Futurize
Warning
This guide is obsolete; scripts were migrated to Python 3 many years ago.
Futurize takes in your Python 2 code and turns it into valid Python 3 code, and also makes it backwards compatible with Python 2 using future package.
Using Futurize:
There are mainly two ways on how you can translate your script using Futurize. More information could be found here.
Translating a single file
Open Command Prompt
cd
C:\Instrument\Apps\Python\Scriptsfuturize
path\to\your\script
Now it should suggest some changes, to overwrite your current file with the suggested changes run the following command.
futurize -w
path\to\your\script
Translating multiple files at once
You have to manually create a list of python scripts you want to translate and place them in a separate folder. Replace path\to\your\recently\created\folder with the name of the folder where you have bundled all your script.
Open Command Prompt
cd C:\Instrument\Apps\Python\Scriptsfuturize path\to\your\recently\created\folder -wno name_of_your_output_folder
name_of_your_output_folder = name of the folder where you want to save the output, does not require to be created beforehand.
The output will be saved in path\to\your\folder\name_of_your_output_folder
Common Problems and troubleshooting:
Separating Unicode from bytes:
Python 2 str is equivalent to python 3 bytes and Python 2 Unicode is now Python 3’s default string literal. Unicode in Python 2 is implicitly converted to bytes when it is being compared against bytes b'123' == u'123 will result to True in Python 2 whereas in Python 3 this will result to False.
Division:
In Python 3, all divisions between int values will result into float. If you want an integer division/floor division ‘//’ can be used in both python 2 and 3.