大约有 47,000 项符合查询结果（耗时：0.0564秒） [XML]
Get last result in interactive Python shell
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243
Underscore.
>>> 5+5
10
>>> _
10
>>> _ + 5
15
>>> _
15
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Group by with multiple columns using lambda
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edited Nov 25 '14 at 14:41
answered Aug 4 '11 at 2:11
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Transpose list of lists
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How 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 ...
Adding a new array element to a JSON object
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242
JSON is just a notation; to make the change you want parse it so you can apply the changes to a...
Is it possible to install another version of Python to Virtualenv?
I have a shared account in a web-hosting that has Python 2.4 installed, but my code is not compatible with 2.4. Is it possible to install Python 2.6 directly to Virtualenv?
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What are Bearer Tokens and token_type in OAuth 2?
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edited Sep 2 at 4:59
Pang
8,2181717 gold badges7373 silver badges111111 bronze badges
answered...
Sublime text 2 - find and replace globally ( all files and in all directories )
..._All.
– George Shaw
Jan 7 '13 at 22:40
I think that the only way is to use multiple files search to get the files you ...
How to trace the path in a Breadth-First Search?
...raph is in adjacent list representation
graph = {
'1': ['2', '3', '4'],
'2': ['5', '6'],
'5': ['9', '10'],
'4': ['7', '8'],
'7': ['11', '12']
}
def bfs(graph, start, end):
# maintain a queue of paths
queue = []
# push the first path into t...
How to redirect stderr and stdout to different files in the same line in script?
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294
Just add them in one line command 2>> error 1>> output
However, note that >> ...
Converting NumPy array into Python List structure?
How do I convert a NumPy array to a Python List (for example [[1,2,3],[4,5,6]] ), and do it reasonably fast?
5 Answers
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