[PATCH 2 of 3] py3: factor out bytechr() function

[Martijn Pieters]

On 8 March 2017 at 07:52, Yuya Nishihara <yuya at tcha.org> wrote:

> +_keepalnum = ''.join(c for c in map(pycompat.bytechr, range(256))
> +                     if not c.isalnum())
>

You probably want to make pycompat.bytechr a local name too, to 256
attribute lookups. Also, for `str.join` only, you want to use a list comp
here, not a generator expression, as it is faster and more memory efficient:

_xchar = pycompat.bytechr
_keepalnum = ''.join(c for c in map(_xchar, range(256))
                     if not c.isalnum())

-- 
Martijn Pieters
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