How do you take a users input as a float?

Question

I\'m running Python 2.7.10. I have the following code block from a program I\'m working on.

with open(\'inventory.txt\', \'r+\') as f:
  inventory = {}
  whi         


        

Answer 1

Try using my code. I just made it and started browsing the web for people that. Disclaimer:I made it in Python 3.7 so I am not sure it will work with your problem.

#Get Input
User_Input_Number_Here = input ("Enter a number: ")
try:
#Try to convert input to Integer
   User_Input_Converted_Here = int(User_Input_Number_Here)
#It worked, now do whatever you want with it
   print("The number is: ", User_Input_Converted_Here)
except ValueError:
#Can't convert into Integer
    try:
#Try converting into float
       User_Input_Converted_Here = float(User_Input_Number_Here)
#It worked, now do whatever you want with it
       print("The number is: ", User_Input_Converted_Here)
    except ValueError:
#Can't convert into float either. Conclusion: User is dumb
#Give custom error message
       print("Are you by any chance...\nRetarded?")

Answer 2

The short answer is to use float(raw_input('Price: ')), but it might be better to write a method to handle the inputing of floats (and retry until you get what you need).

def input_float(prompt):
    while True:
        try:
            return float(raw_input(prompt))
        except ValueError:
            print('That is not a valid number.')

then use the method

inventory[item] = input_float('Price: ')