Hi RH,
translate methods might be faster (and a little easier to read) for your use
case. Just precompute and re-use the translation table punct_flatten.
Note that the translate method has changed somewhat for Python 3 due to the
separation of text from bytes. The is a Python 3 version.
from urllib.parse import urlparse
flattened_chars = "./&=?"
punct_flatten = str.maketrans(flattened_chars, '_' * len(flattened_chars))
parts = urlparse('http://alongnameofasite1234567.com/q?sports=run&a=1&b=1')
unflattened = parts.netloc + parts.path + parts.query
flattened = unflattened.translate(punct_flatten)
print (flattened)
Cheers,
Nick
On Thursday, 7 February 2013 08:41:05 UTC+11, rh wrote:
> I am curious to know if others would have done this differently. And if so
>
> how so?
>
>
>
> This converts a url to a more easily managed filename, stripping the
>
> http protocol off.
>
>
>
> This:
>
>
>
> http://alongnameofasite1234567.com/q?sports=run&a=1&b=1
>
>
>
> becomes this:
>
>
>
> alongnameofasite1234567_com_q_sports_run_a_1_b_1
>
>
>
>
>
> def u2f(u):
>
> nx = re.compile(r'https?://(.+)$')
>
> u = nx.search(u).group(1)
>
> ux = re.compile(r'([-:./?&=]+)')
>
> return ux.sub('_', u)
>
>
>
> One alternate is to not do the compile step. There must also be a way to
>
> do it all at once. i.e. remove the protocol and replace the chars.
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