Created
February 4, 2020 13:21
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Example 20
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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("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) |
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