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Mutable vs immutable objects
...utable objects gets a lot of bad press (e.g. returning an array of strings from a method) but I'm having trouble understanding what the negative impacts are of this. What are the best practices around using mutable objects? Should you avoid them whenever possible?
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Find the most common element in a list
... and performance, a bonus 1-liner version with suitably mangled names:-).
from itertools import groupby as g
def most_common_oneliner(L):
return max(g(sorted(L)), key=lambda(x, v):(len(list(v)),-L.index(x)))[0]
share
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Python unittest - opposite of assertRaises?
... @Shay, IMO you should always exclude the test files themselves from the coverage reports (as they almost always run 100% by definition, you would be artificially inflating the reports)
– Original BBQ Sauce
Oct 16 '19 at 10:55
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What is the difference between Python and IPython?
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ipython is an interactive shell built with python.
From the project website:
IPython provides a rich toolkit to help you make the most out of using Python, with:
Powerful Python shells (terminal and Qt-based).
A web-based notebook with the same core features but...
Is it possible to have multiple statements in a python lambda expression?
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There are several different answers I can give here, from your specific question to more general concerns. So from most specific to most general:
Q. Can you put multiple statements in a lambda?
A. No. But you don't actually need to use a lambda. You can put the statements i...
Undo “git add ”?
...mit". Is there a way to remove this dir and everything contained within it from the commit?
5 Answers
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Git pull without checkout?
I'm used to running git pull and other commands from within a branch I'm working on. But I have set up a development server that several people work on, so I don't want to have to switch branches when I do it. If I want to update an existing branch on the dev server from the github repository we a...
How do I save a stream to a file in C#?
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If this input stream is got from http connection then will it buffer and download and then write all the bytes from the source?????
– dbw
Jan 4 '14 at 14:16
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How can I programmatically get the MAC address of an iphone
...than the actual MAC
Somthing I stumbled across a while ago. Originally from here I modified it a bit and cleaned things up.
IPAddress.h
IPAddress.c
And to use it
InitAddresses();
GetIPAddresses();
GetHWAddresses();
int i;
NSString *deviceIP = nil;
for (i=0; i<MAXADDRS; ++i)
{
static u...
Bootstrap 3 Collapse show state with Chevron icon
Using the core example taken from the Bootstrap 3 Javascript examples page for Collapse ,
I have been able to show the state of collapse using chevron icons.
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