id,node_id,number,title,user,state,locked,assignee,milestone,comments,created_at,updated_at,closed_at,author_association,pull_request,body,repo,type,active_lock_reason,performed_via_github_app,reactions,draft,state_reason
925677191,MDU6SXNzdWU5MjU2NzcxOTE=,289,Mypy fixes for rows_from_file(),857609,closed,0,,,3,2021-06-20T20:34:59Z,2021-06-22T18:44:36Z,2021-06-22T18:13:26Z,NONE,,"Following https://github.com/simonw/sqlite-utils/issues/279#issuecomment-864328927

You had two mypy errors.

The first:

> sqlite_utils/utils.py:157: error: Argument 1 to ""BufferedReader"" has incompatible type ""BinaryIO""; expected ""RawIOBase""

Looking at the `BufferedReader` docs, it seems to expect a `RawIOBase`, and this [has been copied into typeshed](https://github.com/python/typeshed/blob/9ec2f8712480c57353cea097a65d75a2c4ec1846/stdlib/io.pyi#L100). There may be scope to change how `BufferedReader` is documented and typed upstream, but for now it wouldn't be too bad to use a `typing.cast()`:

```
# Detect the format, then call this recursively
buffered = io.BufferedReader(
    cast(io.RawIOBase, fp),  # Undocumented BufferedReader support for BinaryIO
    buffer_size=4096,
)
```

The second error seems to be flagging a legitimate bug in your code:

> sqlite_utils/utils.py:163: error: Argument 1 to ""decode"" of ""bytes"" has incompatible type ""Optional[str]""; expected ""str""

From your type hints, `encoding` may be `None`. In the CSV format block, you use `encoding or ""utf-8-sig""` to set a default, maybe that's desirable in this case too?
",140912432,issue,,,"{""url"": ""https://api.github.com/repos/simonw/sqlite-utils/issues/289/reactions"", ""total_count"": 1, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 1, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,completed
915421499,MDU6SXNzdWU5MTU0MjE0OTk=,267,row.update() or row.pk,12721157,open,0,,,4,2021-06-08T19:56:00Z,2021-06-22T17:27:27Z,,NONE,,"Hi,

fantastic framework for working with Sqlite3 databases!!!

I tried to update spezific rows in a table and used

for row in db[tablename]:
    newValue = row[""counter""] * row[""prize""]    
    row.update({""Fieldname"": newValue})
    print(row)


This updates the value in the printet row, but not in the database. So I switched to

db[tablename].update(id, {""Filedname"": newValue})

This works fine. But row.update would be nicer, because no need for the id (its that row), no need for the tablename and the db (all defined in the for row ... loop).

Thx

",140912432,issue,,,"{""url"": ""https://api.github.com/repos/simonw/sqlite-utils/issues/267/reactions"", ""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,