assignee=Noneclosed_at=Nonecreated_at=<Date2016-02-01.00:55:23.398>labels= ['3.7','type-feature','library']title='tarfile in stream mode always set zlib compression level to 9'updated_at=<Date2017-08-01.17:03:47.325>user='https://bugs.python.org/PatrikDufresne'

activity=<Date2017-08-01.17:03:47.325>actor='jarondl'assignee='none'closed=Falseclosed_date=Nonecloser=Nonecomponents= ['Library (Lib)']creation=<Date2016-02-01.00:55:23.398>creator='Patrik Dufresne'dependencies= []files= []hgrepos= []issue_num=26253keywords= []message_count=6.0messages= ['259304','259308','259987','292628','297220','299622']nosy_count=6.0nosy_names= ['lars.gustaebel','martin.panter','wim.glenn','xiang.zhang','Patrik Dufresne','jarondl']pr_nums= ['2962']priority='normal'resolution=Nonestage=Nonestatus='open'superseder=Nonetype='enhancement'url='https://bugs.python.org/issue26253'versions= ['Python 3.7']