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{:2X} didn't output what I expected


On Tue, Mar 20, 2018 at 10:46 AM,  <jfong at ms4.hinet.net> wrote:
> D:\Temp>py
> Python 3.4.4 (v3.4.4:737efcadf5a6, Dec 20 2015, 19:28:18) [MSC v.1600 32 bit (Intel)] on win32
> Type "help", "copyright", "credits" or "license" for more information.
>>>> '{:02X}'.format(256)
> '100'
>>>>
> What I expected is '00'. Am I wrong?
>

Python avoids losing data. If you really want to enforce that this is
two characters long, you can either restrict the data first (maybe
with "% 256"), or trim the resulting string:

>>> '{:02X}'.format(256)[-2:]
'00'

ChrisA