I have a file that has only numbers on each line. My question is, how do I convert each line from a string to an int?
I know i can do int(str) but how do I do this over each line of the file? I want to sum each number on each line and also count how many lines there are.
Ex of file contents:
> 5
> 3
> 5
> 90
with open(filename) as f:
content = f.readlines()
content = [int(x.strip()) for x in content]
This reads every line in the file, converts the values into integers, and appends them all into a list called content.
To sum all the values just do:
sum = 0
for value in content:
sum += content
You could answer this by googling, but try breaking this into steps:
Open the file:
with open("file.txt", 'r') as file:
<do something with the file>
Read the lines out:
with open("file.txt", 'r') as file:
lines = file.readlines()
Iterate through the lines:
with open("file.txt", 'r') as file:
lines = file.readlines()
for line in lines:
<do something with the lines>
Add them up and print it out:
total = 0
with open("file.txt", 'r') as f:
lines = f.readlines()
for line in lines:
total += int(line)
print("total is ", total)
