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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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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'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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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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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
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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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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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UnicodeDecodeError when reading CSV file in Pandas with Python
...use one of several alias options like 'latin' instead of 'ISO-8859-1' (see python docs, also for numerous other encodings you may encounter).
See relevant Pandas documentation,
python docs examples on csv files, and plenty of related questions here on SO. A good background resource is What every de...
Manually raising (throwing) an exception in Python
How can I raise an exception in Python so that it can later be caught via an except block?
8 Answers
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