New submission from Terry J. Reedy:
Idle calltips are currently limited to 75 (signature) or 70 (doc line) chars.
This is insufficient for some stdlib signatures. Example:
>>> from http.client import HTTPConnection
>>> import inspect
>>> fob=HTTPConnection.__init__
>>> line=inspect.formatargspec(*inspect.getfullargspec(fob))
>>> line, len(line)
('(self, host, port=None, strict=<object object at 0x03125148>, timeout=<object
object at 0x01FF7408>, source_address=None)', 121)
The truncated tip displayed is "(self, host, port=None, strict=<object object
at 0x03125148>, timeout=<object obj ..."
Given that Idle is a graphics application, not a 80-char text console
application, there is no obvious reason for the particular restriction other
that esthetics. The tip is in a popup window that is separate from the shell or
editor window where '(' was typed. On my widescreen monitor, there is room for,
say, 200 chars. If I move the underlying window to the far right, so there is
not enough room for even the truncated "HTTPConnection(" tip, Windows just
truncates it further, as with any other window.
Serhiy, if you have a *nix machine, can you verify that there is no problem
with that either?
The limits appear in multiple places in CallTipWindow.showtip and
CallTips.get_argspec. Since get_argspec truncates a docstring line to less that
showtip allows, there is no ' ...' added and showtip only affects inspect
signatures. Get_argspec could leave length enforcement, whatever we decide it
should be, to showtip.
I think the first thing to do is replace the multiple hard-coded numbers with
one named constant.
----------
assignee: terry.reedy
messages: 208716
nosy: serhiy.storchaka, terry.reedy
priority: normal
severity: normal
stage: test needed
status: open
title: Idle: increase max calltip width
type: enhancement
versions: Python 2.7, Python 3.3, Python 3.4
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue20338>
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