Hello,
concerning the porting of Sagelib(*) to Python 3, I propose to
eventually add
from __future__ import print_function, division, absolute_import,
unicode_literals
to *every* .py(x) file in Sagelib (even those modules which don't print,
don't divide, don't import and don't have literals). The reason is twofold:
- whenever we add such a future import, we force new code to use
printing/division/imports/literals compatible with Python 3.
- adding the future import serves as documentation that a particular
module has been ported to Python 3, at least for the aspects which the
future statements enforce.
We obviously do not have to add all these imports all at once, we can
gradually add them while we port code to Python 3. I already added a few
__future__.division imports while I was porting some divisions.
What do you think?
Jeroen.
(*) As opposed to Sage-the-distribution, Sagelib refers to the Python
package "sage" with sources in $SAGE_ROOT/src/sage
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