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How do I format a string using a dictionary in python-3.x?
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23
Since the question is specific to Python 3, here's using the new f-string syntax, available sinc...
How to return dictionary keys as a list in Python?
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answered May 29 '13 at 16:25
Chris Chris
11.8k11 gold badge1313 silver badges1616 bronze badges
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Cost of len() function
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360
It's O(1) (constant time, not depending of actual length of the element - very fast) on every ...
How to use string.replace() in python 3.x
The string.replace() is deprecated on python 3.x. What is the new way of doing this?
8 Answers
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PHP append one array to another (not array_push or +)
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436
array_merge is the elegant way:
$a = array('a', 'b');
$b = array('c', 'd');
$merge = array_mer...
How To Get IPython Notebook To Run Python 3?
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To set IPython Notebook to run Python 3 instead of 2 on my MAC 10.9, I did the following steps
$ sudo pip3 install ipython[all]
Then
$ ipython3 notebook
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在vc中使用xtremetoolkit界面库-----安装及环境配置 - C/C++ - 清泛网 - 专...
...当然是配置发开环境了：
我使用的是vc6.0+xtremetoolkitPro15.3.1
以下链接是xtremetoolkitPro15.3.1免费下载地址：（其中还包含了注册机，解压Crack文件下的Keygen.zip就可以得到），
http://pan.baidu.com/s/1pJvfy0F
我因为之前安装的是一个绿色...
How do I add PHP code/file to HTML(.html) files?
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answered Jul 3 '12 at 13:47
John CondeJohn Conde
202k8888 gold badges406406 silver badges453453 bronze badges
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[] and {} vs list() and dict(), which is better?
...gt;> from timeit import timeit
>>> timeit("[]")
0.040084982867934334
>>> timeit("list()")
0.17704233359267718
>>> timeit("{}")
0.033620194745424214
>>> timeit("dict()")
0.1821558326547077
and for non-empty:
>>> timeit("[1,2,3]")
0.24316302770330367
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How to profile a bash shell script slow startup?
My bash shell takes up to 3-4 seconds to start up, while if I start it with --norc it runs immediately.
7 Answers
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