Typecasting in Python

Computer Science Level 3

Which of the following Python2 pieces of code given below give(s) error?

1. 

1
 
a = int ('4.0')

2. 

1
 
b = float ('-9')

3. 

1
 
c = str (12)

2 1 and 3 1, 2, and 3 1 1 and 2 3 2 and 3 None of these

Zeeshan Ali by Zeeshan Ali , 25, Pakistan

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2 solutions

Viki Zeta
May 17, 2017 
1
2
 
a = int("4.0")
#          ^ decimal system is not a base 10 number system.

2 Helpful 0 Interesting 0 Brilliant 0 Confused
Zeeshan Ali
May 17, 2017 
1
 
a = int ('4.0')

ValueError Traceback (most recent call last)

<ipython-input-41-8073d7eae12d> in <module>()

----> 1 int('4.0')

ValueError: invalid literal for int() with base 10: '4.0'

Reason: 4.0 is a float value in the string '4.0'

Solution: Convert the string into float, then the float to int as follow 

1
 
a = int (float ('4.0'))

4

2 Helpful 0 Interesting 0 Brilliant 0 Confused

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