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Why is parenthesis in print voluntary in Python 2.7?
In Python 2.7 both the following will do the same
4 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...
Python, Unicode, and the Windows console
...y characters. What's the best way around this? Is there any way I can make Python automatically print a ? instead of failing in this situation?
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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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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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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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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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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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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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Printing Python version in output
How can I print the version number of the current Python installation from my script?
5 Answers
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