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Author eric.smith
Recipients eric.smith, gvanrossum, martin.panter, serhiy.storchaka, yselivanov
Date 2016-11-29.01:13:51
SpamBayes Score -1.0
Marked as misclassified Yes
Message-id <1480382031.72.0.783551723103.issue28827@psf.upfronthosting.co.za>
In-reply-to
Content 
I think this is documented. This is a result of supported nested expressions in the format_spec:

>>> an_x = "X"
>>> f'{10:02{an_x}}'
'0A'
History
Date User Action Args
2016-11-29 01:13:51eric.smithsetrecipients: + eric.smith, gvanrossum, martin.panter, serhiy.storchaka, yselivanov
2016-11-29 01:13:51eric.smithsetmessageid: <1480382031.72.0.783551723103.issue28827@psf.upfronthosting.co.za>
2016-11-29 01:13:51eric.smithlinkissue28827 messages
2016-11-29 01:13:51eric.smithcreate