CODEWITHSUNDEEP
pythonstring
user13906062
user13906062

Reputation:

How can I separate the first word of a string?

I made a script with BeautifulSoup4 that retrieves the price of a crypto-currency from coinmarketcap.

The text I get is in a string:

result = $3.75

how can I convert the result to float? I have to delete the $, how to do with a split?

result_without_dollar = result.split("$")

I tried but I only get back """.

I'd like to get

price = 3.75 , and price.type is float

Upvotes: 1

Views: 356

Answers (4)

The fourth bird
The fourth bird

Reputation: 163287

You could also be a bit more specific about the value of result, and check the format of the string first, matching $ and capturing the numerical value in group 1.

\$(\d+(?:\.\d+)?)$

The pattern matches:

  • \$ Match $
  • ( Capture group 1
    • \d+ Match 1+ digits
    • (?:\.\d+)? Match an optional decimal part
  • ) Close group 1
  • $ End of string

If the pattern matches, print group 1.

import re

result = "$3.75"
m = re.match(r"\$(\d+(?:\.\d+)?)$", result)
if m:
    fl = float(m.group(1))
    print(fl)

Output

3.75

Upvotes: 1

cards
cards

Reputation: 4975

I assumed that the string in question is 'result = $3.75', not clear from the question.

Find the position of the $ symbol and then slice the string.

s = 'result = $3.75'
price = float(s[s.find('$')+1:])

Output

3.75

Upvotes: 0

CryptoNoob
CryptoNoob

Reputation: 161

If you insist on using split() you can do this like this:

result_without_dollar = float(result.split('$')[1])

Notice that split() returns a list.

However, you can achieve this more simply like this:

result_without_dollar = float(result[1:])

Upvotes: 2

Santiago 43
Santiago 43

Reputation: 15

Try with

result_without_dollar=result.replace('$','')

Upvotes: 0

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