regex - Python - extract numbers and commas from string (with re.sub) -


i have following string (python) :

test = "    +30,0 eur abcdefgh   "

i want remove numbers , comma ",".

expected result: "30.0"

so based on re doc tried :

test = re.sub('^[0-9,]', "", test)

output is:

"    +30,0 eur abcdefgh   "

nothing happened. why?

the ^ needs go inside brackets.

>>> re.sub('[^0-9,]', "", test) '30,0'

to change comma decimal:

>>> '30,0're.sub('[^0-9,]', "", test).replace(",", ".") '30.0'

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