Crash when running any gsutil command

calling `gsutil` (or anything really `gsutil ...`) results in the following, tried to remove the `~/.config/gcloud` folder with no success

```
Traceback (most recent call last):
File "/home/me/gcloud/lib/googlecloudsdk/core/feature_flags/config.py", line 55, in ReturnCachedOrCallFunc
return cached_results[args]
KeyError: ('MY@EMAIL.COM', 'MYPROJECTID')

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/home/me/gcloud/bin/bootstrapping/gsutil.py", line 167, in
exceptions.HandleError(e, 'gsutil')
File "/home/me/gcloud/lib/googlecloudsdk/calliope/exceptions.py", line 547, in HandleError
core_exceptions.reraise(exc)
File "/home/me/gcloud/lib/googlecloudsdk/core/exceptions.py", line 146, in reraise
six.reraise(type(exc_value), exc_value, tb)
File "/home/me/gcloud/lib/third_party/six/__init__.py", line 693, in reraise
raise value
File "/home/me/gcloud/bin/bootstrapping/gsutil.py", line 165, in
main()
File "/home/me/gcloud/bin/bootstrapping/gsutil.py", line 146, in main
bootstrapping.ExecutePythonTool('platform/gsutil', 'gsutil', *args)
File "/home/me/gcloud/bin/bootstrapping/bootstrapping.py", line 126, in ExecutePythonTool
**extra_popen_kwargs)
File "/home/me/gcloud/bin/bootstrapping/bootstrapping.py", line 218, in _ExecuteTool
args + sys.argv[1:], env=_GetToolEnv(), **extra_popen_kwargs)
File "/home/me/gcloud/lib/googlecloudsdk/core/execution_utils.py", line 384, in Exec
**extra_popen_kwargs)
File "/home/me/gcloud/lib/googlecloudsdk/core/execution_utils.py", line 306, in _Exec
p = subprocess.Popen(args, env=_GetToolEnv(env=env), **extra_popen_kwargs)
File "/home/me/gcloud/lib/googlecloudsdk/core/execution_utils.py", line 159, in _GetToolEnv
env, p.EnvironmentName(), p.Get(required=False, validate=False))
File "/home/me/gcloud/lib/googlecloudsdk/core/properties.py", line 3360, in Get
property_value = self.GetPropertyValue(required, validate)
File "/home/me/gcloud/lib/googlecloudsdk/core/properties.py", line 3381, in GetPropertyValue
required)
File "/home/me/gcloud/lib/googlecloudsdk/core/properties.py", line 3701, in _GetProperty
property_value = _GetPropertyWithoutDefault(prop, properties_file)
File "/home/me/gcloud/lib/googlecloudsdk/core/properties.py", line 3765, in _GetPropertyWithoutDefault
GetValueFromFeatureFlag(prop),
File "/home/me/gcloud/lib/googlecloudsdk/core/properties.py", line 3727, in GetValueFromFeatureFlag
VALUES.core.account.Get(), VALUES.core.project.Get())
File "/home/me/gcloud/lib/googlecloudsdk/core/feature_flags/config.py", line 57, in ReturnCachedOrCallFunc
result = func(*args)
File "/home/me/gcloud/lib/googlecloudsdk/core/feature_flags/config.py", line 113, in GetFeatureFlagsConfig
yaml_data = FetchFeatureFlagsConfig()
File "/home/me/gcloud/lib/googlecloudsdk/core/feature_flags/config.py", line 83, in FetchFeatureFlagsConfig
response = yaml_request.get(_FEATURE_FLAG_YAML_URL)
File "/home/me/gcloud/lib/third_party/requests/sessions.py", line 546, in get
return self.request('GET', url, **kwargs)
File "/home/me/gcloud/lib/googlecloudsdk/core/transport.py", line 251, in WrappedRequest
response = orig_request(*modified_args, **modified_kwargs)
File "/home/me/gcloud/lib/googlecloudsdk/core/requests.py", line 216, in WrappedRequest
return orig_request_method(*args, **kwargs)
File "/home/me/gcloud/lib/third_party/requests/sessions.py", line 533, in request
resp = self.send(prep, **send_kwargs)
File "/home/me/gcloud/lib/third_party/requests/sessions.py", line 646, in send
r = adapter.send(request, **kwargs)
File "/home/me/gcloud/lib/third_party/requests/adapters.py", line 449, in send
timeout=timeout
File "/home/me/gcloud/lib/third_party/urllib3/connectionpool.py", line 677, in urlopen
chunked=chunked,
File "/home/me/gcloud/lib/third_party/urllib3/connectionpool.py", line 392, in _make_request
conn.request(method, url, **httplib_request_kw)
File "/usr/lib/python3.6/http/client.py", line 1285, in request
self._send_request(method, url, body, headers, encode_chunked)
File "/usr/lib/python3.6/http/client.py", line 1331, in _send_request
self.endheaders(body, encode_chunked=encode_chunked)
File "/usr/lib/python3.6/http/client.py", line 1280, in endheaders
self._send_output(message_body, encode_chunked=encode_chunked)
File "/usr/lib/python3.6/http/client.py", line 1046, in _send_output
self.send(msg)
File "/usr/lib/python3.6/http/client.py", line 1006, in send
self.sock.sendall(data)
File "/home/me/gcloud/lib/third_party/urllib3/contrib/pyopenssl.py", line 352, in sendall
data[total_sent : total_sent + SSL_WRITE_BLOCKSIZE]
File "/home/me/gcloud/lib/third_party/urllib3/contrib/pyopenssl.py", line 340, in _send_until_done
return self.connection.send(data)
File "/home/me/.local/lib/python3.6/site-packages/OpenSSL/SSL.py", line 1644, in send
with _from_buffer(buf) as data:
AttributeError: __enter__

```

Reproduce the crash with a gsutil command, then trace the reported path from bin/bootstrapping/gsutil.py through core/feature_flags/config.py and core/requests.py to third_party/urllib3/contrib/pyopenssl.py. Compare the failing OpenSSL call and verify that gsutil commands complete without this traceback.

Written by the indexing model from the issue text.