curses: add set_tabsize and set_escdelay

[asottile]

BPO	38312
Nosy	@serhiy-storchaka, @asottile, @ammaraskar
PRs	bpo-38312: Add curses.{get,set}_escdelay and curses.{get,set}_tabsize #16938

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = None
closed_at = <Date 2019-10-31.09:14:27.595>
created_at = <Date 2019-09-29.01:40:08.396>
labels = ['extension-modules', '3.9']
title = 'curses: add `set_tabsize` and `set_escdelay`'
updated_at = <Date 2019-10-31.09:14:27.594>
user = 'https://github.com/asottile'

bugs.python.org fields:

activity = <Date 2019-10-31.09:14:27.594>
actor = 'serhiy.storchaka'
assignee = 'none'
closed = True
closed_date = <Date 2019-10-31.09:14:27.595>
closer = 'serhiy.storchaka'
components = ['Extension Modules']
creation = <Date 2019-09-29.01:40:08.396>
creator = 'Anthony Sottile'
dependencies = []
files = []
hgrepos = []
issue_num = 38312
keywords = ['patch']
message_count = 5.0
messages = ['353477', '353479', '355683', '355685', '355743']
nosy_count = 3.0
nosy_names = ['serhiy.storchaka', 'Anthony Sottile', 'ammar2']
pr_nums = ['16938']
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = None
url = 'https://bugs.python.org/issue38312'
versions = ['Python 3.9']

[asottile]

https://linux.die.net/man/3/set_escdelay
https://linux.die.net/man/3/set_tabsize

I'd like to help with this, but I don't even know where to start with argumentclinic -- any points would be greatly appreciated

presumably I should also add getters for these as well to retrieve the global variable from the curses side?

[ammaraskar]

I'd like to help with this, but I don't even know where to start with argumentclinic -- any points would be greatly appreciated

Are you asking about argumentclinic in general or something specific to this bug? If it's something specific feel free to ignore the following:

You can find a basic tutorial on argumentclinic here https://docs.python.org/3/howto/clinic.html#basic-concepts-and-usage

Essentially, you'll be adding something along these lines into _cursesmodule.c

/*[clinic input]
_curses.set_escdelay
size: int
bla bla description for size.
/

One line description.

Extended description. Spanning over
multiple lines.
[clinic start generated code]*/

after which you can run python3 [Tools/clinic/clinic.py](https://github.com/python/cpython/blob/main/Tools/clinic/clinic.py) _cursesmodule.c which will update the file and place the stub for the method in there.

[serhiy-storchaka]

There are also ncurses functions get_tabsize() and get_escdelay(). In other implementations they can be modeled by returning the TABSIZE and ESCDELAY global variables.

[asottile]

ah, I'll add those too -- I can do that in the current PR

[serhiy-storchaka]

New changeset b32cb97 by Serhiy Storchaka (Anthony Sottile) in branch 'master':
bpo-38312: Add curses.{get,set}_escdelay and curses.{get,set}_tabsize. (GH-16938)
b32cb97