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Efficient way to rotate a list in python
What is the most efficient way to rotate a list in python?
Right now I have something like this:
26 Answers
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Python logging: use milliseconds in time format
...me object instead of a struct_time, then (at least with modern versions of Python) we can call ct.strftime and then we can use %f to format microseconds:
import logging
import datetime as dt
class MyFormatter(logging.Formatter):
converter=dt.datetime.fromtimestamp
def formatTime(self, reco...
Download file from web in Python 3
...that is specified in the .jad file of the same game/application. I'm using Python 3.2.1
8 Answers
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How to empty a list?
... For a sound explanation of del, I'd refer to the docs: docs.python.org/reference/simple_stmts.html#the-del-statement
– fortran
Sep 9 '09 at 16:28
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What does the 'b' character do in front of a string literal?
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To quote the Python 2.x documentation:
A prefix of 'b' or 'B' is ignored in
Python 2; it indicates that the
literal should become a bytes literal
in Python 3 (e.g. when code is
automatically converted with 2to3). A
'u' or 'b...
Is arr.__len__() the preferred way to get the length of an array in Python?
In Python , is the following the only way to get the number of elements?
8 Answers
8
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Create a .csv file with values from a Python list
I am trying to create a .csv file with the values from a Python list. When I print the values in the list they are all unicode (?), i.e. they look something like this
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How do I check if a list is empty?
...ist is empty")
Using the implicit booleanness of the empty list is quite pythonic.
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How to add a progress bar to a shell script?
...ch as dd(1), accept a SIGINFO signal, and will report their progress. On Linux systems some commands will respond similarly to SIGUSR1. If this facility is available, you can pipe your input through dd to monitor the number of bytes processed.
Alternatively, you can use lsof to obtain the offset...
Python Progress Bar
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this does not scale for many steps... pypi.python.org/pypi/progress is much easier to use
– m13r
May 8 '15 at 21:55
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