owattr overwrites attributes.
Project description
owattr overwrites attributes.
Example
config.py:
import sys
import owattr
REDIS_URL = "redis://localhost:6379/0"
IS_DEV_ENV = True
owattr.from_dict(sys.modules[__name__], dict(os.environ))
The config
module has REDIS_URL
as attribute. You might want to change the value for your production environment. In this example, if you have defined REDIS_URL
in environment variables, when you load config
module, it is overwritten. If you don’t define REDIS_URL
, you can use the original value.
When owattr read the dict, it casts dict value to type of the original value. So in environment variable, everything is str type. In this example, if you have defined IS_DEV_ENV=False
in environment variable, IS_DEV_ENV
of config
has False
as bool type.
Booleans are cast as follows:
'false'
,'False'
and''
are cast to False'true'
and'True'
are cast to Trueanything else raises a
'ValueError'
If your object has __all__
, owattr overwrites only variables which written in __all__
.
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