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Why is there no tuple comprehension in Python?
...se splat * unpacking syntax to unpack a generator expresion:
*(x for x in range(10)),
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Multiple cases in switch statement
...here's nothing wrong with your first method. If however you have very big ranges, just use a series of if statements.
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How do you reindex an array in PHP?
...ou need it to start at one, then use the following:
$iOne = array_combine(range(1, count($arr)), array_values($arr));
Here are the manual pages for the functions used:
array_values()
array_combine()
range()
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How do you detect Credit card type based on number?
...er cards issued using the MasterCard system that do not fall into this IIN range. In 2016, they will add numbers in the range (222100-272099).
American Express: ^3[47][0-9]{5,}$ American Express card numbers start with 34 or 37.
Diners Club: ^3(?:0[0-5]|[68][0-9])[0-9]{4,}$ Diners Club card numbe...
Add one row to pandas DataFrame
...; df = pd.DataFrame(columns=['lib', 'qty1', 'qty2'])
>>> for i in range(5):
>>> df.loc[i] = ['name' + str(i)] + list(randint(10, size=2))
>>> df
lib qty1 qty2
0 name0 3 3
1 name1 2 4
2 name2 2 8
3 name3 2 1
4 name4 9 6
...
Why does the C# compiler go mad on this nested LINQ query?
...yzed, compiles without issue:
static void Main()
{
var x = Enumerable.Range(0, 1).Sum(a);
}
private static int a(int a)
{
return Enumerable.Range(0, 1).Sum(b);
}
private static int b(int b)
{
return Enumerable.Range(0, 1).Sum(c);
}
private static int c(int c)
{
return Enumerable.Ra...
How to do what head, tail, more, less, sed do in Powershell? [closed]
...ns are available in Where-Object (or via Foreach-Object and some state for ranges). Other, transforming, operations can be done with Select-Object and Foreach-Object.
However as PowerShell passes (.NET) objects – with all their typed structure, eg. dates remain DateTime instances – rather than ...
UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 13: ordinal not in range(128)
I'm using NLTK to perform kmeans clustering on my text file in which each line is considered as a document. So for example, my text file is something like this:
...
How to remove an element from a list by index
...ree ways in terms of efficiency:
Assume the following is predefined:
a = range(10)
index = 3
The del object[index] method:
By far the most efficient method. It works will all objects that define a __del__ method.
The disassembly is as follows:
Code:
def del_method():
global a
global ...
What is the difference between UTF-8 and ISO-8859-1?
...ing schemes used to represent alphabets that can be represented within the range of 127 to 255. These various alphabets are defined as "parts" in the format ISO-8859-n, the most familiar of these likely being ISO-8859-1 aka 'Latin-1'. As with UTF-8, 7-bit-safe ASCII remains unaffected regardless of ...