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StringIO in Python3
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io.StringIO and it works, but I can't use it with numpy 's genfromtxt like this:
8 Answers
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Convert string to a variable name
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assign is what you are looking for.
assign("x", 5)
x
[1] 5
but buyer beware.
See R FAQ 7.21
http://cran.r-project.org/doc/FAQ/R-FAQ.html#How-can-I-turn-a-string-into-a-variable_003f
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Pythonic way to combine FOR loop and IF statement
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You can use generator expressions like this:
gen = (x for x in xyz if x not in a)
for x in gen:
print x
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6个变态的C语言Hello World程序 - 创意 - 清泛网 - 专注C/C++及内核技术
...#define _(a) ________(a);
#define ______ _______(){
#define __ ______ _(0x48)_(0x65)_(0x6C)_(0x6C)
#define ___ _(0x6F)_(0x2C)_(0x20)_(0x77)_(0x6F)
#define ____ _(0x72)_(0x6C)_(0x64)_(0x21)
#define _____ __ ___ ____ _________
#include<stdio.h>
_____
hello2.c
#include<stdio.h>
main(){...
Sort points in clockwise order?
Given an array of x,y points, how do I sort the points of this array in clockwise order (around their overall average center point)? My goal is to pass the points to a line-creation function to end up with something looking rather "solid", as convex as possible with no lines intersecting.
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How to manually create icns files using iconutil?
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Since the path contains spaces, you need to use double quotes, for example:
iconutil -c icns "/Users/myname/SDK Mac Apps/MyApp/grafica/icon.iconset"
This command should work properly.
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How to detect if a function is called as constructor?
...nce.
Looking at the ECMAScript 3rd edition spec, the steps taken when new x() is called are essentially:
Create a new object
Assign its internal [[Prototype]] property to the prototype property of x
Call x as normal, passing it the new object as this
If the call to x returned an object, return it...
data.frame rows to a list
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Like this:
xy.list <- split(xy.df, seq(nrow(xy.df)))
And if you want the rownames of xy.df to be the names of the output list, you can do:
xy.list <- setNames(split(xy.df, seq(nrow(xy.df))), rownames(xy.df))
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Python matplotlib multiple bars
...e red can be seen only.
How can I plot the multiple bars with dates on the x-axes?
5 Answers
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Converting int to bytes in Python 3
...es on an iterable instead of a single integer:
>>> bytes([3])
b'\x03'
The docs state this, as well as the docstring for bytes:
>>> help(bytes)
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bytes(int) -> bytes object of size given by the parameter initialized with null bytes
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