%time magic displays output even when code ends in semicolon #13837 (#13841) After the magic is evaluated and the result is calculated, the modification tests whether the evaluated magic was _time_ and whether semicolon is the final character. The result is killed if both things happen. My choice would be to remove the _time_ test, so a semicolon would prevent the print of the output of any magic, but this is only a suggestion I keep open. I did not write any automated test, but I can do that once (and if) the solution is accepted. [#13837](https://github.com/ipython/ipython/issues/13837) points to [#10227](https://github.com/ipython/ipython/issues/10227) (_Cell magic result in printing the last evaluated line even if followed by semicolon_). There, somebody says that ';' may be a meaningful character because we could have a C++ expression, for instance. The IPython repository says the documentation for other languages is in Jupyter. I ran Jupyter on my browser with C++ and saw that a semicolon after the last statement prevents the output to be printed (a semicolon between 2 statements in a cell seems to be necessary, though). See attached file for simple examples. Therefore, it seems that the semicolon at the end in C++ already behaves the same way that in Python and is not required by the interpreter.