Only read the numbers in file-CodePudding

I have a problem reading numbers from a file that have word/letters, I want to skip the "word" part and only read the numbers and add them to the list.

File list.txt

Salad         5 1 0 0 2 1

This was my last attempt:

f =  open('text.txt', 'r')
line = f.readline(14)
print(line)

Output:
Salad

This is what I want to output:

[5, 1, 0, 0, 2, 1]

CodePudding user response：

You can use .isnumeric():

with open("list.txt") as input_file:
    words = input_file.readline().split()
    result = [int(word) for word in words if word.isnumeric()]
    print(result)

This outputs:

[5, 1, 0, 0, 2, 1]

CodePudding user response：

You can import re and use it to find the integers in the string.

The end result would be a list containing the numbers but with the string data type so I have to use a for loop to convert the items to integer data type.

import re
f =  open('text.txt', 'r')
line = f.readline().strip()

k = re.findall('[0-9] ', line)
k = [int(i) for i in k]

print(k)