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Python __str__ versus __unicode__
... them for compatibility reasons. Generally, you should put all your string formatting in __unicode__(), and create a stub __str__() method:
def __str__(self):
return unicode(self).encode('utf-8')
In 3.0, str contains characters, so the same methods are named __bytes__() and __str__(). These b...
Why is it bad style to `rescue Exception => e` in Ruby?
...StandardError and you need a variable with the exception, you can use this form:
begin
# iceberg!
rescue => e
# lifeboats
end
which is equivalent to:
begin
# iceberg!
rescue StandardError => e
# lifeboats
end
One of the few common cases where it’s sane to rescue from Exceptio...
How to get string objects instead of Unicode from JSON?
...eritems()
}
# if it's anything else, return it in its original form
return data
Example usage:
>>> json_loads_byteified('{"Hello": "World"}')
{'Hello': 'World'}
>>> json_loads_byteified('"I am a top-level string"')
'I am a top-level string'
>>> json_load...
Instance variables vs. class variables in Python
...
Same question at Performance of accessing class variables in Python - the code here adapted from @Edward Loper
Local Variables are the fastest to access, pretty much tied with Module Variables, followed by Class Variables, followed by Instance ...
How should I unit test threaded code?
...seems to be great for single thread programs and algorithms that have some form of concurrency but don't really interract with each other. I don't think it will work well testing a truely parrallel algoritm.
– Nicolas Bousquet
Jul 25 at 18:24
...
Permutations in JavaScript?
...
Accessing globals in your function, bad form!
– Shmiddty
Oct 15 '16 at 14:54
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Pros and cons of AppSettings vs applicationSettings (.NET app.config / Web.config)
When developing a .NET Windows Forms Application we have the choice between those App.config tags to store our configuration values. Which one is better?
...
#pragma once vs include guards? [duplicate]
... I have now switched to #pragma once, and the only reason for me is not performance or portability or standard as I don't really care what is standard as long as VS and GCC support it, and that is that:
#pragma once reduces possibilities for bugs.
It is all too easy to copy and paste a header file...
Which characters need to be escaped in HTML?
...onal text
(eg. when using the Arabic or Hebrew scripts). It has no graphic form,
however, so it is difficult to see where these characters are in the
text, and if they are lost or forgotten they could create unexpected
results during later editing. Using (or its numeric character
reference equiv...
E731 do not assign a lambda expression, use a def
... Yes:
def f(x): return 2*x
No:
f = lambda x: 2*x
The first form means that the name of the resulting
function object is specifically 'f' instead of the generic '<lambda>'.
This is more useful for tracebacks and string representations in
general. The use of the assignment ...