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How to get method parameter names?
...ious code object properties for you.
>>> inspect.getfullargspec(a_method)
(['arg1', 'arg2'], None, None, None)
The other results are the name of the *args and **kwargs variables, and the defaults provided. ie.
>>> def foo(a, b, c=4, *arglist, **keywords): pass
>>> ins...
What are inline namespaces for?
...e header <vector> might have looked like this:
namespace std {
#if __cplusplus < 1997L // pre-standard C++
inline
#endif
namespace pre_cxx_1997 {
template <class T> __vector_impl; // implementation class
template <class T> // e.g. w/o allocator argumen...
Converting integer to string in Python
... string is done with the builtin str() function, which basically calls the __str__() method of its parameter.
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What is the instanceof operator in JavaScript?
...there.
Every object in JavaScript has a prototype, accessible through the __proto__ property. Functions also have a prototype property, which is the initial __proto__ for any objects created by them. When a function is created, it is given a unique object for prototype. The instanceof operator uses...
Is there a standard way to list names of Python modules in a package?
...tforward way to list the names of all modules in a package, without using __all__ ?
10 Answers
...
Macro vs Function in C
... int numButtons;
};
struct webpage
{
int numButtons;
};
#define num_button_holes(shirt) ((shirt).numButtons * 4)
struct webpage page;
page.numButtons = 2;
num_button_holes(page) -> 8
Finally, macros can be difficult to debug, producing weird syntax errors or runtime errors that you ha...
pip issue installing almost any library
...you are using with your conda environment. You should do this in your root/base conda environment, if you have conda installed
– hobs
Apr 12 '18 at 18:55
1
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Java: parse int value from a char
...
System.out.println(c & 0b1111); // => '5' & 0b1111 => 0b0011_0101 & 0b0000_1111 => 5
// '0' & 0b1111 => 0b0011_0000 & 0b0000_1111 => 0
// '1' & 0b1111 => 0b0011_0001 & 0b0000_1111 => 1
// '2' & 0b1111 => 0b0011_0010 & 0b0000_1111 => 2
...
Traverse a list in reverse order in Python
...
You can do:
for item in my_list[::-1]:
print item
(Or whatever you want to do in the for loop.)
The [::-1] slice reverses the list in the for loop (but won't actually modify your list "permanently").
...
querySelector and querySelectorAll vs getElementsByClassName and getElementById in JavaScript
...browser to browser (and from version to version). I'd assume that selector based ones were more expensive (but not in a way that will ever likely to be significant)
– Quentin
Jan 17 '13 at 11:18
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