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Transpose list of lists
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How about
map(list, zip(*l))
--> [[1, 4, 7], [2, 5, 8], [3, 6, 9]]
For python 3.x users can use
list(map(list, zip(*l)))
Explanation:
There are two things we need to know to understand what's going on:
The signature of zip: zip(*iterables) This means zip expects an arb...
How to check internet access on Android? InetAddress never times out
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58 Answers
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Regex to validate password strength
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438
You can do these checks using positive look ahead assertions:
^(?=.*[A-Z].*[A-Z])(?=.*[!@#$&a...
How do I convert a Vector of bytes (u8) to a string
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To convert a slice of bytes to a string slice (assuming a UTF-8 encoding):
use std::str;
//
// pub fn from_utf8(v: &[u8]) -> Result<&str, Utf8Error>
//
// Assuming buf: &[u8]
//
fn main() {
let buf = &[0x41u8, 0x41u8, 0x42u8];
let s = match str::fro...
Delete files older than 3 months old in a directory using .NET
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18 Answers
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Parsing IPv6 extension headers containing unknown extensions
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edited Jul 8 '13 at 15:06
answered Jul 8 '13 at 14:16
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ruby 1.9: invalid byte sequence in UTF-8
... The problem is that I now receive a lot of " invalid byte sequence in UTF-8 " errors.
From what I understood, the net/http library doesn't have any encoding specific options and the stuff that comes in is basically not properly tagged.
What would be the best way to actually work with that inc...
Regex for password must contain at least eight characters, at least one number and both lower and up
...s, at least one letter and one number:
"^(?=.*[A-Za-z])(?=.*\d)[A-Za-z\d]{8,}$"
Minimum eight characters, at least one letter, one number and one special character:
"^(?=.*[A-Za-z])(?=.*\d)(?=.*[@$!%*#?&])[A-Za-z\d@$!%*#?&]{8,}$"
Minimum eight characters, at least one uppercase letter,...
Undefined method 'task' using Rake 0.9.0
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8 Answers
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Is ASCII code 7-bit or 8-bit?
My teacher told me ASCII is 8-bit character coding scheme. But it is defined only for 0-127 codes which means it can be fit into 7-bits. So can't it be argued that ASCII bit is actually 7-bit code?
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