```lang=python3,counterexample
$ ssh login-buster.toolforge.org
$ become bd808-test
$ webservice shell
Traceback (most recent call last):
File "/usr/local/bin/webservice", line 33, in <module>
sys.exit(load_entry_point('toolforge-webservice==0.103.8', 'console_scripts', 'webservice')())
File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 489, in load_entry_point
return get_distribution(dist).load_entry_point(group, name)
File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 2793, in load_entry_point
return ep.load()
File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 2411, in load
return self.resolve()
File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 2417, in resolve
module = __import__(self.module_name, fromlist=['__name__'], level=0)
File "/usr/lib/python3/dist-packages/toolsws/cli/webservice.py", line 12, in <module>
from toolsws.backends import Backend, KubernetesBackend
File "/usr/lib/python3/dist-packages/toolsws/backends/__init__.py", line 2, in <module>
from .kubernetes import KubernetesBackend
File "/usr/lib/python3/dist-packages/toolsws/backends/kubernetes.py", line 201, in <module>
class KubernetesBackend(Backend):
File "/usr/lib/python3/dist-packages/toolsws/backends/kubernetes.py", line 396, in KubernetesBackend
def _get_pod_security_context(self) -> dict[str, Any]:
TypeError: 'type' object is not subscriptable
$ python3 --version
Python 3.7.3
```
The mypy type annotations are causing Python 3.7 to crash.