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Top Forums UNIX for Beginners Questions & Answers How to set python2 as my default? Post 303035086 by wisecracker on Tuesday 14th of May 2019 01:03:01 PM
Old 05-14-2019
Hi Circuits...

In a short word, DON'T!
Python 2.x.x and 3.x.x are worlds apart.
If your install uses Python 3.x.x then leave well alone as it could well be used by the OS for other things during bootup and the like.
There is nothing to stop you using Python 2.x.x but expect significant differences between the two.
One simple major difference is Python 2.x.x uses print as a statement/command whereas Python 3.x.x has print() as a function.
Another important one is raw inputting is raw_input() in Python 2.x.x and just input() in Python 3.x.x.
Python 2.x.x input() is NOT the same as Python 3.x.x input() .
There are numerous more differences that you should recode anything you write to suit version 3.x.x as 2.x.x is not being supported after around 2020.

So to reiterate DON'T make python2 your default OR vice-versa!
 

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SHEDSKIN(1)															       SHEDSKIN(1)

NAME
Shedskin - An experimental (restricted) Python-to-C++ Compiler SYNOPSIS
shedskin [OPTION]... FILE DESCRIPTION
Shed Skin is an experimental compiler, that can translate pure, but implicitly statically typed Python (2.4-2.6) programs into optimized C++. It can generate stand-alone programs or extension modules that can be imported and used in larger Python programs. Besides the typing restriction, programs cannot freely use the Python standard library (although about 25 common modules, such as random and re, are currently supported). Also, not all Python features, such as nested functions and variable numbers of arguments, are supported. OPTIONS
-a --ann Output annotated source code (.ss.py) -b --nobounds Disable bounds checking -e --extmod Generate extension module -f --flags Provide alternate Makefile flags -l --long Use long long integers -m --makefile Specify alternate Makefile name -n --silent Silent mode, only show warnings -o --noassert Disable assert statements -r --random Use fast random number generator (rand()) -s --strhash Use fast string hashing algorithm (murmur) -w --nowrap Disable wrap-around checking -x --traceback Print traceback for uncaught exceptions -L --lib Add a library directory 0.9.2 2012-05-05 SHEDSKIN(1)
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