On Sat, 29 Sep 2012 00:48:54 +0300
Serhiy Storchaka
Since Python 2.3 many open-like functions supports "Universal line mode" (PEP 278 [1]). Since 3.0 (and 2.6) PEP 3116 [2] suggests better alternative -- io.TextWrapper.
In issue15204 [3] proposed to deprecate "U" mode in open-like functions. In fact I found only three places where "U" mode is mentioned in the standard library:
* builtin open (io.open) (almost ignored); * fileinput (transparently passed to open); * zipfile (inefficient and inconsistent implementation).
I'm ok on the principle, I just think we should minimize disruption (I don't think the "U" mode adds a lot of complexity to the code). Regards Antoine. -- Software development and contracting: http://pro.pitrou.net