Introspection

Sometimes there will be a need to discover what attributes and classes are defined in any imported json module.

Starting from vs 0.1.2 the importjson module does provide a comprehensive set of functions and methods for introspection of the contents of the python module generated by the imported json file.

Introspection objects

object	fields
ModuleAttributeInfo	name - The name of the attribute default - The default value of the attribute
ClassInfo	name - The name of the Attribute cls_ - The actual class object of this name parent - The name of the parent class (or ‘object’)
ClassAttributeInfo	name - The name of the attribute default - The default value of the attribute
InstanceAttributeInfo	name - The name of the attribute default - The default value of the attribute

Module level Introspection

The imported module has two functions:

<module>.get_attributes()

A generator which will yield one or more ModuleAttributeInfo objects. The following code can be used to print the names of all module level fields :

import importjson
import jsonmodule

for attribute in jsonmodule.get_attributes():
    print( attribute.name )

<module>.get_classes()

A generator which will yield one or more ClassInfo objects. The following code can be used to print the names of all module level fields :

import importjson
import jsonmodule

for class_info in jsonmodule.get_classes():
    print( class_info_.name )

Class Level Introspection

Each class is provided with two introspection class methods :

<class>.get_class_attributes()

A generator which will yield one or more ClassAttributeInfo objects. The following code can be used to print the names of all class attributes of all classes in a module:

import importjson
import jsonmodule

for class_info in jsonmodule.get_classes():
    for attribute in class_info.cls_.get_class_attributes():
        print(attribute.name)

<class>.get_instance_attributes()

A generator which will yield one or more InstanceAttributeInfo objects. The following code can be used to print the names of all instance attributes of all classes in a module:

import importjson
import jsonmodule

for class_info in jsonmodule.get_classes():
    for attribute in class_info.cls_.get_instance_attributes():
        print(attribute.name)