creator='julianhille'dependencies= []files= []hgrepos= []issue_num=38895keywords= []message_count=7.0messages= ['357297','357379','357382','357431','357435','357450','357481']nosy_count=7.0nosy_names= ['cjw296','michael.foord','lisroach','mariocj89','xtreak','julianhille','marseel']pr_nums= []priority='normal'resolution=Nonestage=Nonestatus='open'superseder=Nonetype='performance'url='https://bugs.python.org/issue38895'versions= ['Python 3.7','Python 3.8','Python 3.9']