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What is the use of “assert” in Python?
...eter.
As for disabling them, when running python in optimized mode, where __debug__ is False, assert statements will be ignored. Just pass the -O flag:
python -O script.py
See here for the relevant documentation.
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Which is best way to define constants in android, either static class, interface or xml resource?
...ed to make it as configurable, so that application can get appropriate URL based on me build type configuration constant.
So,
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Python JSON serialize a Decimal object
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The problem was that DecimalEncoder()._iterencode(decimal.Decimal('3.9')).next() returned the correct '3.9', but DecimalEncoder()._iterencode(3.9).next() returned a generator object which would only return '3.899...' when you piled on another .next(). Generator f...
How can I perform a str_replace in JavaScript, replacing text in JavaScript?
I want to use str_replace or its similar alternative to replace some text in JavaScript.
21 Answers
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How do I get a list of column names from a psycopg2 cursor?
...it’s not (easily) possible to get column names for views from information_schema.
– wjv
Jun 23 '16 at 7:30
6
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How to change Rails 3 server default port in develoment?
..."rails" with Rails 3 gems installed from the root of your application.
APP_PATH = File.expand_path('../../config/application', __FILE__)
require File.expand_path('../../config/boot', __FILE__)
# THIS IS NEW:
require "rails/commands/server"
module Rails
class Server
def default_options
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What are the differences between type() and isinstance()?
...caters for inheritance (an instance of a derived class is an instance of a base class, too), while checking for equality of type does not (it demands identity of types and rejects instances of subtypes, AKA subclasses).
Normally, in Python, you want your code to support inheritance, of course (sinc...
Dynamically load JS inside JS [duplicate]
...
and use it like:
if (typeof someObject == 'undefined') $.loadScript('url_to_someScript.js', function(){
//Stuff to do after someScript has loaded
});
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Checking if form has been submitted - PHP
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For general check if there was a POST action use:
if (!empty($_POST))
EDIT: As stated in the comments, this method won't work for in some cases (e.g. with check boxes and button without a name). You really should use:
if ($_SERVER['REQUEST_METHOD'] == 'POST')
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Generating all permutations of a given string
... all the permutations of the remaining letters using a recursive call.
The base case is when the input is an empty string the only permutation is the empty string.
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