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How to import a module given its name as string?
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324
With Python older than 2.7/3.1, that's pretty much how you do it.
For newer versions, see impo...
What's the $unwind operator in MongoDB?
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242
First off, welcome to MongoDB!
The thing to remember is that MongoDB employs an "NoSQL" appro...
Average of 3 long integers
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142
This code will work, but isn't that pretty.
It first divides all three values (it floors the v...
How to print the full traceback without halting the program?
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634
Some other answer have already pointed out the traceback module.
Please notice that with print_...
Why does “_” (underscore) match “-” (hyphen)?
...rary number of characters (including zero characters).
(From section 3.3.4.7. Pattern Matching in the MySQL documentation.)
If you want to use the underscore in like as a literal, you have to escape it:
select * from a where name like '%taz\_manual%.pdf%';
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Get the latest record from mongodb collection
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142
This is a rehash of the previous answer but it's more likely to work on different mongodb versi...
Find object in list that has attribute equal to some value (that meets any condition)
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468
next((x for x in test_list if x.value == value), None)
This gets the first item from the list...
What is the use of “assert” in Python?
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1143
The assert statement exists in almost every programming language. It helps detect problems earl...
How to set selected value of jquery select2?
This belong to codes prior to select2 version 4
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