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How do I implement __getattribute__ without an infinite recursion error?
...ase version of __getattribute__ you avoid the recursive hell you were in before.
Ipython output with code in foo.py:
In [1]: from foo import *
In [2]: d = D()
In [3]: d.test
Out[3]: 0.0
In [4]: d.test2
Out[4]: 21
Update:
There's something in the section titled More attribute access for new-s...
tinyxml XML解析库下载（tinyxml2.h 和 tinyxml2.cpp） - 源码下载 - 清泛...
... express or implied
warranty. In no event will the authors be held liable for any
damages arising from the use of this software.
Permission is granted to anyone to use this software for any
purpose, including commercial applications, and to alter it and
redistribute it freely, subject to the ...
Overloading Macro on Number of Arguments
...t on C++11, you'll get a warning: ISO C++11 requires at least one argument for the "..." in a variadic macro. To fix this, add an unused argument (or even just a comma) after the last param in the definition of FOO(...): #define FOO(...) GET_MACRO(__VA_ARGS__, FOO3, FOO2, UNUSED)(__VA_ARGS__) (See i...
Grid of responsive squares
...ncy responsive squares!
1. Making the responsive squares :
The trick for keeping elements square (or whatever other aspect ratio) is to use percent padding-bottom.
Side note: you can use top padding too or top/bottom margin but the background of the element won't display.
As top padding is ca...
Build a Basic Python Iterator
...
Iterator objects in python conform to the iterator protocol, which basically means they provide two methods: __iter__() and __next__().
The __iter__ returns the iterator object and is implicitly called
at the start of loops.
The __next__() method re...
#define macro for debug printing in C?
Trying to create a macro which can be used for print debug messages when DEBUG is defined, like the following pseudo code:
...
Redirecting to URL in Flask
....0.0', port=port)
See the documentation on flask docs. The default value for code is 302 so code=302 can be omitted or replaced by other redirect code (one in 301, 302, 303, 305, and 307).
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Byte order mark screws up file reading in Java
...m
Here is a class I coded a while ago, I just edited the package name before pasting. Nothing special, it is quite similar to solutions posted in SUN's bug database. Incorporate it in your code and you're fine.
/* ____________________________________________________________________________
*
...
How do I plot in real-time in a while loop using matplotlib?
...port numpy as np
import matplotlib.pyplot as plt
plt.axis([0, 10, 0, 1])
for i in range(10):
y = np.random.random()
plt.scatter(i, y)
plt.pause(0.05)
plt.show()
Note some of the changes:
Call plt.pause(0.05) to both draw the new data and it runs the GUI's event loop (allowing for...
Why does the expression 0 < 0 == 0 return False in Python?
...
I believe Python has special case handling for sequences of relational operators to make range comparisons easy to express. It's much nicer to be able to say 0 < x <= 5 than to say (0 < x) and (x <= 5).
These are called chained comparisons. And that's a l...