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How to make a chain of function decorators?
...the documentation to see how decorators work. Here is what you asked for:
from functools import wraps
def makebold(fn):
@wraps(fn)
def wrapped(*args, **kwargs):
return "<b>" + fn(*args, **kwargs) + "</b>"
return wrapped
def makeitalic(fn):
@wraps(fn)
def wr...
Get a specific bit from byte
I have a byte, specifically one byte from a byte array which came in via UDP sent from another device. This byte stores the on/off state of 8 relays in the device.
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How to get the instance id from within an ec2 instance?
How can I find out the instance id of an ec2 instance from within the ec2 instance?
32 Answers
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How to convert a PIL Image into a numpy array?
...uld be able to do either pic.putdata(pix) or create a new image with Image.fromarray(pix).
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returning in the middle of a using block
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@James Curran. From top to here, Only you explained what happed in the background. Many thanks.
– Sercan Timoçin
Sep 10 '19 at 15:18
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How do I contribute to other's code in GitHub? [closed]
...orked a project, you can develop in any branch you want (a new one, or one from the original project)
Remember to:
add the original project as a remote (different form 'origin', since origin would be your own repo, result of the fork)
rebase your branch on top of the branch of the original repo y...
How can I explicitly free memory in Python?
...'m using python 3.6. Calling gc.collect() after loading a pandas dataframe from hdf5 (500k rows) reduced memory usage from 1.7GB to 500MB
– John
Jan 18 '18 at 20:30
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How to decide when to use Node.js?
...ited for applications where you'd like to maintain a persistent connection from the browser back to the server. Using a technique known as "long-polling", you can write an application that sends updates to the user in real time. Doing long polling on many of the web's giants, like Ruby on Rails or D...
How to run two jQuery animations simultaneously?
...'ve used it like this to slide in/out:
slide : function(id, prop, from, to) {
if (from < to) {
// Sliding out
var fromvals = { add: from, subtract: 0 };
var tovals = { add: to, subtract: 0 };
} else {
...
Why don't they teach these things in school? [closed]
...e very expensive. We'd need to run a complete, realistic software project from beginning to end, numerous times, with groups of programmers that have equivalent expertise, using different techniques. At the very least we'd need lots of data about existing projects which those projects would be unw...