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What is the advantage of GCC's __builtin_expect in if else statements?
...
Ohh i understand. So you mean since there is a high probability for x = 0 so the bar is given first. And foo, is defined later since it's chances (rather use probability) is less, right?
– kingsmasher1
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How to import the class within the same directory or sub directory?
...es are in a subdirectory - put an __init__.py in the subdirectory as well, and then use regular import statements, with dot notation. For each level of directory, you need to add to the import path.
bin/
main.py
classes/
user.py
dir.py
So if the directory was named "class...
Define a lambda expression that raises an Exception
...ption without defining a named function. All you need is a strong stomach (and 2.x for the given code):
type(lambda:0)(type((lambda:0).func_code)(
1,1,1,67,'|\0\0\202\1\0',(),(),('x',),'','',1,''),{}
)(Exception())
And a python3 strong stomach solution:
type(lambda: 0)(type((lambda: 0).__code_...
How to get the caller's method name in the called method?
...
inspect.getframeinfo and other related functions in inspect can help:
>>> import inspect
>>> def f1(): f2()
...
>>> def f2():
... curframe = inspect.currentframe()
... calframe = inspect.getouterframes(curframe, 2...
Accessing Object Memory Address
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This is an integer (or long integer)
which is guaranteed to be unique and
constant for this object during its
lifetime. Two objects with
non-overlapping lifetimes may have the
same id() value. (Implementation note:
this is the address of the object.)
So in CPython, this will be the ...
How to refer to relative paths of resources when working with a code repository
We are working with a code repository which is deployed to both Windows and Linux - sometimes in different directories. How should one of the modules inside the project refer to one of the non-Python resources in the project (CSV files, etc.)?
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Dynamically set local variable [duplicate]
...ntrary to other answers already posted you cannot modify locals() directly and expect it to work.
>>> def foo():
lcl = locals()
lcl['xyz'] = 42
print(xyz)
>>> foo()
Traceback (most recent call last):
File "<pyshell#6>", line 1, in <module>
foo()
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How to mock an import
.... However under test conditions I'd like to mock B in A (mock A.B ) and completely refrain from importing B .
8 An...
Why is __dirname not defined in node REPL?
...irname , but from the REPL this seems to be undefined. Is this a misunderstanding on my side or where is the error?
11 Answ...
Creating a dynamic choice field
I'm having some trouble trying to understand how to create a dynamic choice field in django. I have a model set up something like:
...