Alright, I’m just getting started with this book and love it so far. But I encountered kind of a weird bug with exercise 20. Here is my code–which to the best of my understanding matches the book exactly.
EDIT: I am running python 3.7
from sys import argv
script, input_file = argv
def print_all(f):
print(f.read())
def rewind(f):
f.seek(0)
def print_a_line(line_count, f):
print(line_count, f.readline())
current_file = open(input_file)
print("First let's print the whole file:\n")
print_all(current_file)
print("Now let's rewind, kind of like a tape.")
rewind(current_file)
print("Let's print three lines:")
current_line = 1
print_a_line(current_line, current_file)
current_line = current_line + 1
print_a_line(current_line, current_file)
current_line = current_line + 1
print_a_line(current_line, current_file)
But my output is:
My possible idea is that for some reason the txt is in the wrong encoding version? Any other thoughts or fresh eyes that are seeing what I’m doing wrong? Thanks!