The question you found is mainly discussing the difference between python2 and python3 since there is no argument end for print. So simply stated end is what you want to be printed after the. The end=' ' is just to say that you want a space after the end of the statement instead of a new line character.
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End command is used when a programmer finish writing programming language. In python 2.x you would have to do this. The default value of end is \n meaning that after the print statement it will print a new line.
Using the command /end in the last line prevents.