R. David Murray added the comment:
The reason the codes are not documented is that they are not supported.
Because we delegate to the system strftime, they happen to work.
To change that the most sensible thing would be to have our own strftime
implementation, which makes this essentially a
New submission from Kevin :
When using %F and %T in strftime on Mac and Linux the function works as
expected, but it fails on Windows. Although these format strings are not in
the Python documentation, the inconsistent behavior should be noted or
corrected. If possible, the %F and %T could b
