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How can I time a code segment for testing performance with Pythons timeit?
...when you set its number argument)
import time
def myfast():
code
n = 10000
t0 = time.time()
for i in range(n): myfast()
t1 = time.time()
total_n = t1-t0
In Windows, as Corey stated in the comment, time.clock() has much higher precision (microsecond instead of second) and is preferred over t...
When should I use cross apply over inner join?
...bleFun(O.name) F
where F.schema_id= O.schema_id
Edit:
Note:
Informix 12.10 xC2+ has Lateral Derived Tables and Postgresql (9.3+) has Lateral Subqueries which can be used to a similar effect.
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Change a Django form field to a hidden field
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edited Oct 10 '13 at 16:29
answered Jul 28 '11 at 16:33
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Weighted random numbers
...verkill.
– sellibitze
Nov 19 '09 at 10:02
2
I assume when you say "in order" you are purposely om...
Is errno thread-safe?
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10
Really? When did they do that? When I was doing C programming, trusting errno was a big problem.
– Paul Tomblin
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Which is more preferable to use: lambda functions or nested functions ('def')?
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108
If you need to assign the lambda to a name, use a def instead. defs are just syntactic sugar f...
How to base64 encode image in linux bash / shell
...d paste.
– user285594
Mar 13 '14 at 10:45
1
What's wrong with base64 DSC_0251.JPG? There is no ne...
What is the most efficient way to store a list in the Django models?
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answered Jul 10 '09 at 15:23
Andrew HareAndrew Hare
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Is it possible to declare two variables of different types in a for loop?
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for (auto p = std::make_pair(5, std::string("Hello World")); p.first < 10; ++p.first) {
std::cout << p.second << std::endl;
}
std::make_pair will return the two arguments in a std::pair. The elements can be accessed with .first and .second.
For more than two objects, you'll n...