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What is :: (double colon) in Python when subscripting sequences?
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– Ricky Robinson
Sep 19 '14 at 8:56
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what does it mean who comes before :: like [n::]. So w...
Most popular screen sizes/resolutions on Android phones [closed]
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8 Answers
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WinDBG用法详解 PDF - 文档下载 - 清泛网 - 专注C/C++及内核技术
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30.4输入和执行命令.......................................................................................................10
30.4.1基本要点.........................................................................
efficient circular buffer?
... d.append(i)
...
>>> d
deque([10, 11, 12, 13, 14, 15, 16, 17, 18, 19], maxlen=10)
There is a recipe in the docs for deque that is similar to what you want. My assertion that it's the most efficient rests entirely on the fact that it's implemented in C by an incredibly skilled crew that...
Pandas index column title or name
...ex via its name property
In [7]: df.index.name
Out[7]: 'Index Title'
In [8]: df.index.name = 'foo'
In [9]: df.index.name
Out[9]: 'foo'
In [10]: df
Out[10]:
Column 1
foo
Apples 1
Oranges 2
Puppies 3
Ducks 4
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Installing libv8 gem on OS X 10.9+
I'm trying to install libv8 3.16.14.3 but getting an error on OSX Mavericks using latest stable rvm and ruby-1.9.3-p125.
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How to thoroughly purge and reinstall postgresql on ubuntu? [closed]
...nstall postgresql
or for a complete install:
apt-get install postgresql-8.4 postgresql-contrib-8.4 postgresql-doc-8.4
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Searching for UUIDs in text with regex
...tly I'm relying on the assumption that all UUIDs will follow a patttern of 8-4-4-4-12 hexadecimal digits.
16 Answers
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What is the difference between Ruby 1.8 and Ruby 1.9
I'm not clear on the differences between the "current" version of Ruby (1.8) and the "new" version (1.9). Is there an "easy" or a "simple" explanation of the differences and why it is so different?
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Find the max of two or more columns with pandas
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185
You can get the maximum like this:
>>> import pandas as pd
>>> df = pd.DataF...
