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Convert nested Python dict to object?
I'm searching for an elegant way to get data using attribute access on a dict with some nested dicts and lists (i.e. javascript-style object syntax).
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Create an empty list in python with certain size
...ion to create a list:
>>> def display():
... s1 = []
... for i in range(9): # This is just to tell you how to create a list.
... s1.append(i)
... return s1
...
>>> print display()
[0, 1, 2, 3, 4, 5, 6, 7, 8]
List comprehension (Using the squares because for ...
Django Passing Custom Form Parameters to Formset
I have a Django Form that looks like this:
12 Answers
12
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How to find event listeners on a DOM node when debugging or from the JavaScript code?
... to find out which event listeners are observing a particular DOM node and for what event?
19 Answers
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Use underscore inside Angular controllers
...underscore has already been loaded on the page
}]);
And then you can ask for the _ in your app's module:
// Declare it as a dependency of your module
var app = angular.module('app', ['underscore']);
// And then inject it where you need it
app.controller('Ctrl', function($scope, _) {
// do stuf...
Converting string from snake_case to CamelCase in Ruby
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If you're using Rails, String#camelize is what you're looking for.
"active_record".camelize # => "ActiveRecord"
"active_record".camelize(:lower) # => "activeRecord"
If you want to get an actual class, you should use String#constantize on top of that.
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Use cases for the 'setdefault' dict method
...dition of collections.defaultdict in Python 2.5 greatly reduced the need for dict 's setdefault method. This question is for our collective education:
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Extracting text from HTML file using Python
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I tried both html2text and nltk but they didn't work for me. I ended up going with Beautiful Soup 4, which works beautifully (no pun intended).
– Ryan Shea
Apr 30 '15 at 18:58
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Inject errors into already validated form?
After my form.Form validates the user input values I pass them to a separate (external) process for further processing. This external process can potentially find further errors in the values.
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define() vs. const
...ine() accepts any expression as name. This allows to do things like this:
for ($i = 0; $i < 32; ++$i) {
define('BIT_' . $i, 1 << $i);
}
consts are always case sensitive, whereas define() allows you to define case insensitive constants by passing true as the third argument (Note: defin...