#15980: Meta-ticket for Python 3.3+ preparation - stage 1
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Reporter: wluebbe | Owner:
Type: enhancement | Status: new
Priority: major | Milestone: sage-6.2
Component: distribution | Keywords: python3
Merged in: | Authors:
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
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This ticket tracks a number of other tickets that relate to various tasks
to prepare Sage code for Python 3.
[[br]]
The following table lists those fixers from
[[http://docs.python.org/2.7/library/2to3.html?highlight=2to3#|2to3]]
that are applicable for stage 1.
//stage 1// includes those 2to3 fixers that produce code which can run on
Python 2.7 (possibly using some
[[http://docs.python.org/2.7/library/__future__.html?highlight=__future__#__future__|from
__future__ import ...]]
or
[[http://docs.python.org/2.7/library/future_builtins.html?highlight=future#future_builtins|from
future_builtins import ...]]).
The code will usually not run on Python 3.
[[br]]
//stage 2// has those 2to3 fixers (and possibly others) that produce code
which can run on Python 3 (more precisely Python 3.3+).
The code can run on Python 2 only with the support of imported
"compatibility" libraries.
[[br]]
After completion of stage 1 and 2 Sage should have a single, common code
base for Python 2.7 and Python 3.3+.
||No. ||2to3 fixer ||see ticket ||Comment ||
|| 1||apply ||none ||Nothing to change ||
|| 3||buffer ||none ||Nothing to change ||
|| 4||callable ||none ||No need to change (reintroduced in
Python 3.2) ||
|| 5||dict ||TBD ||about 755 changes; details see ticket ||
|| 6||except ||TBD ||about 128 changes; details see ticket ||
|| 11||funcattr ||TBD ||about 18 changes; since Py2.6 compatible
fcts available ||
|| 12||future ||none ||do NOT run, as we want to keep {{{from
__future__ import xxx}}} ||
|| 13||getcwdu ||none ||Nothing to change ||
|| 14||has_key ||ticket:15784 ||Nothing to change, since already done
||
|| 15||idioms ||TBD ||about 333 changes; details see ticket ||
|| 16||import ||TBD ||about 2,252 changes; with {{{from
__future__ import absolute_import}}}, details see ticket ||
|| 19||input ||none ||Nothing to change ||
|| 20||intern ||none ||Nothing to change ||
|| 21||isinstance ||none ||Nothing to change ||
|| 27||methodattrs ||TBD ||about 19 changes; since Py2.6 compatible
fcts available ||
|| 28||ne ||ticket:15734 ||Nothing to change, since already done
||
|| 31||numliterals ||TBD ||about 2 changes; details see ticket ||
|| 32||operator ||none ||Nothing to change ||
|| 33||paren ||TBD ||about 3 changes; details see ticket ||
|| 34||print ||TBD ||about 1,172 changes; with {{{from
__future__ import print_function}}}, details see ticket ||
|| 35||raise ||TBD ||about 3,187 changes; details see ticket
||
|| 38||renames ||TBD ||about 5 changes; details see ticket ||
|| 39||repr ||TBD ||about 7 changes; details see ticket ||
|| 40||future ||none ||do NOT run, as it is mere style change
||
|| 41||standard_error ||none ||Nothing to change ||
|| 42||sys_exc ||none ||Nothing to change ||
|| 43||throw ||none ||Nothing to change ||
|| 44||tuple_params ||TBD ||about 68 changes; details see ticket ||
|| 45||types ||TBD ||about 4 changes; details see ticket ||
|| 48||ws_comma ||none ||do NOT run; about 13,049 changes; just
to enhance readability and PEP8 compliance ||
|| 50||throw ||none ||Nothing to change ||
|| || || ||the following changes do not relate to
2to3 ||
|| 61||divison ||TBD ||up to 410 modules; with {{{from
__future__ import division}}}, details see ticket ||
* Note 1: The //No.// in the above table is an enumeration of the fixers
of {{{lib2to3/fixes/*}}}.
* Note 2: No. starting with denote fixers not included in
{{{lib2to3/fixes/*}}}.
--
Ticket URL: <http://trac.sagemath.org/ticket/15980>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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