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List all base classes in a hierarchy of given class?
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you can use the __bases__ tuple of the class object:
class A(object, B, C):
def __init__(self):
pass
print A.__bases__
The tuple returned by __bases__ has all its base classes.
Hope it helps!
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Checking out Git tag leads to “detached HEAD state”
... a way of referring to a point in in the history of the project. Treeishes can be a tag, a commit, a date specifier, an ordinal specifier or many other things.
Now a branch is just like a tag but is movable. When you are "on" a branch and make a commit, the branch is moved to the new commit you ma...
__FILE__, __LINE__, and __FUNCTION__ usage in C++
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In rare cases, it can be useful to change the line that is given by __LINE__ to something else. I've seen GNU configure does that for some tests to report appropriate line numbers after it inserted some voodoo between lines that do not appear ...
What does “hashable” mean in Python?
...hich never changes during its lifetime (it needs a __hash__() method), and can be compared to other objects (it needs an __eq__() or __cmp__() method). Hashable objects which compare equal must have the same hash value.
Hashability makes an object usable as a dictionary key and a set member, be...
Tuples( or arrays ) as Dictionary keys in C#
... Dictionary<Tuple<TypeA, TypeB, TypeC>, string>();
If not you can define a Tuple and use that as the key. The Tuple needs to override GetHashCode, Equals and IEquatable:
struct Tuple<T, U, W> : IEquatable<Tuple<T,U,W>>
{
readonly T first;
readonly U second;
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How to overload __init__ method based on argument type?
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Cool! Where can I read about what exactly @classmethod does under the hood?
– Hamish Grubijan
Jun 27 '10 at 16:55
3
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What is a None value?
...ers put on objects. Every sticker has a unique name written on it, and it can only be on one object at a time, but you could put more than one sticker on the same object, if you wanted to. When you write
F = "fork"
you put the sticker "F" on a string object "fork". If you then write
F = None
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Redirecting to URL in Flask
...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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Scaling Node.js
...nt your own authentication-system. It is probably going to be unsafe(a lot can go wrong), a lot of work. For authentication you should use facebook-connect, twitter single sign-in, etc using the excellent connect-auth library. Then you are covered safe because they have experts testing there login-s...
How do I create a namespace package in Python?
...ackages, see PEP 420.
This means there are now three types of object that can be created by an import foo:
A module represented by a foo.py file
A regular package, represented by a directory foo containing an __init__.py file
A namespace package, represented by one or more directories foo without...