On 15-04-09, Alexander Belopolsky wrote:

On Thu, Apr 9, 2015 at 3:07 PM, Isaac Schwabacher wrote:

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No, it does not. Please read the documentation: "self must be aware (self.tzinfo must not be None, and self.utcoffset() must not return None)."

Whoops, you're right. But that's even worse-- it doesn't give you a way to convert a naive datetime at all. Currently the only way from "2013-11-03 01:30:00" to "2013-11-03 01:30:00-0500 America/Chicago" is still datetime.replace().

Well, you are right, but at least we do have a localtime utility hidden in the email package:

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from datetime import * from email.utils import localtime print(localtime(datetime.now())) 2015-04-09 15:19:12.840000-04:00

You can read http://bugs.python.org/issue9527 for the reasons it did not make into datetime.

But that's restricted to the system time zone. Nothing good ever comes from the system time zone... ijs