I Think i Have another issue with code

[mrwhitelab7860]

I Found an issue with code check line 108 .
line 108 if port is '':
continue

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When I execute command proxy-checker.py proxy_list.txt

RESULT:
OK proxies: 0
Warning proxies: 0
Bad proxies: 0
Traceback (most recent call last):
File "test.py", line 159, in
main()
File "test.py", line 135, in main
result_text = proxy_check_result.decode('utf8').strip()
AttributeError: 'bool' object has no attribute 'decode'