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List attributes of an object
...ict__
Then you can test what type is with type() or if is a method with callable().
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Python “raise from” usage
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@laike9m: you mean when you are handling exception foo, and want to raise a new exception bar? Then you can use raise bar from foo and have Python state that foo directly caused bar. If you don't use from foo, then Python will still print both, but state that during handling ...
Accessing private member variables from prototype-defined functions
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No, there's no way to do it. That would essentially be scoping in reverse.
Methods defined inside the constructor have access to private variables because all functions have access to the scope in which they were defined.
Methods defined on a prototype are not defin...
How can I split and parse a string in Python?
...t a string on space, get a list, show its type, print it out:
el@apollo:~/foo$ python
>>> mystring = "What does the fox say?"
>>> mylist = mystring.split(" ")
>>> print type(mylist)
<type 'list'>
>>> print mylist
['What', 'does', 'the', 'fox', 'say?']
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How to sort with a lambda?
...lt;iterator>
#include <iostream>
#include <sstream>
struct Foo
{
Foo() : _i(0) {};
int _i;
friend std::ostream& operator<<(std::ostream& os, const Foo& f)
{
os << f._i;
return os;
};
};
typedef std::vector<Foo> Vect...
Dynamically access object property using variable
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You inspired me to create an enhanced version that allows bracket notation & property names with spaces as well as validating the inputs: it.knightnet.org.uk/kb/node-js/get-properties
– Julian Knight
Jan 3 '19 at 14:04
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Autoreload of modules in IPython [duplicate]
Is there a way to have IPython automatically reload all changed code? Either before each line is executed in the shell or failing that when it is specifically requested to. I'm doing a lot of exploratory programming using IPython and SciPy and it's quite a pain to have to manually reload each module...
Sorting object property by values
...ou like, thus achieving exactly what you set out to do. That would work in all the browsers I know of, but it would be dependent on an implementation quirk, and could break at any time. You should never make assumptions about the order of elements in a JavaScript object.
var objSorted = {}
sortable....
Python: try statement in a single line
...ther dynamic languages. The safer way (and the prevailing style) is to set all variables to something. If they might not get set, set them to None first (or 0 or '' or something if it is more applicable.)
If you do assign all the names you are interested in first, you do have options.
The best...
How can I use if/else in a dictionary comprehension?
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@Marcin's answer covers it all, but just in case someone wants to see an actual example, I add two below:
Let's say you have the following dictionary of sets
d = {'key1': {'a', 'b', 'c'}, 'key2': {'foo', 'bar'}, 'key3': {'so', 'sad'}}
and you want ...