My problem is when I enter a number in the input field, it becomes number with special character. I don't know why it's adding extra characters to input. You can see the example. I entered just 5.2 and it became '5.2&
"""
length of rectangle = a
width of rectangle = b
calculate the area and perimeter of the rectangle
"""
a = 6
b = float(input("width: "))
area = a*b
perimeter = (2*a) (2*b)
print("area: " str(area) " perimeter: " str(perimeter))
File "c:\Users\HP\OneDrive - Karabuk University\Belgeler\Downloads\first.py", line 8, in <module>
b = float(input("width: "))
ValueError: could not convert string to float: '5.2&
Could you please help me?
CodePudding user response：
For me It's working fine...See my output..
Note: It throws error at last line in your code because you can't concatenate a str with an int.
So, you need to convert int to str before concatenating your variables
a = 6
b = float(input("width: "))
print(b)
area = a*b
perimeter = (2*a) (2*b)
print("area: " str(area) " perimeter: " str(perimeter))
#output
width: 5.2
5.2
area: 31.200000000000003 perimeter: 22.4
Alternate solution 2
Idk why it's adding extra chars to your user input...Anyway you can filter user input once entered as follows.
import re
a = 6
b = (input("width: "))
b=str(b)
b=re.sub("[^0-9^.]", "", b)
b=float(b)
print(b)
area = a*b
perimeter = (2*a) (2*b)
print("area: " str(area) " perimeter: " str(perimeter))
output #
width: 5.2b
5.2
area: 31.200000000000003 perimeter: 22.4
CodePudding user response：
"""
length of rectangle = a
width of rectangle = b
calculate the area and perimeter of the rectangle
"""
"""
We cannot replicate this error.
b = float(input("width: "))
ValueError: could not convert string to float: '5.2&
Debug by breaking down the code to see which function is the source of the
error.
"""
a = 6
# b = float(input("width: "))
s = input("width: ")
print("s= " s)
b = float (s)
area = a*b
perimeter = (2*a) (2*b)
print("area: " str(area) " perimeter: " str(perimeter))
Output
width: 5.2
s= 5.2
area: 31.200000000000003 perimeter: 22.4