f-string_deconverter

convert python f-string to older and compatible python string

This project provides a tool to convert:

python expression with f-strings to expression with simple python string
python files with f-strings to files with simple python strings
folders of python files with f-strings to folders of python files with simple python strings

Dependencies & Libraries

re
os
itertools

All are provided by the python 3 installation

Examples

convert string expression

old_expr:

    s = f"{alpha},{beta},{gamma:06d}"

to new_expr:

    s = "{},{},{:06d}".format(alpha, beta, gamma)

    from deconverter import deconvert_string
    old_expr = 's = f"{alpha},{beta},{gamma:06d}"'
    new_expr = deconvert_string(old_expr)

convert files:

file1.py to file2.py

    from deconverter import deconvert_strings_in_file
    deconvert_strings_in_file('file1.py', 'file2.py')

convert folders

folder1 to folder2

    from deconverter import deconvert_project
    deconvert_project(folder1, folder2)

Use case

vod-converter: [https://github.com/umautobots/vod-converter] uses python3.6 f-strings can be converted just by running this script:

python3 deconv_tool.py /full/path/to/vod-converter /full/path/to/vod-converter

After this command vod-converter can be executed with python3.5 which is python3 in older Linux distros.

Users can also import the deconverter.py as a module or use the deconv_tool.py.

Testing

There is a python file in tests .in.py and a desired output file .out.py in tests. So if you run vod converter in any of these examples in the file, there should be no diffence with the desired output file.

Note

This repo is still under development/testing, if you find any bugs, please report them to the issues tab.

Thanks for using it!!!

supernlogn/f-string-deconverter