Why is array.array('u') deprecated?

[jonathan.slenders at gmail.com]

Le vendredi 8 mai 2015 15:11:56 UTC+2, Peter Otten a écrit :
> > So, this works perfectly fine and fast. But it scares me that it's
> > deprecated and Python 4 will not support it anymore.
> 
> Hm, this doesn't even work with Python 3:

My mistake. I should have tested better.

> >>> data = array.array("u", u"x"*1000)
> >>> data[100] = "y"
> >>> re.search("y", data)
> Traceback (most recent call last):
>   File "<stdin>", line 1, in <module>
>   File "/usr/lib/python3.4/re.py", line 166, in search
>     return _compile(pattern, flags).search(string)
> TypeError: can't use a string pattern on a bytes-like object
> 
> You can search for bytes
> 
> >>> re.search(b"y", data)
> <_sre.SRE_Match object; span=(400, 401), match=b'y'>
> >>> data[101] = "z"
> >>> re.search(b"y", data)
> <_sre.SRE_Match object; span=(400, 401), match=b'y'>
> >>> re.search(b"yz", data)
> >>> re.search(b"y\0\0\0z", data)
> <_sre.SRE_Match object; span=(400, 405), match=b'y\x00\x00\x00z'>
> 
> but if that is good enough you can use a bytearray in the first place.

Maybe I'll try that. Thanks for the suggestions!

Jonathan