Python is a programming language that boasts a gentler learning curve, and a more intuitive coding style. Java is also another programming language, but with a distinct advantage compared to other programming languages. Programs made with Java can be run on any operating system that is able to run the Java virtual machine. This is because Java does not compile to native bytecode, like Python does; it compiles to a Java bytecode that can be read and executed by the virtual machine.
The use of a virtual machine impairs the performance of Java programs due to the overhead incurred. Programs that are compiled to native code, like Python, can perform at its best because it can take advantage of optimizations. Although you can compile Java programs to native code, it does not perform as well.
Java is a strongly typed language, while Python is not. Basically, Java does not allow the data type of a variable to be changed, while Python does. Unlike most programming languages, Python allows you to assign a string to a variable that once held an integer value. This is not possible with Java, and you need to define a variable for each one with the correct type.