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Accessing class variables from a list comprehension in the class definition
... a list comprehension within the class definition? The following works in Python 2 but fails in Python 3:
5 Answers
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Python: List vs Dict for look up table
... true for very large sets/dicts. The worst case scenario according to wiki.python.org/moin/TimeComplexity is O(n). I guess it depends on the internal hashing implementation at what point the average time diverges from O(1) and starts converging on O(n). You can help the lookup performance by compart...
Accessing the index in 'for' loops?
...h you would normally use in languages such as C or PHP), is considered non-pythonic.
The better option is to use the built-in function enumerate(), available in both Python 2 and 3:
for idx, val in enumerate(ints):
print(idx, val)
Check out PEP 279 for more.
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Python Graph Library [closed]
I'm writing a python application that will make heavy use of a graph data structure. Nothing horribly complex, but I'm thinking some sort of graph/graph-algorithms library would help me out. I've googled around, but I don't find anything that particularly leaps out at me.
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What does the “at” (@) symbol do in Python?
I'm looking at some Python code which used the @ symbol, but I have no idea what it does. I also do not know what to search for as searching Python docs or Google does not return relevant results when the @ symbol is included.
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Does Python support multithreading? Can it speed up execution time?
I'm slightly confused about whether multithreading works in Python or not.
3 Answers
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Purpose of Python's __repr__
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Omitted the reference: docs.python.org/reference/datamodel.html#object.__repr__
– S.Lott
Dec 31 '09 at 11:19
1
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How to know if an object has an attribute in Python
Is there a way in Python to determine if an object has some attribute? For example:
14 Answers
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Get fully qualified class name of an object in Python
...or logging purposes I want to retrieve the fully qualified class name of a Python object. (With fully qualified I mean the class name including the package and module name.)
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Python's most efficient way to choose longest string in list?
...eing evaluated is the longest string contained in the list. And I am using Python 2.6.1
6 Answers
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