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How to make an unaware datetime timezone aware in python
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In general, to make a naive datetime timezone-aware, use the localize method:
import datetime
import pytz
unaware = datetime.datetime(2011, 8, 15, 8, 15, 12, 0)
aware = datetime.datetime(2011, 8, 15, 8, 15, 12, 0, pytz.UTC)
now_aware = pytz.utc.localize(un...
How to check programmatically if an application is installed or not in Android?
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setContentView(R.layout.main_activity);
// Use package name which we want to check
boolean isAppInstalled = appInstalledOrNot("com.check.application");
if(isAppInstalled) {
//This intent will help you to launch if the package is already installed
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Drop data frame columns by name
I have a number of columns that I would like to remove from a data frame. I know that we can delete them individually using something like:
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One line ftp server in python
...-site. [default:
/usr/local/ftp]
--userAnonymous= Name of the anonymous user. [default: anonymous]
--password-file= username:password-style credentials database
--version
--help Display this help and exit.
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How can I suppress all output from a command using Bash?
I have a Bash script that runs a program with parameters. That program outputs some status (doing this, doing that...). There isn't any option for this program to be quiet. How can I prevent the script from displaying anything?
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How to compute the sum and average of elements in an array?
I am having problems adding all the elements of an array as well as averaging them out. How would I do this and implement it with the code I currently have? The elements are supposed to be defined as I have it below.
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Secure random token in Node.js
...tion Erik needs to generate a secure random token in Node.js. There's the method crypto.randomBytes that generates a random Buffer. However, the base64 encoding in node is not url-safe, it includes / and + instead of - and _ . Therefore, the easiest way to generate such token I've found is...
How can I multiply all items in a list together with Python?
...numbers and multiplies them together. Example:
[1,2,3,4,5,6] will give me 1*2*3*4*5*6 . I could really use your help.
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Splitting a list into N parts of approximately equal length
...ivide a list into roughly equal parts? For example, if the list has 7 elements and is split it into 2 parts, we want to get 3 elements in one part, and the other should have 4 elements.
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