How can this code print Hello World without any print statement

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Chapters
00:00 Question
01:18 Accepted answer (Score 14)
01:43 Thank you

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Full question
https://stackoverflow.com/questions/3140...

Question links:
[Here's]: http://codepad.org/UzSmoxF2
[Here]: https://benkurtovic.com/2014/06/01/obfus...

Accepted answer links:
https://benkurtovic.com/2014/06/01/obfus...

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Tags
#python

#avk47

ACCEPTED ANSWER

The answer to the question as written: The code avoids a print statement by os.write()ing to stdout's file descriptor, which is 1:

getattr(__import__("os"), "write")(1, "Hello world!\n")

The rest of the explanation is detailed at https://benkurtovic.com/2014/06/01/obfuscating-hello-world.html. Instead of a summary here, just read the original!