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What does “hashable” mean in Python?
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From the Python glossary:
An object is hashable if it has a hash value which never changes during its lifetime (it needs a __hash__() method), and can be compared to other objects (it needs an __eq__() or __cmp__() method...
Change a Django form field to a hidden field
...oes without saying, but you'll need to import forms before this will work. from django import forms
– teewuane
Jul 30 '14 at 22:18
2
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How do I make a redirect in PHP?
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@clawr: No, exit() is to prevent the page from showing up the remaining content (think restricted pages). vartec is right, it has nothing to do with the HTTP Location header and you don't need to exit. I chose to include it in my answer because, for someone who doesn...
How do I edit the Visual Studio templates for new C# class/interface?
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For Visual Studio 2012, to remove these from the default class.cs file, the item template could look like this (do not include/remove using statements):
Default Class Template file:
C:\Program Files (x86)\Microsoft Visual Studio 11.0\Common7\IDE\ItemTemplates\CSha...
Profiling Vim startup time
...there's the --startuptime option you can use.
vim --startuptime vim.log
from the help (vim -h):
--startuptime <file> Write startup timing messages to <file>
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I have 2 dates in PHP, how can I run a foreach loop to go through all of those days?
...-01');
$end = new DateTime('2010-05-10');
$interval = DateInterval::createFromDateString('1 day');
$period = new DatePeriod($begin, $interval, $end);
foreach ($period as $dt) {
echo $dt->format("l Y-m-d H:i:s\n");
}
This will output all days in the defined period between $start and $end. ...
Defining and using a variable in batch file
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set "location=bob"
The last syntax prevents inadvertent trailing spaces from getting in the value, and also protects against special characters like & | etc.
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What is a reasonable code coverage % for unit tests (and why)? [closed]
...age with three different
answers. Why?”
The great master stood up from his
chair:
“Come get some fresh tea with me and let’s talk about it.”
After they filled their cups with
smoking hot green tea, the great
master began to answer:
“The first programmer is new a...
Unix's 'ls' sort by name
...BK sort -V will sort by version numbers, so you get .. 2.10.2; 2.10.15; .. from man sort .. --sort=WORD will sort according to WORD: general-numeric -g, human-numeric -h, month -M, numeric -n, random -R, version -V
– mosh
Jan 21 '18 at 15:21
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Why is it string.join(list) instead of list.join(string)?
...s difficult for new-comers.
seq.join(str) introduces unexpected dependency from sequences to str/unicode.
join() as a built-in function would support only specific data types. So using a built in namespace is not good. If join() supports many datatypes, creating optimized implementation would be dif...