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I'm using some function and it requires float number to do some maths. When I try to convert a fraction (example: 3/4 or 6/4) I get ValueError: could not convert string to float: '3/4' How can I overcome this problem? Obviously float("3/4") doesn't really work out great. Thanks in advance

Robin De Schepper
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Yolinco
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    Does this answer your question? [Safely evaluate simple string equation](https://stackoverflow.com/questions/43836866/safely-evaluate-simple-string-equation) – Random Davis Mar 11 '21 at 17:46
  • Can you please explain what exactly you are trying to do in details? Maybe there must be some other ways of solving the problem. – Tsubasa Mar 11 '21 at 17:47
  • You could use the fractions module: `from fractions import Fraction` then `float(Fraction('3/4'))` – user3697625 Mar 11 '21 at 17:49
  • I'm trying to make a discord bot @Xua. But franctions module seems the best way so I'd call this subject closed. Thanks everyone – Yolinco Mar 11 '21 at 17:56

3 Answers3

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Using the fractions module (@user3697625)

from fractions import Fraction
string = "3/4"
floatfromstring = float(Fraction(string))
101donutman
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Try this:

string = "3/4"
a = string.split("/")
out = float(a[0]) / float(a[1])

Alternatively, you could use the fractions module:

from fractions import Fraction
out = float(Fraction("3/4"))
QWERTYL
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Probably inferior to other solutions, but a one-liner!

result = eval("3/4")
tungli
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