Question

Hello. I'm trying to control the input type of a raw_input from the user. Specifically, I want to allow the user to input a tuple of numbers and have a function evaluate this tuple (by using their positions ...or index).

The problem is: no matter what I tell the program the input is..a list..a tuple...a list of floats...it evaluates them as a string.

Ex. Me: list(raw_input("tuple?"))
User: 1.0, 1.0, 1.0, 1.0, 1.0

If I then print tuple[1] it will return "." because its the second character in this string.

Help!

Answer 1

what version of python are you using? Also, are you wanting the user to imput a float only?

Answer 2

im not 100% if this is what you are looking for but let me know if it helps. Im on lecture 9 of this course so im not an expert. This should work for ints and floats . I am using python version 2.7.3

numlist = []
numberamount = int(input("how many numbers would you like to enter?"))
for i in range(numberamount):
if i == 0:
numbers = input("Please enter your first number")
numlist.append(numbers)
elif i > 0:
numbers = input("Please enter your next number")
numlist.append(numbers)

print(numlist)

Answer 3

Oh I see you want that the user inputs a sequence of numbers in the same line and you evaluate them, right? I'm a python 3.x user so I'll write down the code in this version:

# Here we define an empty list for manipulate those numbers (or whatever)
numbers_list = []

# Here we ask for the user to input how many objects does want...
howmany_numbers = int (input('How many numbers do you want to type?: '))

#Now we make a loop taking the user's input value
for i in range (0, howmany_numbers):
addnumbers_list = float(input('Type the number: '))
numbers_list.append(addnumbers_list)

# and here you can print and do what you want with the information
print ('Numbers: ', numbers_list)
print ('Lenght: ', len(numbers_list))
print ('Numbers: ', numbers_list[:]) #calling them from index

#here you can play around..
min_number = min(numbers_list)
max_number = max(numbers_list)

print ('Minimum number: ', min_number)
print ('Maximum number: ', max_number)

#I hope this helps!