How to invoke a python static method inside class via string method name

Question

I have a the following strings defined which are specifying a python module name, a python class name and a static method name.

module_name = "com.processors"
class_name = "FileProcessor"
method_name = "process"

I would like to invoke the static method specified by method_name variable.

How do i achieve this in python 2.7+

[This](http://stackoverflow.com/questions/3849576/how-to-call-a-static-method-of-a-class-using-method-name-and-class-name) might be of some assistance! — Iggydv, May 11 '17 at 07:15

score 8 · Accepted Answer · answered May 11 '17 at 07:21

Use __import__ function to import module by giving module name as string.

Use getattr(object, name) to access names from an object (module/class or anything)

Here u can do

module = __import__(module_name)
cls = getattr(module, claas_name)
method = getattr(cls, method_name)
output = method()

score 1 · Answer 2 · answered May 11 '17 at 07:09

1

You can use importlib for this. Try importlib.import(module +"." + class +"."+ method)

Note that this concatenated string should look exactly like if you would import it via import module.class.method

answered May 11 '17 at 07:09

Sebastian Walla

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score 1 · Answer 3 · answered May 11 '17 at 07:19

Try this:

# you get the module and you import
module = __import__(module_name)

# you get the class and you can use it to call methods you know for sure
# example class_obj.get_something()
class_obj = getattr(module, class_name)

# you get the method/filed of the class
# and you can invoke it with method() 
method = getattr(class_obj, method_name)

How to invoke a python static method inside class via string method name

3 Answers3