Drop python2 support
This mostly consists in removing the dependency on "six" and updating
the code to use only Python3 idioms.
Notice that we previously used TemporaryDirectory from
cubicweb.devtools.testlib for compatibility with Python2. We now
directly import it from tempfile.
if confirm('use Europe/Paris as timezone?'):
timezone = 'Europe/Paris'
else:
import pytz
while True:
timezone = raw_input('enter your timezone')
if timezone in pytz.common_timezones:
break
dbdriver = repo.system_source.dbdriver
if dbdriver == 'postgres':
sql("SET TIME ZONE '%s'" % timezone)
for entity in schema.entities():
if entity.final or entity.type not in fsschema:
continue
change_attribute_type(entity.type, 'creation_date', 'TZDatetime', ask_confirm=False)
change_attribute_type(entity.type, 'modification_date', 'TZDatetime', ask_confirm=False)
if dbdriver == 'postgres':
sql("SET TIME ZONE UTC")