Is there a pythonic way to check if a prompt or input statement is a float?

Question

Hi I think I see a lot of people having knowledge in depth in field of computer science.

My question is in python3, is there a way to check if an input statement or a string value is a float?

I am expecting something like

str.isfloat()

Thank you for taking a look for this poor student :)

I posted the question because I know there is no such thing as str.isfloat() — user7693152, Mar 12 '17 at 01:13
Use the common [EAFP](https://docs.python.org/3.5/glossary.html?highlight=eafp) python style and just catch the exception. — AChampion, Mar 12 '17 at 01:21

score 0 · Answer 1 · answered Mar 12 '17 at 01:14

0

Pass it to the float constructor and catch the exception.

>>> float('1')
1.0
>>> float('2.0')
2.0
>>> float('three')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ValueError: could not convert string to float: 'three'

answered Mar 12 '17 at 01:14

Ignacio Vazquez-Abrams

776,304
153
1,341
1,358

Is there a pythonic way to check if a prompt or input statement is a float?

1 Answers1