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How to find out the number of CPUs using python
...is not in use), multiprocessing.cpu_count() is the way to go in Python 2.6 and newer. The following method falls back to a couple of alternative methods in older versions of Python:
import os
import re
import subprocess
def available_cpu_count():
""" Number of available virtual or physical CP...
The easiest way to transform collection to array?
...t a size 0 array, it will make a new array, meaning you have a small array and a large array being made when such is unnecessary.
– corsiKa
Jul 20 '10 at 21:42
4
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Xcode 4 says “finished running ” on the targeted device — Nothing happens
...ice. All provisioning profiles are up to date. I've already tried deleting and re-installing them.
25 Answers
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Is object empty? [duplicate]
...y = Object.prototype.hasOwnProperty;
function isEmpty(obj) {
// null and undefined are "empty"
if (obj == null) return true;
// Assume if it has a length property with a non-zero value
// that that property is correct.
if (obj.length > 0) return false;
if (obj.length...
How to get distinct values for non-key column fields in Laravel?
...
I have a table "messages" (used for a chat), and I want to get the latest message that the authenticated user has received from each conversation. Using groupBy I can get just one message, but I get the first, and I need the last message. Seems that orderBy doesn't work...
How can I find the length of a number?
...34567;
x.toString().length;
This process will also work forFloat Number and for Exponential number also.
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How to get the current time in Python
...
>>> print(datetime.datetime.now())
2009-01-06 15:08:24.789150
And just the time:
>>> datetime.datetime.now().time()
datetime.time(15, 8, 24, 78915)
>>> print(datetime.datetime.now().time())
15:08:24.789150
See the documentation for more information.
To save typing...
docker mounting volumes on host
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The VOLUME command will mount a directory inside your container and store any files created or edited inside that directory on your hosts disk outside the container file structure, bypassing the union file system.
The idea is that your vol...
SQL Call Stored Procedure for each Row without using a cursor
... as with the accepted answer USE WITH CATION: Depending on your table and index structure it can be very poorly performing ( O(n^2) ) since you have to order and search your table every time you enumerate.
– csauve
May 30 '12 at 1:00
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How do I find a default constraint using INFORMATION_SCHEMA?
...onstraint exists. I don't want to use the sysobjects table, but the more standard INFORMATION_SCHEMA.
14 Answers
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