Message 341283 - Python tracker

Message341283

Author	serhiy.storchaka
Recipients	dirn, eric.smith, gregory.p.smith, serhiy.storchaka, steven.daprano, xtreak
Date	2019-05-02.16:30:52
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1556814653.33.0.0157819227396.issue36774@roundup.psfhosted.org>
In-reply-to

Content
To implement converting printf-style string formatting into f-string expressions (see issue28307) I need to add new convertors: 'd': int(x) where x is a number, used for %d, %u, %i 'i': operator.index(i), used for %x, %o, %b 'f': float(x) where x is a number, used for %f, %g, %e They may be private, only exposed in the AST between optimizer and code generator. But they can also be supported by Python grammar and str.format() if there is a use case for this. If 'd' be used for other purposes, I will need to find other character for converting a number to integer (with possible truncation). Any suggestions?

Content

To implement converting printf-style string formatting into f-string expressions (see issue28307) I need to add new convertors:

'd': int(x) where x is a number, used for %d, %u, %i
'i': operator.index(i), used for %x, %o, %b
'f': float(x) where x is a number, used for %f, %g, %e

They may be private, only exposed in the AST between optimizer and code generator. But they can also be supported by Python grammar and str.format() if there is a use case for this.

If 'd' be used for other purposes, I will need to find other character for converting a number to integer (with possible truncation). Any suggestions?

History
Date	User	Action	Args
2019-05-02 16:30:53	serhiy.storchaka	set	recipients: + serhiy.storchaka, gregory.p.smith, eric.smith, steven.daprano, dirn, xtreak
2019-05-02 16:30:53	serhiy.storchaka	set	messageid: <1556814653.33.0.0157819227396.issue36774@roundup.psfhosted.org>
2019-05-02 16:30:53	serhiy.storchaka	link	issue36774 messages
2019-05-02 16:30:52	serhiy.storchaka	create