[issue24549] string.format() should have a safe_substitute equivalent, to be run consecutively

[azrdev]

azrdev added the comment:

(Sorry for not replying so long, I expected an email notification)

> Why not use string.Template?

because it's so slow

> I think that there may be a good argument to be made for a safe_format with 
> *named* arguments, like string.Template, but not positional arguments.

Yes!

> But that would require some discussion, to decide on the correct behaviour.

What open question(s) do you think of?


For context, I got the idea for this from Qts .arg() which can be chained, see 
<https://doc.qt.io/qt-5/qstring.html#arg>.

--

___
Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue24549>
___
___
Python-bugs-list mailing list
Unsubscribe: 
https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com

[issue24549] string.format() should have a safe_substitute equivalent, to be run consecutively

[azrdev]

New submission from azrdev:

{1} {0}.format('one').format('two')

should return two one, but throws

IndexError: tuple index out of range


This would allow partial replacements, similar to 
string.Template.safe_substitute()
I suggest an analog construction (e.g. a method string.safe_format() )

--
components: Library (Lib)
messages: 246047
nosy: azrdev
priority: normal
severity: normal
status: open
title: string.format() should have a safe_substitute equivalent, to be run 
consecutively
type: enhancement

___
Python tracker rep...@bugs.python.org
http://bugs.python.org/issue24549
___
___
Python-bugs-list mailing list
Unsubscribe: 
https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com