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Is there shorthand for returning a default value if None in Python? [duplicate]
...s also returns "default" if x is any falsy value, including an empty list, 0, empty string, or even datetime.time(0) (midnight).
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Changing a specific column name in pandas DataFrame
...columns = {'two':'new_name'})
In [28]: df
Out[28]:
one three new_name
0 1 a 9
1 2 b 8
2 3 c 7
3 4 d 6
4 5 e 5
Following is the docstring for the rename method.
Definition: df.rename(self, index=None, columns=None, co...
What is C# analog of C++ std::pair?
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330
Tuples are available since .NET4.0 and support generics:
Tuple<string, int> t = new Tuple...
Method Resolution Order (MRO) in new-style classes?
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answered Dec 4 '09 at 18:03
Alex MartelliAlex Martelli
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git stash blunder: git stash pop and ended up with merge conflicts
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edited Jun 20 at 9:12
Community♦
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answered May 15 '10 at 16:56
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What do 'lazy' and 'greedy' mean in the context of regular expressions?
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Mibac
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answered Feb 20 '10 at 6:22
SampsonSampson
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how to get the cookies from a php curl into a variable
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edited May 7 '15 at 13:50
answered May 21 '09 at 23:55
TM...
What does jquery $ actually return?
...et like an
array or access individual elements
via the indexer ($(sel)[0] for
example). More importantly, you can
also apply jQuery functions against
all the selected elements.
About returning nothing:
Does it always return an array? Does it return null?
You always get the same thi...
How to detect total available/free disk space on the iPhone/iPad device?
...n working for me:
-(uint64_t)getFreeDiskspace {
uint64_t totalSpace = 0;
uint64_t totalFreeSpace = 0;
NSError *error = nil;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSDictionary *dictionary = [[NSFileManager defaultMan...
Is there a “do … while” loop in Ruby?
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