大约有 5,685 项符合查询结果（耗时：0.0228秒） [XML]
python re.sub group: number after \number
....new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f5984633%2fpython-re-sub-group-number-after-number%23new-answer', 'question_page');
}
);
Post as a guest
...
How do I merge a list of dicts into a single dict?
.....
>>> result
{'a':1,'c':1,'b':2,'d':2}
As a comprehension:
# Python >= 2.7
{k: v for d in L for k, v in d.items()}
# Python < 2.7
dict(pair for d in L for pair in d.items())
share
|
...
Replace all elements of Python NumPy Array that are greater than some value
...
NOTE: this doesn't work if the data is in a python list, it HAS to be in a numpy array (np.array([1,2,3])
– mjp
May 8 '17 at 14:28
...
Python - write() versus writelines() and concatenated strings
So I'm learning Python. I am going through the lessons and ran into a problem where I had to condense a great many target.write() into a single write() , while having a "\n" between each user input variable(the object of write() ).
...
How can I recover the return value of a function passed to multiprocessing.Process?
...: should use args=(my_function_argument, ). Note the , comma here! Or else Python will complain "missing positional arguments". Took me 10 minutes to figure out. Also check the manual usage (under the "process class" section).
– yuqli
Apr 29 '19 at 15:17
...
How to get indices of a sorted array in Python
I have a numerical list:
11 Answers
11
...
Why would anybody use C over C++? [closed]
...gies, poor programmers will fall foul and blame the language.
Interpreted Python is in many ways considered to be a "slow" language, but for non-trivial tasks a skilled Python programmer can easily produce code that executes faster than that of an inexperienced C developer.
In my industry, video g...
How to assign a Git SHA1's to a file without Git?
... hash-object foo.txt
323fae03f4606ea9991df8befbb2fca795e648fa
Here is a Python implementation:
from hashlib import sha1
def githash(data):
s = sha1()
s.update("blob %u\0" % len(data))
s.update(data)
return s.hexdigest()
...
How can I increment a char?
I'm new to Python, coming from Java and C. How can I increment a char? In Java or C, chars and ints are practically interchangeable, and in certain loops, it's very useful to me to be able to do increment chars, and index arrays by chars.
...
URL encoding the space character: + or %20?
...though.
If I'm not mistaken, in PHP urlencode() treats spaces as + whereas Python's urlencode() treats them as %20.
EDIT:
It seems I'm mistaken. Python's urlencode() (at least in 2.7.2) uses quote_plus() instead of quote() and thus encodes spaces as "+".
It seems also that the W3C recommendation i...