On Tue, 11 Oct 2016 18:19:23 +0100, Martijn Pieters wrote:
> On 11 October 2016 at 17:50, Pierre-Yves David <
> pierre-yves.da...@ens-lyon.org> wrote:
> >  I'm trying to double review this (to have it move from hg-commited to
> > public phase) and this is a bit too obscure for me (I assume there was much
> > more context around the py3 table). Martijn can you give me a bit more
> > context about what it going on here? What problem are we fixing and how is
> > this the right way to do it ?
> >
> This fixes open(filename, 'r'), open(filename, 'w'), etc. calls. In Python
> 3, that second argument *must* be a string, you can't use bytes.
> The fix is the same as used with getattr() (where the second argument must
> also always be a string); in the tokenizer, where we detect calls, if there
> is something that looks like a call to open (and is not an attribute, so
> the previous token is not a "." dot) then make sure that that second
> argument is not converted to a `bytes` object instead.
> You can compare this to the "if fn in ('getattr', 'setattr', 'hasattr',
> 'safehasattr'):" block above this change.

FWIW, the current transformer will also rewrite open(f('foo')).
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