大约有 47,000 项符合查询结果（耗时：0.0414秒） [XML]
Set Django IntegerField by choices=… name
... FWIW, if you need set it from a literal string (perhaps from a form, user input, or similar) you can then just do: thing.priority = getattr(thing, strvalue.upper()).
– mrooney
Feb 24 '13 at 23:22
...
How do I base64 encode (decode) in C?
... = malloc(*output_length);
if (encoded_data == NULL) return NULL;
for (int i = 0, j = 0; i < input_length;) {
uint32_t octet_a = i < input_length ? (unsigned char)data[i++] : 0;
uint32_t octet_b = i < input_length ? (unsigned char)data[i++] : 0;
uint32_t oc...
What is the difference between .*? and .* regular expressions?
I'm trying to split up a string into two parts using regex. The string is formatted as follows:
3 Answers
...
Python constructors and __init__
...r general question about constructors, Wikipedia is a good starting point. For Python-specific stuff, I highly recommend the Python docs.
share
|
improve this answer
|
follow...
How do you validate a URL with a regular expression in Python?
... new to Python and have been beating my head against the following problem for the past 3 days.
12 Answers
...
Object of custom type as dictionary key
...
@Rosh Oxymoron: thank you for the comment. When writing I was using explicit and for __eq__ but then I thought "why not using tuples?" because I often do that anyway (I think it's more readable). For some strange reason my eyes didn't go back to quest...
How can I dynamically create derived classes from a base class
For example I have a base class as follows:
3 Answers
3
...
Is module __file__ attribute absolute or relative?
...oaded, if it was loaded from a file. The __file__ attribute is not present for C modules that are statically linked into the interpreter; for extension modules loaded dynamically from a shared library, it is the pathname of the shared library file.
From the mailing list thread linked by @kindall i...
RuntimeError on windows trying python multiprocessing
I am trying my very first formal python program using Threading and Multiprocessing on a windows machine. I am unable to launch the processes though, with python giving the following message. The thing is, I am not launching my threads in the main module. The threads are handled in a separate modu...
Does C have a “foreach” loop construct?
Almost all languages have a foreach loop or something similar. Does C have one? Can you post some example code?
12 Answer...