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What is the purpose and use of **kwargs?
...x when calling functions by constructing a dictionary of keyword arguments and passing it to your function:
>>> kwargs = {'first_name': 'Bobby', 'last_name': 'Smith'}
>>> print_keyword_args(**kwargs)
first_name = Bobby
last_name = Smith
The Python Tutorial contains a good explan...
How in node to split string by newline ('\n')?
...y newline ('\n') ?
I have simple string like var a = "test.js\nagain.js" and I need to get ["test.js", "again.js"] .
I tried
...
How to get current memory usage in android?
I have used /proc/meminfo and parsed command response.however it result shows that :
11 Answers
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Bash tool to get nth line from a file
...
head and pipe with tail will be slow for a huge file. I would suggest sed like this:
sed 'NUMq;d' file
Where NUM is the number of the line you want to print; so, for example, sed '10q;d' file to print the 10th line of file.
Ex...
What does the “expand” option do in grunt-contrib-copy? The examples all use it but the docs say not
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Expand lets you specify whether you want to create the destination path in full (e.g: /path/missing1/missing2), or only create the last directory when its parent exists (/path/existing/missing).
...
What is Delegate? [closed]
...til runtime. So you use a "delegate" for that purpose. Delegates come in handy for things like event handlers, and such, where you do different things based on different events, for example.
Here's a reference for C# you can look at:
In C#, for example, let's say we had a calculation we wanted to...
Duplicate log output when using Python logging module
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The problem is that every time you call myLogger(), it's adding another handler to the instance, which causes the duplicate logs.
Perhaps something like this?
import os
import time
import datetime
import logging
loggers = {}
def myLogger(name):
global loggers
if loggers.get(name):
...
Search and replace in bash using regular expressions
...is method, i.e. perl, awk, e.g.:
echo "$MYVAR" | perl -pe 's/[a-zA-Z]/X/g and s/[0-9]/N/g'
This may allow you to do more creative matches... For example, in the snip above, the numeric replacement would not be used unless there was a match on the first expression (due to lazy and evaluation). A...
Regex to Match Symbols: !$%^&*()_+|~-=`{}[]:";'?,./
...
/[$-/:-?{-~!"^_`\[\]]/
There are three ranges. '$' to '/', ':' to '?', and '{' to '~'. the last string of characters can't be represented more simply with a range: !"^_`[].
Use an ACSII table to find ranges for character classes.
...
Play audio with Python
... @theonlygusti See here, for example.
– Anderson Green
Dec 4 '17 at 19:35
add a ...