I think the latest version can now strptime offsets of the form ±HH:MM with %z, so there's no longer anything blocking you from parsing from all isoformat() outputs with strptime, provided you know which one you need.

I think a from_isoformat() like method that *only* supports isoformat outputs is a fine idea, though, with a fairly obvious interface. I'd be happy to take a crack at it (I've been working on the somewhat harder problem of an iso8601 compliant parser for dateutil, so this is fresh in my mind).

On November 28, 2017 2:51:14 PM EST, Mike Miller <python-dev@mgmiller.net> wrote:
This may have gotten bogged down again.  Could we get the output of 
datetime.isoformat() parsed at a minimum?  Perfection is not required.

Looks like there is a patch or two and test cases on the bug.

-Mike


 Could anyone put this five year-old bug about parsing iso8601 format date-times 
 on the front burner?
 
      http://bugs.python.org/issue15873
 
 In the comments there's a lot of hand-wringing about different variations that 
 bogged it down, but right now I only need it to handle the output of 
 datetime.isoformat():
 
      >>> dt.isoformat()
      '2017-10-20T08:20:08.986166+00:00'
 
 Perhaps if we could get that minimum first step in, it could be iterated on and 
 made more lenient in the future.
 

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