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Python's many ways of string formatting — are the older ones (going to be) deprecated?
...mal deprecation no longer on the cards, but the current docs are openly acknowledging that % formatting at least has some "benefits" over the other approaches.
I'd infer from all this that the movement to deprecate or remove % formatting has not only faltered, but been defeated thoroughly and perma...
How do I check if a variable exists?
I want to check if a variable exists. Now I'm doing something like this:
11 Answers
11...
Possibility of duplicate Mongo ObjectId's being generated in two different collections?
...ee possibilities can occur where you won't get a unique ID (please let me know if there are more):
Before this discussion, recall that the BSON Object ID consists of:
[4 bytes seconds since epoch, 3 bytes machine hash, 2 bytes process ID, 3 bytes counter]
Here are the three possibilities, so you ...
Optional query string parameters in ASP.NET Web API
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This issue has been fixed in the regular release of MVC4.
Now you can do:
public string GetFindBooks(string author="", string title="", string isbn="", string somethingelse="", DateTime? date= null)
{
// ...
}
and everything will work out of the box.
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Sort a list by multiple attributes?
...th sort on 2 criteria and use reverse=True. In case someone else wants to know how, you can wrap your criteria (functions) in parenthesis:
s = sorted(my_list, key=lambda i: ( criteria_1(i), criteria_2(i) ), reverse=True)
s...
Is there any way to post events to Google Analytics via server-side API? [closed]
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It is now possible (and easy) to track Analytics data from the server-side. With the launch of Universal Analytics, you can now use the Measurement Protocol to post data to the GA servers.
Code samples here
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Getting distance between two points based on latitude/longitude
...("Result:", distance)
print("Should be:", 278.546, "km")
The distance is now returning the correct value of 278.545589351 km.
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What does the “yield” keyword do?
... print(i)
0
1
4
Here it's a useless example, but it's handy when you know your function will return a huge set of values that you will only need to read once.
To master yield, you must understand that when you call the function, the code you have written in the function body does not run. The ...
Can't get Gulp to run: cannot find module 'gulp-util'
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So with a 150K views on this question alone, I'd love to know what the root cause of this is... This occurs quite frequently for me and I'm guessing I'm not the only one. This adds up to a lot of wasted time!
– cloakedninjas
Jul 7 '17 at 9:41
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Calling C/C++ from Python?
...7
g++ -shared -Wl,-soname,_code.so -o _code.so code.o code_wrap.o
We can now use the function in Python scripts:
#!/usr/bin/env python
import code
a= [[3,5,7],[8,10,12]]
print a
b = code.average(a)
print "Assignment done"
print a
print b
...