Ошибка при запуске scanner-a

python3 ./manage.py sopds_scanner scan
Traceback (most recent call last):
File "./manage.py", line 10, in <module>
execute_from_command_line(sys.argv)
File "/usr/lib/python3.6/site-packages/django/core/management/__init__.py", line 371, in execute_from_command_line
utility.execute()
File "/usr/lib/python3.6/site-packages/django/core/management/__init__.py", line 365, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/usr/lib/python3.6/site-packages/django/core/management/__init__.py", line 216, in fetch_command
klass = load_command_class(app_name, subcommand)
File "/usr/lib/python3.6/site-packages/django/core/management/__init__.py", line 36, in load_command_class
module = import_module('%s.management.commands.%s' % (app_name, name))
File "/usr/lib64/python3.6/importlib/__init__.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 994, in _gcd_import
File "<frozen importlib._bootstrap>", line 971, in _find_and_load
File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 678, in exec_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
File "/mnt/prog/sopds/opds_catalog/management/commands/sopds_scanner.py", line 6, in <module>
from apscheduler.schedulers.blocking import BlockingScheduler
File "/usr/lib/python3.6/site-packages/apscheduler/schedulers/blocking.py", line 5, in <module>
from apscheduler.schedulers.base import BaseScheduler, STATE_STOPPED
File "/usr/lib/python3.6/site-packages/apscheduler/schedulers/base.py", line 12, in <module>
from tzlocal import get_localzone
ImportError: cannot import name 'get_localzone'