大约有 11,000 项符合查询结果（耗时：0.0279秒） [XML]
How to find if directory exists in Python
In the os module in Python, is there a way to find if a directory exists, something like:
13 Answers
...
List Git aliases
...r by johnny. It applies if you're not using git-alias from git-extras.
On Linux, run once:
git config --global alias.alias "! git config --get-regexp ^alias\. | sed -e s/^alias\.// -e s/\ /\ =\ /"
This will create a permanent git alias named alias which gets stored in your ~/.gitconfig file. Usi...
Python argparse: Make at least one argument required
I've been using argparse for a Python program that can -process , -upload or both:
11 Answers
...
Daemon Threads Explanation
In the Python documentation
it says:
7 Answers
7
...
How to enumerate a range of numbers starting at 1
I am using Python 2.5, I want an enumeration like so (starting at 1 instead of 0):
12 Answers
...
How do I remove the “extended attributes” on a file in Mac OS X?
....
Because the errors drove me nuts too...
On a mac if you install xattr in python, then your environment may have an issue.
There are two different paths on my mac for xattr
type -a xattr
# xattr is /usr/local/bin/xattr # PYTHON Installed Version
# xattr is /usr/bin/xattr ...
Add string in a certain position in Python
Is there any function in Python that I can use to insert a value in a certain position of a string?
8 Answers
...
How do you get the logical xor of two variables in Python?
How do you get the logical xor of two variables in Python?
24 Answers
24
...
Transpose list of lists
...w about
map(list, zip(*l))
--> [[1, 4, 7], [2, 5, 8], [3, 6, 9]]
For python 3.x users can use
list(map(list, zip(*l)))
Explanation:
There are two things we need to know to understand what's going on:
The signature of zip: zip(*iterables) This means zip expects an arbitrary number of argu...
How to deal with a slow SecureRandom generator?
...nfortunately, SecureRandom can be very slow. If it uses /dev/random on Linux, it can block waiting for sufficient entropy to build up. How do you avoid the performance penalty?
...