How to extract all the numbers from a text file using re.findall() and compute the sum using a for-loop?

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How to extract all the numbers from a text file using re.findall() and compute the sum using a for-loop?

Assuming that you need to sum all the numbers in your txt:

total = 0
with open("regex_sum_167791.txt") as f:
    for line in f:
        total += sum(map(int, re.findall("\d+", line)))
print(total)
# 417209

Logics

To start with, try using with when you do open so that once any job is done, open is closed.

Following lines are removed as they seemed redundant:

count = count+1: Not used.
line = line.rstrip(): re.findall takes care of extraction, so you don't have to worry about stripping lines.
if len(x)!= 1 : continue: Seems like you wanted to skip the line with no digits. But since sum(map(int, re.findall("\d+", line))) returns zero in such case, this is also unnecessary.
num = int(x[0]): Finally, this effectively grabs only one digit from the line. In case of two or more digits found in a single line, this won't serve the original purpose. And since int cannot be directly applied to iterables, I used map(int, ...).

```

Pranav Codes