If there is an empty body returned, such as in the case of the response
to an es9p notification, then it is of course also legal to not set the
content-type header.
This patch fixes an exception when talking to certain SM-DP+ with
es9p_client.py:
DEBUG:pySim.esim.http_json_api:HTTP RSP-STS: [204] hdr: {'X-Admin-Protocol': 'gsma/rsp/v2.5.0', 'Date': 'Wed, 28 Jan 2026 18:26:39 GMT', 'Server': 'REDACTED'}
DEBUG:pySim.esim.http_json_api:HTTP RSP: b''
{'X-Admin-Protocol': 'gsma/rsp/v2.5.0', 'Date': 'Wed, 28 Jan 2026 18:26:39 GMT', 'Server': 'REDACTED'}
<Response [204]>
Traceback (most recent call last):
File "gprojects/git/pysim/es9p/../contrib/es9p_client.py", line 315, in <module>
c.do_notification()
~~~~~~~~~~~~~~~~~^^
File "projects/git/pysim/es9p/../contrib/es9p_client.py", line 159, in do_notification
res = self.peer.call_handleNotification(data)
File "projects/git/pysim/contrib/pySim/esim/es9p.py", line 174, in call_handleNotification
return self.handleNotification.call(data)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^
File "projects/git/pysim/contrib/pySim/esim/http_json_api.py", line 335, in call
if not response.headers.get('Content-Type').startswith(req_headers['Content-Type']):
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'NoneType' object has no attribute 'startswith'
Change-Id: I99e8f167b7bb869c5ff6d908ba673dac87fef71a
e0a9e73267