Configcalc

Configcalc is a library to handle TOML configuration files with formulas. Formulas can make simple operations between variables contained in other parts of the configuration or given by the user at runtime.

Usage

Configcalc uses a TOML file. For example:

title = "TOML Example"

[owner]

[owner.info]
name = "Tom Preston-Werner"
dob = 1979-05-27T07:32:00-08:00
nb_of_days_per_month = 30
nb_of_months = 3
nb_of_days = "=nb_of_months * nb_of_days_per_month"
calculated_value = "= nb_of_days^3 * database.nb_of_ports + 2 / database.data[1][0]^2 * 2.32e-3 * _input_parts - cos(2*nb_of_days)"

Some strings are actually a formula which begins with "=". This formula can refer to its context (here, for example, nb_of_months). The content of the TOML file can be read and the formulas calculated automatically.

import configcalc as cc
config1 = cc.read_config_file(Path(r"path/to/config_file1.toml"))
config2 = cc.read_config_file(Path(r"path/to/config_file2.toml"))
merged_config = cc.merge_configs(config1, config2)
calculated_config = cc.perform_calculations(
        config=config,
    )