app.py

from dynaconf import Dynaconf


settings = Dynaconf(
    settings_file="config.toml",    # location of config file
    environments=[                  # available modes/environments
        "ansible",
        "puppet"
    ],
    envvar_prefix="TEFLO",          # prefix for exporting env vars
    env_switcher="TEFLO_MODE",      # Variable that controls mode switch
    env="ANSIBLE"                   # Initial env/mode
)

if settings.current_env == "ANSIBLE":   # this is the initial default
    assert settings.data_folder == "ansible/.teflo"

if settings.current_env == "PUPPET":    # only when TEFLO_MODE=puppet
    assert settings.data_folder == "puppet/.teflo"

assert settings.log_level == "debug"   # might be exported TEFLO_DEBUG_MODE

assert settings.workspace == "."

print(settings.data_folder)
print(settings['log_remove'])
print(settings.get("verbosity"))
print(settings.LOG_LEVEL)

config.toml

[default]
log_level = "info"
workspace= "."
data_folder= ".teflo"

[ansible]
data_folder = "ansible/.teflo"
log_remove = true
verbosity = "v"

[puppet]
data_folder = "puppet/.teflo"
log_remove = false
verbosity = "vvv"