I was trying to run a lister packagist and I encountered this error.
(swh) utkarsh@G3:~/swh-environment$ swh scheduler --url http://localhost:5008/ task add \ > list-packagist-full --policy oneshot /home/utkarsh/.virtualenvs/swh/lib/python3.7/site-packages/swh/scheduler/__init__.py:69: DeprecationWarning: Call to deprecated class SWHRemoteAPI. (Use the RPCClient instead) -- Deprecated since version 0.0.64. return SchedulerBackend(**args) Traceback (most recent call last): File "/home/utkarsh/.virtualenvs/swh/bin/swh", line 11, in <module> load_entry_point('swh.core', 'console_scripts', 'swh')() File "/home/utkarsh/swh-environment/swh-core/swh/core/cli/__init__.py", line 56, in main return swh(auto_envvar_prefix='SWH') File "/home/utkarsh/.virtualenvs/swh/lib/python3.7/site-packages/click/core.py", line 764, in __call__ return self.main(*args, **kwargs) File "/home/utkarsh/.virtualenvs/swh/lib/python3.7/site-packages/click/core.py", line 717, in main rv = self.invoke(ctx) File "/home/utkarsh/.virtualenvs/swh/lib/python3.7/site-packages/click/core.py", line 1137, in invoke return _process_result(sub_ctx.command.invoke(sub_ctx)) File "/home/utkarsh/.virtualenvs/swh/lib/python3.7/site-packages/click/core.py", line 1137, in invoke return _process_result(sub_ctx.command.invoke(sub_ctx)) File "/home/utkarsh/.virtualenvs/swh/lib/python3.7/site-packages/click/core.py", line 1137, in invoke return _process_result(sub_ctx.command.invoke(sub_ctx)) File "/home/utkarsh/.virtualenvs/swh/lib/python3.7/site-packages/click/core.py", line 956, in invoke return ctx.invoke(self.callback, **ctx.params) File "/home/utkarsh/.virtualenvs/swh/lib/python3.7/site-packages/click/core.py", line 555, in invoke return callback(*args, **kwargs) File "/home/utkarsh/.virtualenvs/swh/lib/python3.7/site-packages/click/decorators.py", line 17, in new_func return f(get_current_context(), *args, **kwargs) File "/home/utkarsh/.virtualenvs/swh/lib/python3.7/site-packages/swh/scheduler/cli/task.py", line 271, in schedule_task output.append(pretty_print_task(task)) File "/home/utkarsh/.virtualenvs/swh/lib/python3.7/site-packages/swh/scheduler/cli/task.py", line 119, in pretty_print_task "%s (%s)" % (next_run.humanize(locale=ARROW_LOCALE), File "/home/utkarsh/.virtualenvs/swh/lib/python3.7/site-packages/arrow/arrow.py", line 851, in humanize locale = locales.get_locale(locale) File "/home/utkarsh/.virtualenvs/swh/lib/python3.7/site-packages/arrow/locales.py", line 20, in get_locale raise ValueError("Unsupported locale '{}'".format(name)) ValueError: Unsupported locale 'en_IN'