Pyhon 2.x or 3.x, which is faster?
Steven D'Aprano
steve at pearwood.info
Tue Mar 8 21:01:53 EST 2016
On Wed, 9 Mar 2016 11:34 am, Michael Torrie wrote:
> There are some interesting differences I found between a Python 2 string
> (composed of bytes) and a Python 3 byte string, such as what you'd get
> from calling read() on a file handle opened in binary mode. That is in
> Python 2, indexing a string returns a string of length 1. In Python
> 3.5, indexing a byte string returns a value, the equivalent of calling
> ord() on the single byte string.
Yes, this sadly turned out to be a mistake, and one which we're probably
stuck with.
> This makes it a bit difficult to make
> the code easily work between Python 2 and 3 and handle bytes. Any ideas
> there?
Use a single byte slice:
the_bytes[i:i+1]
which works identically in Python 2 and 3.
--
Steven
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