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Groups > comp.lang.python > #46339
| From | Grant Edwards <invalid@invalid.invalid> |
|---|---|
| Newsgroups | comp.lang.python |
| Subject | Re: Python #ifdef |
| Date | 2013-05-28 20:42 +0000 |
| Organization | PANIX Public Access Internet and UNIX, NYC |
| Message-ID | <ko34rq$m2s$1@reader1.panix.com> (permalink) |
| References | (1 earlier) <mailman.2318.1369770916.3114.python-list@python.org> <b0kgm4F3gs4U1@mid.individual.net> <mailman.2320.1369771667.3114.python-list@python.org> <ko334b$83c$1@reader1.panix.com> <mailman.2322.1369772569.3114.python-list@python.org> |
On 2013-05-28, Carlos Nepomuceno <carlosnepomuceno@outlook.com> wrote:
> [...]
>> You're trying to make this a lot harder than it really is:
>>
>> if sys.version_info[0] == 3:
>> def original(n):
>> m = 0
>> for b in n.to_bytes(6, 'big'):
>> m = 256*m + b
>> return m
>> else:
>> def original(n):
>> <something else?>
>
> Haha! That's it!!!
>
> Just realized how funny this can be: ;)
Here's the important lesson from this thread:
Instead of asking "how do I write X in Python" where yoy've assumed X
is the solution to your problem, you're usually better off asking how
to solve the underlying problem in a Pythonic way.
IOW, instead of asking about a Python preprocessor (which you have
assumed is the solution to the problem because that's how you would do
it in C), ask about the actual problem (how to define a function
differently depending on Python version).
People on this list are very inventive and will expend a surprising
amount of time to figure out often too-clever ways to do X because you
asked how to do X -- even if doing X is a lousy way to solve your
actual problem...
When asking how do I solve a problem, it's OK to illustrate that
question with an example X of how you would solve it in C or Java or
Ruby or Perl or whatever, but remember
1) Not everybody here knows C or Java or Ruby or Perl or whatever,
and the person who _does_ know everyting there is to know about
solving some particular underlying problem isn't going to go
learn a new language so that they can understand your example and
figure out what you're trying to accomplish.
2) Programming languages differ. X may be the best way to solve the
problem in one language, but it might be an awful way to do it in
another language.
--
Grant Edwards grant.b.edwards Yow! I'm ANN LANDERS!!
at I can SHOPLIFT!!
gmail.com
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Re: Python #ifdef Joel Goldstick <joel.goldstick@gmail.com> - 2013-05-28 15:49 -0400
Re: Python #ifdef Neil Cerutti <neilc@norwich.edu> - 2013-05-28 20:00 +0000
RE: Python #ifdef Carlos Nepomuceno <carlosnepomuceno@outlook.com> - 2013-05-28 23:07 +0300
Re: Python #ifdef Grant Edwards <invalid@invalid.invalid> - 2013-05-28 20:12 +0000
RE: Python #ifdef Carlos Nepomuceno <carlosnepomuceno@outlook.com> - 2013-05-28 23:22 +0300
Re: Python #ifdef Grant Edwards <invalid@invalid.invalid> - 2013-05-28 20:42 +0000
RE: Python #ifdef Carlos Nepomuceno <carlosnepomuceno@outlook.com> - 2013-05-28 23:54 +0300
Re: Python #ifdef Grant Edwards <invalid@invalid.invalid> - 2013-05-29 14:45 +0000
RE: Python #ifdef Fábio Santos <fabiosantosart@gmail.com> - 2013-05-28 21:34 +0100
RE: Python #ifdef Carlos Nepomuceno <carlosnepomuceno@outlook.com> - 2013-05-28 23:48 +0300
RE: Python #ifdef Fábio Santos <fabiosantosart@gmail.com> - 2013-05-28 23:51 +0100
RE: Python #ifdef Benjamin Kaplan <benjamin.kaplan@case.edu> - 2013-05-28 13:14 -0700
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