Write a function named is_float(s) that takes one argument that is a string. It returns True if string s represents a floating point value and returns False otherwise. You are required to use try-except. The basic concept is to "try" to convert string s to a float and if it succeeds, return True, but if it fails (that is, an exception is raised), return False. Note that float() raises a ValueError exception.

Explanation:

# Python Programme

#!/usr/bin/python

# Function definition is here

def is_float( str ):

try:

float(str)

return True

except ValueError:

return False

# Now you can call is_float function

print(is_float("3.45"))

print(is_float("3e4"))

print(is_float("abc"))

print(is_float("4"))

print(is_float(".5"))

angvrswer:

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grfhrtrhr:

j

h

j

jjj

jj

j

j

j

m

j

h

yjujuju

jujuhuyhyt

j

hy

h

gh

g

g

g

g

gg

t

gt

gt

g

g

g

g

g

ef

f

d

dd

d

d

dd

d

d

d

d

d

d

d

d

d

d

d

d

d

d

d

d

d

d

d

d

d

d

d

d

d

d

d

d

d

d

d

d

d

d

d

d

f

s

bv

fb

c

fd

f

bf

bgf

n

g

bgr

gbr

bgr

gtr

bgr

gb

gb

gbgbbg

b

bgg

bbg

bfg

s

dcwf

fdb

b

ggb

bg

b

d

fh

d

e

f

w

fh

cd

cr

r

h

f

ww

a

v

f

vf

tr

rfe

rr

g

gg

e

go

d

d

c

r

rv

ng

gtg

gegte

g

gf

gf

g

gff

gf

gf

g

g

g

f

ds

wd

dfg

h

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jmhngf

dsaazxscvb

nmhgb

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zxcv

bghn

fd

gb

h