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What does enumerate() mean?
...rt, it loops over the elements of an iterable (like a list), as well as an index number, combined in a tuple:
for item in enumerate(["a", "b", "c"]):
print item
prints
(0, "a")
(1, "b")
(2, "c")
It's helpful if you want to loop over a sequence (or other iterable thing), and also want to ha...
What is 'YTowOnt9'?
...e64 encoded PHP-serialized values do too, but when they are empty they are all the same. It makes it look as if a lot of very different PHP scripts have this random string in common.
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Nginx reverse proxy causing 504 Gateway Timeout
...nd it had to do with not using a keep-alive on the connection. I can't actually answer why this is but, in clearing the connection header I solved this issue and the request was proxied just fine:
server {
location / {
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header ...
How to make good reproducible pandas examples
...]:
B
A
1 5
4 6
But say what's incorrect: the A column is in the index rather than a column.
do show you've done some research (search the docs, search StackOverflow), give a summary:
The docstring for sum simply states "Compute sum of group values"
The groupby docs don't give any...
C++ sorting and keeping track of indexes
...ce of samples in ascending order, but I also want to remember the original indexes of the new samples.
15 Answers
...
How to make rounded percentages add up to 100%
...equence = original
.Zip(Enumerable.Range(0, int.MaxValue), (x, index) => new { x, index })
.OrderBy(a => original[a.index] - rounded[a.index])
.ThenByDescending(a => a.index)
.Select(a => a.index).ToList();
}
else
{
appl...
Convert seconds to Hour:Minute:Second
...e amount of days in the year starting with 0. You can obviously review the php date manual to cater to your specific needs.
– Nightwolf
Aug 11 '16 at 6:51
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JavaScript equivalent to printf/String.Format
...s into an Array, whether it was originally or not, and the key will be the index (0, 1, 2...) of each array element coerced into a string (eg, "0", so "\\{0\\}" for your first regexp pattern).
Neat.
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How do I get a substring of a string in Python?
...ieve this is by string slicing.
MyString[a:b] gives you a substring from index a to (b - 1).
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Logical operators for boolean indexing in Pandas
I'm working with boolean index in Pandas.
The question is why the statement:
3 Answers
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