setup.py: only require enum34 for python older than 3.4
This fixes errors like:
File "python3.6/lib/python3.6/re.py", line 142, in <module>
class RegexFlag(enum.IntFlag):
AttributeError: module 'enum' has no attribute 'IntFlag
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#56742
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SlapOS.SlapRunner.ResilienceTest-Master |
00:24:27
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| failed |
#56755
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SlapOS.SlapRunner.ResilienceTest-Master.ERP5 |
00:13:56
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| failed |
#56737
external
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SlapOS.SoftwareReleases.IntegrationTest-Master |
06:08:38
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#56699
external
retried
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SlapOS.SlapRunner.ResilienceTest-Master |
00:23:36
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| passed |
#56712
external
retried
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SlapOS.SlapRunner.ResilienceTest-Master |
00:24:32
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| failed |
#56700
external
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SlapOS.SlapRunner.ResilienceTest-Master.ERP5 |
00:22:02
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| failed |
#56713
external
retried
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SlapOS.SlapRunner.ResilienceTest-Master.ERP5 |
00:15:03
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