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Run the futurize tool to convert to python 2 and 3 compatible code: https://pypi.org/project/future/ $ futurize -wn -u **.py
Choose between true div and floor div and remove references to old_div. Since all files now have a from __future__ import division statement, both division operators (/ and //) will behave the same in Python 2 and 3 (with the Python 3 behavior).
Add a standard set of __future__ imports so that all the code will behave consistently accross the whole library. Otherwise, new code may be caught by a missing "from __future__ import division" and would get a different behavior than in another file of Bart.
* Add dependency on "future" package. It is used to provide Python-3-like helpers and modules that will run on both Python 2 and Python 3 * Add Python 3 as supported language * Use setup.py in .travis.yml so the requirements are aligned as much as possible
Since a number of builtins like zip and map are returning iterators in Python 3 (instead of lists in Python 2), 2to3 adds calls to list() everywhere. Remove most of them as they are usually not needed.
2to3 seems to convert dict.iteritems() to iter(dict.items()) since .items() will return an iterator in Python 3 and a list in Python 2. This distinction is irrelevant in most places, so remove useless calls to iter().
In Python 3, class.method returns a function an not an unbound method as it used to in Python 2. This makes inspect.ismethod(class.method) False, so replace inspect.ismethod() with callable() builtin that will work in both cases. Also remove the use of dir() since it is meant for interactive use. Replace with inspect.getmembers(). Improve the debugging experience by using a function instead of a lambda to make it easier to find.
Since integers don't have limited size in Python 3, sys.maxint is gone. Replace its use by sys.maxsize, which is the closest approximation.
TRAPpy does not require separate trace.txt and trace.raw.txt anymore.
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That PR has been used for a few months now successfully using lisa-next (https://github.com/ARM-software/lisa/tree/next). As we seem to be the main user, I'll merge that PR in a week unless somebody screams :-) |
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Please go ahead :-)
…On Fri, Feb 1, 2019, 4:55 PM Douglas Raillard ***@***.*** wrote:
That PR has been used for a few months now successfully using lisa-next (
https://github.com/ARM-software/lisa/tree/next). As we seem to be the
main user, I'll merge that PR in a week unless somebody screams :-)
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Does this have build errors still? |
Author
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Let's update setup.py to see ... |
Author
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Looks like the tests are passing, with an intermittent failure: |
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Add Python 3 support using the past package, and its 2to3-based futurize script: https://pypi.org/project/past/
TODO: update the required version of TRAPpy once its Python 3 PR is merged
TypeError in TRAPpy are fixed by its Python 3 PR and will go away once merged