Although Python excels in one-off, general-purpose tasks, its biggest drawback is speed. It doesn’t match Java in supporting real-time tasks or financial transactions where milliseconds matter.

Python isn't the only option for programming machine learning applications: there’s a growing group of developers who use JavaScript to run machine learning models.

Speed in the Core Python (CPython) is one of the reasons why other implementations have emerged, such as Pyston. ... JavaScript has most developers but Rust is the fastest growing.

Three years ago, Lynn Greiner interviewed the big cheeses responsible for the popular scripting languages PHP, Perl, Tcl, Python, Ruby and JavaScript to find out where they believed the languages ...