46 lines
617 B
Python
46 lines
617 B
Python
from sys import argv
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script, input_file = argv
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def print_all(f):
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print(f.read())
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def rewind(f):
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f.seek(0)
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def print_a_line(line_count, f):
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print(line_count, f.readline())
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current_file = open(input_file)
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print("First let's print the whole file:\n")
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print_all(current_file)
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print("Now let's rewind, kind of like a tape.")
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rewind(current_file)
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print("Let's print three lines:")
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current_line = 1
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print_a_line(current_line, current_file)
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current_line = current_line + 1
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print_a_line(current_line, current_file)
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current_line = current_line + 1
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print_a_line(current_line, current_file)
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