python中同名的变量和常量

Question

If I execute the following code in python on CPython interpreter, it works as expected:

A = 1
a = 2
print(A)
print(a)

Output:

1
2

The question is will this behavior persist with other implementations of Python interpreters? Can I rely on this and produce such a code?

Answer 1

These effectively are just two different variables, so I would imagine that this behaviour will persist in all systems.

By convention, constants are upper-case. However, Python is seeing two completely different variables, as it's a case-sensitive language.

Not entirely sure if relevent, but see here for naming conventions.