import sys
print("Normální text")
print("ještě jeden řádek", file=sys.stdout)
print("chyba", file=sys.stderr)

# file = open("in.txt")
# file = open("Z:/cviceni/materialy/05/in.txt")
# line = file.readline()
# print(line)

import os
current_file_path = os.path.realpath(__file__)
print(current_file_path)
print(__file__)

current_file_directory = os.path.dirname(current_file_path)
print(current_file_directory)

input_file_path = current_file_directory + "/in.txt"
file = open(input_file_path)
line = file.readline()
print(line)

print(repr(line))
print(line.strip())
print(repr(line.strip()))

file.close()