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How to remove the left part of a string?
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Starting in Python 3.9, you can use removeprefix:
'Path=helloworld'.removeprefix('Path=')
# 'helloworld'
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How do I get the full path of the current file's directory?
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1763
Python 3
For the directory of the script being run:
import pathlib
pathlib.Path(__file__).pare...
URL query parameters to dict python
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193
Use the urllib.parse library:
>>> from urllib import parse
>>> url = "http://...
How to change line width in IntelliJ (from 120 character)
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331
IntelliJ IDEA 2018
File > Settings... > Editor > Code Style > Hard wrap at
Int...
Which mime type should I use for mp3
I'm trying to decide which mime type to choose for returning mp3 data (served up by php)
5 Answers
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Jackson: how to prevent field serialization
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edited May 13 '18 at 10:32
narendra-choudhary
3,57433 gold badges2727 silver badges4646 bronze badges
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How to get a specific “commit” of a gem from github?
...m 'rails', :git => 'git://github.com/rails/rails.git', :branch => '2-3-stable'
gem 'rails', :git => 'git://github.com/rails/rails.git', :tag => 'v2.3.5'
Source: How to install gems from git repositories
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Find index of last occurrence of a substring in a string
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Use .rfind():
>>> s = 'hello'
>>> s.rfind('l')
3
Also don't use str as variable name or you'll shadow the built-in str().
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How to initialize an array's length in JavaScript?
Most of the tutorials that I've read on arrays in JavaScript (including w3schools and devguru ) suggest that you can initialize an array with a certain length by passing an integer to the Array constructor using the var test = new Array(4); syntax.
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How to smooth a curve in the right way?
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y = np.sin(x) + np.random.random(100) * 0.2
yhat = savitzky_golay(y, 51, 3) # window size 51, polynomial order 3
plt.plot(x,y)
plt.plot(x,yhat, color='red')
plt.show()
UPDATE: It has come to my attention that the cookbook example I linked to has been taken down. Fortunately, the Savitzky-Gola...