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Get difference between 2 dates in JavaScript? [duplicate]
...ur 25 hour day in the calculated span. It would be helpful to consult a detailed treatment of UTC (Universal Coordinated Time) and "civil" time standards before devising a calculation such as this. A day is not a always 86,400 seconds, not even in UTC. However, ECMA standards state that it will not ...
Rolling median algorithm in C
...e internally entirely different:
\describe{
\item{"Turlach"}{is the Härdle-Steiger
algorithm (see Ref.) as implemented by Berwin Turlach.
A tree algorithm is used, ensuring performance \eqn{O(n \log
k)}{O(n * log(k))} where \code{n <- length(x)} which is
asymptoti...
How do I parallelize a simple Python loop?
...this, available in Python3 since version 3.2 - and via backport to 2.6 and 2.7 on PyPi.
You can use threads or processes and use the exact same interface.
Multiprocessing
Put this in a file - futuretest.py:
import concurrent.futures
import time, random # add some random sleep time
...
In Python, when to use a Dictionary, List or Set?
...dict, if for some weird reason you couldn't import collections, or, in pre-2.7 Python as a collections.defaultdict(int), using the items as keys and the associated value as the count).
Checking for membership of a value in a set (or dict, for keys) is blazingly fast (taking about a constant, short ...
Python argparse ignore unrecognised arguments
... works with parse_args() and doesn't require parse_known_args() (on Python 2.7).
– OozeMeister
May 3 '17 at 18:04
4
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Get the subdomain from a URL
Getting the subdomain from a URL sounds easy at first.
16 Answers
16
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Reloading module giving NameError: name 'reload' is not defined
...on versions 2 and 3, you can use the following:
try:
reload # Python 2.7
except NameError:
try:
from importlib import reload # Python 3.4+
except ImportError:
from imp import reload # Python 3.0 - 3.3
...
How do I find the time difference between two datetime objects in python?
...
New at Python 2.7 is the timedelta instance method .total_seconds(). From the Python docs, this is equivalent to (td.microseconds + (td.seconds + td.days * 24 * 3600) * 10**6) / 10**6.
Reference: http://docs.python.org/2/library/datetime....
What is Python buffer type for?
...e better named memoryview in Python 3, though you can use either in Python 2.7.
Note also that you can't implement a buffer interface for your own objects without delving into the C API, i.e. you can't do it in pure Python.
...
How to run multiple Python versions on Windows
... This is the answer I'm looking for. I run Windows 10 with Python 2.7 and Python 3.4.3. In command prompt type in "py [python_version_number]" ex: py -3 or py will invoke the python version you have. I think environment variables must be set before you use this. this is convenient for me.
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