User-defined class casting/conversion in python

[jiedxu]

It seems that to explicit cast an object in Python is not possible.

• https://stackoverflow.com/questions/3464061/cast-base-class-to-derived-class-python-or-more-pythonic-way-of-extending-class/67670780#67670780
• https://stackoverflow.com/questions/222877/what-does-super-do-in-python

However, in network, there are similar syntax design. See my discussion, https://stackoverflow.com/a/67670780/10181743 .

A constructor can be used to init a new object in some child class, because, in our case, the information required to init child classes is contained in Word object.

[jiedxu]

User-defined type conversion in C

• operator overloading
• Casting and type conversions in C#
• User-defined conversion operators in C#