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Elegant ways to support equivalence (“equality”) in Python classes
...ult uses the object identifiers for comparison operations:
id(n1) # 140400634555856
id(n2) # 140400634555920
Overriding the __eq__ function seems to solve the problem:
def __eq__(self, other):
"""Overrides the default implementation"""
if isinstance(other, Number):
return self.nu...
TypeError: method() takes 1 positional argument but 2 were given
...y type of person
– Carlos
May 15 at 6:18
1
or just adding @staticmethod before defining it. Cool
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How to retrieve a module's path?
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Roman Orac
8761010 silver badges1616 bronze badges
answered Oct 29 '08 at 23:57
orestisorestis
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Dynamically set local variable [duplicate]
...>>> foo()
Traceback (most recent call last):
File "<pyshell#6>", line 1, in <module>
foo()
File "<pyshell#5>", line 4, in foo
print(xyz)
NameError: global name 'xyz' is not defined
Modifying locals() is undefined. Outside a function when locals() and globals...
How do I concatenate or merge arrays in Swift?
...building a new array
let c = a + b
print(c) // [1.0, 2.0, 3.0, 4.0, 5.0, 6.0]
or append one array to the other with += (or append):
a += b
// Or:
a.append(contentsOf: b) // Swift 3
a.appendContentsOf(b) // Swift 2
a.extend(b) // Swift 1.2
print(a) // [1.0, 2.0, 3.0, 4.0, 5.0,...
Accessing class variables from a list comprehension in the class definition
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246
Class scope and list, set or dictionary comprehensions, as well as generator expressions do not ...
How to initialize all members of an array to the same value?
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1276
Unless that value is 0 (in which case you can omit some part of the initializer
and the correspo...
Define a lambda expression that raises an Exception
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6 Answers
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`staticmethod` and `abc.abstractmethod`: Will it blend?
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answered Dec 17 '10 at 20:26
Rosh OxymoronRosh Oxymoron
16.7k55 gold badges3535 silver badges4242 bronze badges
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Stop pip from failing on single package when installing with requirements.txt
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6 Answers
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