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'str' object does not support item assignment in Python
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105
In Python, strings are immutable, so you can't change their characters in-place.
You can, how...
Python argparse: default value or specified value
...rgparse.ArgumentParser()
parser.add_argument('--example', nargs='?', const=1, type=int)
args = parser.parse_args()
print(args)
% test.py
Namespace(example=None)
% test.py --example
Namespace(example=1)
% test.py --example 2
Namespace(example=2)
nargs='?' means 0-or-1 arguments
const=1 sets...
Declare slice or make slice?
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edited May 23 '17 at 12:34
Community♦
111 silver badge
answered Aug 28 '14 at 8:21
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Anonymous recursive PHP functions
...rence
$factorial = function( $n ) use ( &$factorial ) {
if( $n == 1 ) return 1;
return $factorial( $n - 1 ) * $n;
};
print $factorial( 5 );
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How can I convert the “arguments” object to an array in JavaScript?
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How do I check for null values in JavaScript?
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How to position a div in the middle of the screen when the page is bigger than the screen
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Get the index of the nth occurrence of a string?
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How do I tell Matplotlib to create a second (new) plot, then later plot on the old one?
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155
If you find yourself doing things like this regularly it may be worth investigating the object...
Is there a way to check if int is legal enum in C#?
... page:
using System;
[Flags] public enum PetType
{
None = 0, Dog = 1, Cat = 2, Rodent = 4, Bird = 8, Reptile = 16, Other = 32
};
public class Example
{
public static void Main()
{
object value;
// Call IsDefined with underlying integral value of member.
value = ...