How to define static class variable?

How to define static class variable and constant in Cython just as following code’s semantic?

1:  cdef class Car:
2:      cdef int battery=100 # Instance variable
3:      cdef static int total_car_count = 0 # Static variable shared among classes.
4:      cdef const int WHEEL_COUNT = 4 # Constant of class Car.

As far as I know, the syntax of line 3 and line4 is not supported by Cython… But is there any syntax to define static and constant variables in Cython? If not, is there any way to mimic the semantics of static and constant variables?

Thanks

[da-woods]

Did anything change?

No

[FilipDepta]

Ok, thank you. In my case, the class variable will be used in heavy number crunching, so a better option is to define it as a global C variable, I think.