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Get class that defined method
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import inspect
def get_class_that_defined_method(meth):
for cls in inspect.getmro(meth.im_class):
if meth.__name__ in cls.__dict__:
return cls
return None
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How does __proto__ differ from constructor.prototype?
...bject layout
The most surprising thing for me was discovering that Object.__proto__ points to Function.prototype, instead of Object.prototype, but I'm sure there's a good reason for that :-)
I paste the code mentioned in the image here as well for if anyone wants to test it. Note that some propert...
How can you set class attributes from variable arguments (kwargs) in python
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You could update the __dict__ attribute (which represents the class attributes in the form of a dictionary) with the keyword arguments:
class Bar(object):
def __init__(self, **kwargs):
self.__dict__.update(kwargs)
then you can:
&g...
Set attributes from dictionary in python
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Sure, something like this:
class Employee(object):
def __init__(self, initial_data):
for key in initial_data:
setattr(self, key, initial_data[key])
Update
As Brent Nash suggests, you can make this more flexible by allowing keyword arguments as well:
class ...
python NameError: global name '__file__' is not defined
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This error comes when you append this line os.path.join(os.path.dirname(__file__)) in python interactive shell.
Python Shell doesn't detect current file path in __file__ and it's related to your filepath in which you added this line
So you should write this line os.path.join(os.path.dirname(__...
Node.js - getting current filename
... is then easy:
var path = require('path');
var scriptName = path.basename(__filename);
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Python unit test with base and sub class
...g SubTest2:testSub2'
sub = 4
self.assertEquals(sub, 4)
if __name__ == '__main__':
unittest.main()
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What is a Python equivalent of PHP's var_dump()? [duplicate]
When debugging in PHP, I frequently find it useful to simply stick a var_dump() in my code to show me what a variable is, what its value is, and the same for anything that it contains.
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error C2780: \'void __cdecl std::sort(_RI,_RI,_Pr)\' : expects 3 argum...
error C2780: 'void __cdecl std::sort(_RI,_RI,_Pr)' : expects 3 arguments - 2 providedprog7.cpp(8) :error C2780:'void __cdecl std::sort(_RI,_RI,_Pr)' : expects 3 arguments - 2 provided C: Pr...prog7.cpp(8) : error C2780: 'void __cdecl std::sort(_RI,_RI,_Pr)' : expects 3 arguments - 2 provided
C:...
Python hashable dicts
...another dictionary for obvious reasons.
class hashabledict(dict):
def __hash__(self):
return hash(tuple(sorted(self.items())))
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