stderr swallowed when using visidata as pager

Description

When using visidata as pager, stderr is swallowed.

There are a few tickets about similar issues (#1200, #1275) but after reading those tickets I don’t know that there is a solution that works.

Interestingly, litecli works properly! Here are my configs and some examples:

pgcli config:

[main]
pager = kw /usr/local/bin/vd -f csv
table_format = csv
less_chatty = True
prompt = '> '

litecli config:

[main]
multi_line = False
pager = kw /usr/local/bin/vd
table_format = tsv
less_chatty = True

kw is “kitty window” that opens the output in a split, as you can see in the screenshots:

Visidata works as pager:

But stderr swallowed:

Visidata works as pager in litecli:

But stderr is not swallowed:

For some reason using Visidata only works as a pager in pgcli with csv format and not tsv (like I have set with litecli). If set to tsv, the pager seems to be ignored.

Running on Mac Big Sur 11.6.4 and pgcli version Version: 3.4.1.

[amjith]

I’m able to reproduce the issue. I’ll take a deeper look into why this is happening. Sorry about the issue.

[kbd]

I think it would be nice if stderr wasn’t read by Visidata though, and instead just printed out in the command line.

Given that litecli works the right way – it prints the error inline (see original screenshot) – why can’t pgcli?