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How to write PNG image to string with the PIL?
...inal file format, so in this case you can use format=image.format.
In old Python 2 versions before introduction of the io module you would have used the StringIO module instead.
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The smallest difference between 2 Angles
...ept angles outside the range [0, 2π) you can generalize the above. Here's Python code for the generalized version:
PI = math.pi
TAU = 2*PI
def smallestSignedAngleBetween(x, y):
a = (x - y) % TAU
b = (y - x) % TAU
return -a if a < b else b
Note that the % operator does not behave t...
How do I run a Node.js application as its own process?
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2016 answer: nearly every Linux distribution comes with systemd, which means forever, monit, PM2, etc. are no longer necessary - your OS already handles these tasks.
Make a myapp.service file (replacing 'myapp' with your app's name, obviously):
[Uni...
Check if item is in an array / list
... @jdi, and that loop will run much faster than the one coded explicitly in Python, not to mention being easier to read.
– Mark Ransom
Jun 28 '12 at 19:44
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How to host a Node.Js application in shared hosting [closed]
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You can run node.js server on a typical shared hosting with Linux, Apache and PHP (LAMP). I have successfully installed it, even with NPM, Express and Grunt working fine. Follow the steps:
1) Create a new PHP file on the server with the following code and run it:
<?php
//Download...
Split string every nth character?
...you tell it. The above answer is really only just a for loop but expressed pythonically. Also, if you need to remember a "simplistic" answer, there are at least hundreds of thousands of ways to remember them: starring the page on stackoverflow; copying and then pasting into an email; keeping a "help...
How to run JUnit test cases from the command line
... the classpath and separate that with semicolons (Windows) or colons (UNIX/Linux). It depends on your environment.
Edit: I've added current directory as an example. Depends on your environment and how you build your application (can be bin/ or build/ or even my_application.jar etc). Note Java 6+ do...
How to save traceback / sys.exc_info() values in a variable?
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For Python3, exc_tuple[1] (aka value) is the instance of the exception, not the "String passed as parameter". See: docs.python.org/3/library/sys.html#sys.exc_info
– Jinghao Shi
Oct 6 '18 at ...
Getting only 1 decimal place [duplicate]
...ing to represent it with only one digit:
print("{:.1f}".format(number)) # Python3
print "%.1f" % number # Python2
or actually round off the other decimal places?
round(number,1)
or even round strictly down?
math.floor(number*10)/10
...
How to get a random number between a float range?
...ndom number in the range [a, b) or [a, b] depending on rounding github.com/python/cpython/blob/…
– Pavel
Jun 4 '19 at 8:47
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