Make python read 12 from file as 12 not 1 and 2

Question

Trying to make a program that provides the price to different numbers of stages. In "tripss.txt",third line is the number 12, python interprets it as 1 and 2 instead and gives the price for each rather than the number as a whole, any way to fix it to that it's read as 12?.

infile = open("tripss.txt","r")  
customer_one= infile.readline().strip("\n")     
customer_two= infile.readline().strip("\n")  
customer_three= infile.readline().strip("\n")      
one_to_three_stages="euro 1.55"   
four_to_seven_stages="euro 1.85"   
seven_to_eleven_stages="euro 2.45"  
more_than_eleven_stages="euro 2.85"  
cheapest = ["1","2","3"]       
cheap = ["4","5","6","7"]    
expensive = ["7","8","9","10","11"]     
    for number in customer_three:     
    if number in cheapest:   
        print one_to_three_stages    
    elif number in cheap:     
        print four_to_seven_stages    
    elif number in expensive:    
        print seven_to_eleven_stages   
    else:         
        print more_than_eleven_stages

Your indentation is broken. And you probably need to convert your string to an int (if that's what you want), or don't loop over a single string (that will give you each character one after the other). — Andras Deak -- Слава Україні, Oct 15 '16 at 20:38
Please supply example input. I think for instance that line 3 is just "12\n" from your comments but I'm not sure. — tdelaney, Oct 15 '16 at 21:15

score 0 · Answer 1 · answered Oct 15 '16 at 20:48

In your code it seems that you want to consider customer_three as a list of strings. However in your code it is a string, not a list of strings, and so the for loop iterates on the characters of the string ("1" and "2").
So I suggest you to replace:

customer_three= infile.readline().strip("\n")

with:

customer_three= infile.readline().strip("\n").split()

score 0 · Answer 2 · answered Oct 15 '16 at 21:18

You say third line is the number 12 so after customer_three= infile.readline().strip("\n"), customer_three will be the string "12". If you then start the for loop for number in customer_three:, number will be assigned each element of the string - first "1", and then "2".

The solution is simple. customer_three already has the string you want. Remove the for loop completely.

Make python read 12 from file as 12 not 1 and 2

2 Answers2