How do I multiply the integers and floats on each line and add them all together in my text file?

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Hi everyone now I have a problem where I want to add an option in my software where it multiplies the integers and floats on each line in my text file and adds them all up together and outputs the answer when the user accesses this option.But I'm getting something else, can someone help? My text file looks like this:

```Jumpst, comedy, 89, 6.0
Endgame, science-fiction, 58, 4.5
Up, animated, 42, 3.0
IT, horror, 50, 6.2
Johnwick, action, 10, 5.9
Palmsprings, romance, 33,End 8.0
Parasite, thriller, 12, 0.75
Harrypotter, fantasy, 60, 6.0
Babydriver, music, 22, 4.3
1917, war, 66, 1.75```

And my code is:

Python

def totalvalue():
    total = open('A3_s3899885_stock.txt', 'r')
    content = total.readlines()
    a = 0
    for line in content:
        for i in line:
            if i.isdigit() == True:
                a += int(i)
                print("The sum is:", a)

I think i need a dictionary but I dont know how to do it.

What I have tried:

Python

def totalvalue():
    total = open('A3_s3899885_stock.txt', 'r')
    content = total.readlines()
    a = 0
    for line in content:
        for i in line:
            if i.isdigit() == True:
                a += int(i)
                print("The sum is:", a)

Posted 4-Jun-21 0:51am

Sai nathi

Updated 4-Jun-21 1:08am

Richard MacCutchan

v2

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Patrice T 4-Jun-21 7:14am

"getting something else"
What is the something else ?
and what result do you expect ?

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OriginalGriff · Answer 1 · 2021-06-04T01:00:00

Not like that!
Look at your data: it's what is called a CSV (or Comma Separated Values) file, and that means that processing it character by character as you are won't work: you just build up something that is nothing like the actual data.
For example, with your code the first line of your file will produce the output:

The sum is:8
The sum is:17
The sum is:23
The sum is:23

Where at a guess it should produce just this:

The sum is:534.0

You need to do two things:
1) Simple: print the result after each whole line has been processed.
2) Read each line as CSV data, and "split it up" on the commas to separate the fields.

This may help: csv — CSV File Reading and Writing — Python 3.9.5 documentation[^]

CPallini · Answer 2 · 2021-06-04T01:08:00

Solution 2

Assuming that 'End' in

Quote:
Palmsprings, romance, 33,End 8.0

is just a typo, you could write a code similar to

Python

s = '''Jumpst, comedy, 89, 6.0
Endgame, science-fiction, 58, 4.5
Up, animated, 42, 3.0
IT, horror, 50, 6.2
Johnwick, action, 10, 5.9
Palmsprings, romance, 33, 8.0
Parasite, thriller, 12, 0.75
Harrypotter, fantasy, 60, 6.0
Babydriver, music, 22, 4.3
1917, war, 66, 1.75'''

sum = 0.0
for line in s.splitlines():
  f = line.split(',')
  sum = sum + float(f[2]) + float(f[3])

print(sum)

Posted 4-Jun-21 1:08am

CPallini

Comments

Sai nathi 4-Jun-21 7:20am

but all he information is in a text file and you are saying to make it a variable. Do you know how i can multiply the '89 and 6.0' and add them with the next line from the text file?

CPallini 4-Jun-21 7:24am

def totalvalue():
    total = open('A3_s3899885_stock.txt', 'r')
    content = total.readlines()
    sum = 0.0
    for line in content:
        f = line.split(',')
        sum = sum + float(f[2]) + float(f[3])

    print("The sum is:", sum)

How do I multiply the integers and floats on each line and add them all together in my text file?

2 solutions

Solution 1

Solution 2

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