Reading a file line by line into elements of an array in Python

Sunday, September 29, 2019

So in Ruby I can do the following:

testsite_array = Array.new
y=0
File.open('topsites.txt').each do |line|
testsite_array[y] = line
y=y+1
end

How would one do that in Python?

Answer

testsite_array = []
with open('topsites.txt') as my_file:
    for line in my_file:
        testsite_array.append(line)

This is possible because Python allows you to iterate over the file directly.

Alternatively, the more straightforward method, using f.readlines():

with open('topsites.txt') as my_file:
    testsite_array = my_file.readlines()

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