How to convert string values to integer values while reading a CSV file?

Question

When opening a CSV file, the column of integers is being converted to a string value (\'1\', \'23\', etc.). What\'s the best way to loop through to convert these back to intege

Answer 1

You could just iterate over all of the rows as follows:

import csv

with open('testweight.csv', newline='') as f:
    rows = list(csv.reader(f))      # Read all rows into a list

for row in rows[1:]:    # Skip the header row and convert first values to integers
    row[1] = int(row[1])

print(rows)

This would display:

[['Account', 'Value'], ['ABC', 6], ['DEF', 3], ['GHI', 4], ['JKL', 7]]

Note: your code is checking for > 's'. This would result in you not getting any rows as numbers would be seen as less than s. If you still use Python 2.x, change the newline='' to 'rb'.