In Python, a SyntaxError happens when the interpreter finds code that does not conform to the rules of the Python language.

PyApp seems to be taking the Python world by storm, providing long-awaited click-and-run Python distribution. For developers ...

This doesn't bother Python, but it should bother you, either because the type annotation needs to be loosened up, or because (as in this case), it's calling the function with the wrong type of ...