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Instantiating class from the string variable - voltron - Jan-30-2018
Is it possible to import and instantiate class from the string variable, containing full class code? I only can think about saving code into temp file and importing this file using importlib.
RE: Instantiating class from the string variable - Gribouillis - Jan-30-2018
(Jan-30-2018, 06:46 AM)voltron Wrote: Is it possible to import and instantiate class from the string variable, containing full class code?You can exec() the code in a dict and get the class as a value in the dict.
RE: Instantiating class from the string variable - voltron - Jan-30-2018
(Jan-30-2018, 06:57 AM)Gribouillis Wrote: You can exec() the code in a dict and get the class as a value in the dict.
Thanks! Looks like what I need.
May I ask for more help? I'm trying to use following approach now
class_def = "class definition here"
globs = {}
exec(class_def, globs)
c = globs["ClassName"]()
# do something with cTo get class by name I parse class_def variable to extract class name. Is it possible to find class without knowing its name?
RE: Instantiating class from the string variable - Gribouillis - Jan-30-2018
(Jan-30-2018, 09:07 AM)voltron Wrote: Is it possible to find class without knowing its name?If there is only a class definition in the string, the dict will contain only the keys '__builtins__' and 'YourClassName'.
If there are more objects in the dict, you can examine them with the inspect module to find the class.
RE: Instantiating class from the string variable - voltron - Feb-05-2018
Thanks a lot! I managed to load class from the dict using inspect module.