#PYTHON RUNNER TECHNIQUE HOW TO#
#PYTHON RUNNER TECHNIQUE CODE#

#PYTHON RUNNER TECHNIQUE CODE#

Now one may ask a question like, Why doesn’t Python do this? Answer to this would be Python is dynamically typed which simply means that any variable can change its type and can change it’s value at any point in the program while it’s running which means that we can’t actually compile the entire program beforehand because we can’t do all of these checks at once because we don’t know what type these variables are going to be, they are going to change at runtime, different things are going to happen and because of that we can’t get all these optimization that we might have in a lower level language like Java, C or C++ and that is kind of the fundamental reason the language is slow, this dynamic typing and any fast language is going to have a compiler that’s going to run through, it’s going to make sure that everything is good, it’s going to do all these checks before it actually ends up running the code at runtime where what happens in Python is all of your code is actually compiled and checked at runtime so rather than compiling it before and taking all that time beforehand while you’re running the code, many different checks are happening to make sure that say this object is correct, these types are proper, everything is working the same.

Now although this leads to much longer development times and takes a much longer time to write your code but what it does is increase efficiency when you are compiling, now the reason this actually works and the reason it works so much faster than Python code is because if you know the type that a specific variable or object is going to be, you can perform a ton of different optimizations and avoid performing a ton of different checks while you’re actually running the code because these checks are performed at compile time in Java essentially you can’t compile any Java code that hasn’t actual or even just like typed errors while you’re writing that code you are going to try to compile it and it would say like this type isn’t accurate, you can’t do this, you can’t compile it because it knows that when it comes to runtime that’s not going to work so essentially all of these checks that actually needs to be performed in Python when the code is running are performed beforehand and there’s just a ton of optimization done because of this statically typed length. Now what happens in Java is when you write code, you need to define what type each of your variables is going to be, what type your methods and functions are going to be returning and you pretty much have to define exactly what everything’s going to be throughout your code. Now in Java, everything is statically typed and this language is actually compiled before it runs, unlike Python that’s compiled at runtime through an interpreter. The reason Python is slow is because it’s dynamically typed now we’re going to talk about this more in detail but I want to give a comparison to a language like Java.

#PYTHON RUNNER TECHNIQUE HOW TO#

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Python runner technique