how to convert number < 1 from string to float python

Question

my question is simple.

I got my string :

a = '0,0127'

I want to convert it to a number but when i compile

float(a)

i got the following message error :

ValueError: could not convert string to float: '0,0127'

Is there another way to convert it to a number ?

Take a look at [the documentation of `float`](https://docs.python.org/3/library/functions.html#float) which describes the syntax that can be parsed. — , Jul 19 '18 at 19:09
duplicate of https://stackoverflow.com/questions/6633523/how-can-i-convert-a-string-with-dot-and-comma-into-a-float-in-python — joel, Jul 19 '18 at 19:10

score 3 · Accepted Answer · answered Jul 19 '18 at 19:08

3

Using str.replace

Ex:

a = '0,0127'
print(float(a.replace(",", ".")))

Output:

0.0127

answered Jul 19 '18 at 19:08

Rakesh

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Beat me by 21 seconds. =) – Auden Young Jul 19 '18 at 19:09

score 3 · Answer 2 · edited Jul 19 '18 at 19:10

3

The reason this isn't working is because the decimal type only recognizes periods (.) for the decimal delimiter as this is what is common in, e.g., english. You could manually change the string or do

a = a.replace(",", ".")
float(a)

Which should work.

edited Jul 19 '18 at 19:10

answered Jul 19 '18 at 19:09

Auden Young

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how to convert number < 1 from string to float python

2 Answers2