How to create float type value in Python
float type variable
Float Numbers are numbers with a fractional part.
Floating-point number literals have two forms. One is to use decimal as the follows.
1.23, 1., .1
We can also write floating-point number in
scientific form by combining number and e.
3.14e-10, 4E210, 4.0e+210,
Operators with mixed type operands convert the integer operand to floating point.
print 1.0 / 2.0 # www .j av a 2 s.co m
print 1/2.0
print 1.0/2
print 1/2.
print 3 * 3.75 / 1.5
print 7.0 / 2
The code above generates the following result.
Convert string to float type
handling exceptions when converting string to float.
try:# www . ja v a 2 s . c o m
num = float(raw_input("Enter a number: "))
except:
print "Something went wrong!"
try:
num = float(raw_input("\nEnter a number: "))
except(ValueError):
print "That was not a number!"
try:
num = float(raw_input("\nEnter a number: "))
except(ValueError):
print "That was not a number!"
else:
print "You entered the number", num