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Adding information to an exception?
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raise IOError('Stuff')
IOError: Stuff happens at arg1
Update 2
For Python 3.x, the code in my first update is syntactically incorrect plus the idea of having a message attribute on BaseException was retracted in a change to PEP 352 on 2012-05-16 (my first update was posted on 2012-03-12). So...
Counting array elements in Python [duplicate]
...e usually "special methods" implementing one of the standard interfaces in Python (container, number, etc). Special methods are used via syntactic sugar (object creation, container indexing and slicing, attribute access, built-in functions, etc.).
Using obj.__len__() wouldn't be the correct way of...
Effective way to find any file's Encoding
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Thanks @Simon Mourier. I dint expect my pdf / any file would not have bom. This link stackoverflow.com/questions/4520184/… might be helpful for someone who try to detect without bom.
– Ram
Mar 16 '16 at 9:42
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Python (and Python C API): __new__ versus __init__
The question I'm about to ask seems to be a duplicate of Python's use of __new__ and __init__? , but regardless, it's still unclear to me exactly what the practical difference between __new__ and __init__ is.
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In Python, how to display current time in readable format
...-0400. %Z gives you current timezone name (or abbreviation) automatically. Python doesn't support %l, you could use %I instead.
– jfs
Dec 14 '13 at 19:30
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.NET - Dictionary locking vs. ConcurrentDictionary
...Edit: .NET 4 ConcurrentDictionary and patterns.
Microsoft have released a pdf called Patterns of Paralell Programming. Its reallly worth downloading as it described in really nice details the right patterns to use for .Net 4 Concurrent extensions and the anti patterns to avoid. Here it is.
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Python Dictionary to URL Parameters
I am trying to convert a Python dictionary to a string for use as URL parameters. I am sure that there is a better, more Pythonic way of doing this. What is it?
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How to convert integer timestamp to Python datetime
...for the format, so I'm not sure how the timestamp is formatted. I've tried Python's standard datetime.fromordinal() and datetime.fromtimestamp() and a few others, but nothing matches. I'm pretty sure that particular number corresponds to the current date (e.g. 2012-3-16), but not much more.
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How can I shuffle the lines of a text file on the Unix command line or in a shell script?
...huf() { perl -MList::Util=shuffle -e 'print shuffle(<>);' "$@"; }
Python-based function, adapted from scai's answer:
shuf() { python -c '
import sys, random, fileinput; from signal import signal, SIGPIPE, SIG_DFL;
signal(SIGPIPE, SIG_DFL); lines=[line for line in fileinput.input()]; ...
how to change any data type into a string in python
How can I change any data type into a string in Python?
10 Answers
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