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How to get the return value from a thread in python?
...:39
wim
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answered Nov 13 '19 at 3:18
Ramarao Amara...
How do I use raw_input in Python 3
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balphabalpha
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...
Why is it slower to iterate over a small string than a small list?
...thon3 -m timeit '[x for x in ["a", "b", "c"]]'
1000000 loops, best of 3: 0.436 usec per loop
This disagrees with what you've found...
You must be using Python 2, then.
>>> python2 -m timeit '[x for x in "abc"]'
1000000 loops, best of 3: 0.309 usec per loop
>>> python2 -m timei...
Re-raise exception with a different type and message, preserving existing information
...
Python 3 introduced exception chaining (as described in PEP 3134). This allows, when raising an exception, to cite an existing exception as the “cause”:
try:
frobnicate()
except KeyError as exc:
raise ValueError("Bad grape") from exc
The caught exception (exc, a KeyError) th...
Is it ever advantageous to use 'goto' in a language that supports loops and functions? If so, why?
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247
There are a few reasons for using the "goto" statement that I'm aware of (some have spoken to t...
sqlalchemy unique across multiple columns
... Wang Dingwei
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answered Apr 8 '12 at 7:26
vanvan
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Removing duplicate objects with Underscore for Javascript
....unique accepts a callback
var list = [{a:1,b:5},{a:1,c:5},{a:2},{a:3},{a:4},{a:3},{a:2}];
var uniqueList = _.uniq(list, function(item, key, a) {
return item.a;
});
// uniqueList = [Object {a=1, b=5}, Object {a=2}, Object {a=3}, Object {a=4}]
Notes:
Callback return value used for compari...
'printf' vs. 'cout' in C++
... instead of just printing them. For example, printing of something like 0x0424 is just crazy. This is caused by std::cout mixing state and actual values. I never saw a language where something like std::setfill would be a type (other than C++, of course). printf clearly separates arguments and actua...
What is a clean, pythonic way to have multiple constructors in Python?
... |
edited Mar 7 '16 at 0:41
Elias Zamaria
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a...
CMake: Print out all accessible variables in a script
...
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