d-feet crashes: module 'enum' has no attribute 'IntFlag'

[Gerald Jansen]

19.04 python3.7

Traceback (most recent call last):
  File "/usr/bin/d-feet", line 38, in <module>
    import gettext, locale
  File "/usr/lib/python3.7/gettext.py", line 49, in <module>
    import locale
  File "/usr/lib/python3.7/locale.py", line 16, in <module>
    import re
  File "/usr/lib/python3.7/re.py", line 143, in <module>
    class RegexFlag(enum.IntFlag):
AttributeError: module 'enum' has no attribute 'IntFlag'
Error in sys.excepthook:
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/apport_python_hook.py", line 53, in apport_excepthook
    if not enabled():
  File "/usr/lib/python3/dist-packages/apport_python_hook.py", line 24, in enabled
    import re
  File "/usr/lib/python3.7/re.py", line 143, in <module>
    class RegexFlag(enum.IntFlag):
AttributeError: module 'enum' has no attribute 'IntFlag'

Original exception was:
Traceback (most recent call last):
  File "/usr/bin/d-feet", line 38, in <module>
    import gettext, locale
  File "/usr/lib/python3.7/gettext.py", line 49, in <module>
    import locale
  File "/usr/lib/python3.7/locale.py", line 16, in <module>
    import re
  File "/usr/lib/python3.7/re.py", line 143, in <module>
    class RegexFlag(enum.IntFlag):
AttributeError: module 'enum' has no attribute 'IntFlag'