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Python if-else short-hand [duplicate]
...most readable way is
x = 10 if a > b else 11
but you can use and and or, too:
x = a > b and 10 or 11
The "Zen of Python" says that "readability counts", though, so go for the first way.
Also, the and-or trick will fail if you put a variable instead of 10 and it evaluates to False.
Howe...
Base64 length calculation?
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Each character is used to represent 6 bits (log2(64) = 6).
Therefore 4 chars are used to represent 4 * 6 = 24 bits = 3 bytes.
So you need 4*(n/3) chars to represent n bytes, and this needs to be rounded up to a multiple of 4.
The number of unused padding chars resulting from the roundin...
Get unique values from a list in python [duplicate]
...e beginning, instead of a list. Then your code should be:
output = set()
for x in trends:
output.add(x)
print(output)
As it has been pointed out, sets do not maintain the original order. If you need that, you should look for an ordered set implementation (see this question for more).
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NumPy or Pandas: Keeping array type as integer while having a NaN value
...e a preferred way to keep the data type of a numpy array fixed as int (or int64 or whatever), while still having an element inside listed as numpy.NaN ?
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What's the difference between and , and ?
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They have the same effect on normal web browser rendering engines, but there is a fundamental difference between them.
As the author writes in a discussion list post:
Think of three different situations:
web browsers
blind people
mobile phones
"Bold...
How to make an empty div take space
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it works if you remove floating. http://jsbin.com/izoca/2/edit
with floats it only works if theres some content e.g.  
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Check OS version in Swift?
I'm trying to check system information in Swift. I figured out, that it could be achieved by code:
19 Answers
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Dependency Injection vs Factory Pattern
Most of the examples quoted for usage of Dependency Injection, we can solve using the factory pattern as well. Looks like when it comes to usage/design the difference between dependency injection and factory is blurred or thin.
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how to check if a file is a directory or regular file in python? [duplicate]
How do you check if a path is a directory or file in python?
4 Answers
4
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What is a Python egg?
I'm new to Python and am just trying to understand how its packages work. Presumably "eggs" are some sort of packaging mechanism, but what would be a quick overview of what role they play and may be some information on why they're useful and how to create them?
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