Installing gemfeed, ValueError time data does not match

Found the gemfeed atom feed tool for Gemini at https://lists.orbitalfox.eu/archives/gemini/2020/000502.html, but it didn't work in my environment:

#  ./gemfeed.py -b gemini://tanso.net -d /srv/gemini/files/diary/
Generating feed "diary", which should be served from gemini://tanso.net/atom.xml
Traceback (most recent call last):
  File "./gemfeed.py", line 223, in <module>
    main()
  File "./gemfeed.py", line 220, in main
    args.verbose)
  File "./gemfeed.py", line 160, in build_feed
    populate_entry_from_file(filename, base_url, entry, time_func)
  File "./gemfeed.py", line 97, in populate_entry_from_file
    updated = get_update_time(filename, time_func)
  File "./gemfeed.py", line 116, in get_update_time
    return datetime.datetime.strptime(date, "%Y-%m-%d %z")
  File "/usr/lib64/python3.6/_strptime.py", line 565, in _strptime_datetime
    tt, fraction = _strptime(data_string, format)
  File "/usr/lib64/python3.6/_strptime.py", line 362, in _strptime
    (data_string, format))
ValueError: time data '2020-11-17 Z' does not match format '%Y-%m-%d %z'

Fixed it by this small change:

diff --git a/gemfeed.py b/gemfeed.py
index 93d5886..73ec159 100755
--- a/gemfeed.py
+++ b/gemfeed.py
@@ -112,8 +112,8 @@ def get_update_time(filename, time_func):
     # Check for leading YYYY-MM-DD
     basename = os.path.basename(filename)
     if re.search("^[0-9]{4}-[01][0-9]-[0-3][0-9]", basename):
-        date = basename[0:10] + " Z" # Add UTC marker
-        return datetime.datetime.strptime(date, "%Y-%m-%d %z")
+        date = basename[0:10]
+        return datetime.datetime.strptime(, "%Y-%m-%d").replace(tzinfo=datetime.timezone.utc)
     else:
         updated = time_func(filename)
         return datetime.datetime.fromtimestamp(updated, tz=datetime.timezone.utc)

Suggested patch sent to solderpunk.

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