DEPATISnet: search_patents: `AttributeError: 'exceptions.ValueError' object has no attribute 'read'`

[amotl]

Problem

We've observed an exception in the server log. The issue probably exists for a while already, because the servicing interval of PatZilla decreased significantly.

2025-08-05 00:35:07,714 ERROR    [patzilla.access.dpma.depatisnet         ][MainThread] Problem downloading results in XLS format: time data 'Aug 9, 1995' does not match format '%d.%m.%Y'
Traceback (most recent call last):
  File "/path/to/patzilla/navigator/services/dpma.py", line 65, in status_upstream_depatisnet_handler
    data = dpma_published_data_search_real('pn=EP666666', None)
  File "/path/to/patzilla/navigator/services/dpma.py", line 182, in dpma_published_data_search_real
    data = depatisnet.search_patents(query, options)
  File "/path/to/patzilla/access/dpma/depatisnet.py", line 199, in search_patents
    ex.http_response = ex.read()
AttributeError: 'exceptions.ValueError' object has no attribute 'read'