Traceback (most recent call last):


 "/usr/bin/ntfy", line 8, in <module>

sys.exit(main())


 "/usr/lib/python3.8/site-packages/ntfy/cli.py", line 362, in main

return notify(


 "/usr/lib/python3.8/site-packages/ntfy/__init__.py", line 29, in notify

for backend in config.get('backends', ['default']):
TypeError: 'NoneType' object is not iterable

Traceback (most recent call last):


 "/home/zhongjianping/anaconda3/envs/open-mmlab/lib/python3.7/site-packages/pip/_internal/cli/base_command.py", line 153, in _main

status = self.run(options, args)


 "/home/zhongjianping/anaconda3/envs/open-mmlab/lib/python3.7/site-packages/pip/_internal/commands/install.py", line 382, in run

resolver.resolve(requirement_set)


 "/home/zhongjianping/anaconda3/envs/open-mmlab/lib/python3.7/site-packages/pip/_internal/legacy_resolve.py", line 201, in resolve

self._resolve_one(requirement_set, req)


 "/home/zhongjianping/anaconda3/envs/open-mmlab/lib/python3.7/site-packages/pip/_internal/legacy_resolve.py", line 365, in _resolve_one

abstract_dist = self._get_abstract_dist_for(req_to_install)


 "/home/zhongjianping/anaconda3/envs/open-mmlab/lib/python3.7/site-packages/pip/_internal/legacy_resolve.py", line 295, in _get_abstract_dist_for

req, self.require_hashes, self.use_user_site, self.finder,


 "/home/zhongjianping/anaconda3/envs/open-mmlab/lib/python3.7/site-packages/pip/_internal/operations/prepare.py", line 258, in prepare_editable_requirement

req, self.req_tracker, finder, self.build_isolation,


 "/home/zhongjianping/anaconda3/envs/open-mmlab/lib/python3.7/site-packages/pip/_internal/operations/prepare.py", line 49, in _get_prepared_distribution

abstract_dist.prepare_distribution_metadata(finder, build_isolation)


 "/home/zhongjianping/anaconda3/envs/open-mmlab/lib/python3.7/site-packages/pip/_internal/distributions/source/legacy.py", line 39, in prepare_distribution_metadata

self.req.prepare_metadata()


 "/home/zhongjianping/anaconda3/envs/open-mmlab/lib/python3.7/site-packages/pip/_internal/req/req_install.py", line 563, in prepare_metadata

self.metadata_directory = metadata_generator(self)


 "/home/zhongjianping/anaconda3/envs/open-mmlab/lib/python3.7/site-packages/pip/_internal/operations/generate_metadata.py", line 124, in _generate_metadata_legacy

command_desc='python setup.py egg_info',


 "/home/zhongjianping/anaconda3/envs/open-mmlab/lib/python3.7/site-packages/pip/_internal/utils/subprocess.py", line 242, in call_subprocess

raise InstallationError(exc_msg)
pip._internal.exceptions.InstallationError: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.
