html_url,issue_url,id,node_id,user,user_label,created_at,updated_at,author_association,body,reactions,issue,issue_label,performed_via_github_app
https://github.com/simonw/sqlite-utils/issues/416#issuecomment-1116684581,https://api.github.com/repos/simonw/sqlite-utils/issues/416,1116684581,IC_kwDOCGYnMM5Cj0El,638427,mattkiefer,2022-05-03T21:36:49Z,2022-05-03T21:36:49Z,NONE,"Thanks for addressing this @simonw! However, I just reinstalled sqlite-utils 3.26.1 and get an `ParserError: Unknown string format: None`:
```
sqlite-utils --version
sqlite-utils, version 3.26.1
```
```
sqlite-utils convert idfpr.db license ""Original Issue Date"" ""r.parsedate(value)""
Traceback (most recent call last):
  File ""/home/matt/.local/lib/python3.9/site-packages/sqlite_utils/db.py"", line 2514, in convert_value
    return fn(v)
  File ""<string>"", line 2, in fn
  File ""/home/matt/.local/lib/python3.9/site-packages/sqlite_utils/recipes.py"", line 19, in parsedate
    parser.parse(value, dayfirst=dayfirst, yearfirst=yearfirst)
  File ""/usr/lib/python3/dist-packages/dateutil/parser/_parser.py"", line 1374, in parse
    return DEFAULTPARSER.parse(timestr, **kwargs)
  File ""/usr/lib/python3/dist-packages/dateutil/parser/_parser.py"", line 649, in parse
    raise ParserError(""Unknown string format: %s"", timestr)
dateutil.parser._parser.ParserError: Unknown string format: None
Traceback (most recent call last):
  File ""/home/matt/.local/bin/sqlite-utils"", line 8, in <module>
    sys.exit(cli())
  File ""/usr/lib/python3/dist-packages/click/core.py"", line 829, in __call__
    return self.main(*args, **kwargs)
  File ""/usr/lib/python3/dist-packages/click/core.py"", line 782, in main
    rv = self.invoke(ctx)
  File ""/usr/lib/python3/dist-packages/click/core.py"", line 1259, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File ""/usr/lib/python3/dist-packages/click/core.py"", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File ""/usr/lib/python3/dist-packages/click/core.py"", line 610, in invoke
    return callback(*args, **kwargs)
  File ""/home/matt/.local/lib/python3.9/site-packages/sqlite_utils/cli.py"", line 2707, in convert
    db[table].convert(
  File ""/home/matt/.local/lib/python3.9/site-packages/sqlite_utils/db.py"", line 2530, in convert
    self.db.execute(sql, where_args or [])
  File ""/home/matt/.local/lib/python3.9/site-packages/sqlite_utils/db.py"", line 463, in execute
    return self.conn.execute(sql, parameters)
sqlite3.OperationalError: user-defined function raised exception
```
I definitely have some invalid data in the db. Happy to send a copy if it's helpful.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1173023272,Options for how `r.parsedate()` should handle invalid dates,