General Tips python - Miscellaneous

table of Contents:

1. Find all numbers (python find digits in string) string

2. python generating continuous floating-point (e.g., 0.1, 0.2, 0.3, 0.4, ..., 0.9) (python range () for floats)

 

content:

1. Find all numbers (python find digits in string) string

method 1:

https://stackoverflow.com/questions/12005558/python-find-digits-in-a-string

name = 'body_flaw_validate_set20191119170917_'
list(filter(str.isdigit, name))
['2', '0', '1', '9', '1', '1', '1', '9', '1', '7', '0', '9', '1', '7']

Method 2:

https://www.geeksforgeeks.org/python-extract-digits-from-given-string/

import re
name = 'body_flaw_validate_set20191119170917_'
re.sub("\D", "", name)
'20191119170917'

 

2. python generating continuous floating-point (e.g., 0.1, 0.2, 0.3, 0.4, ..., 0.9) python range () for floats

https://stackoverflow.com/questions/7267226/range-for-floats

method 1:

[x / 10.0 for x in range(1, 10)]
[0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9]

 Method 2:

import pylab as pl
pl.frange(0.1,0.9,0.1)
array([0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9])

 Method 3:

import numpy
numpy.linspace(0.1, 0.9, num=9)
array([0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9])

 

3.