Describe the bug

For a cpdef variable declared at the module level like this

# test_cpdef_module_var.pyx

...
cpdef str abc = 'this is abc'
...

I would expect that I can access this Python string in the Python space simply by test_cpdef_module_var.abc. However, this appears to be not possible, and we had to work around it by explicitly declaring a Python object referencing it:

# test_cpdef_module_var.pyx

...
cpdef str _abc = 'this is abc'
abc = _abc
...

which is both counterintuitive and cumbersome. I tried searching in the issue tracker but it doesn't seem to be reported yet, and the closest report I found is this (#656) but not exactly the same, so I hope I am simply missing something obvious...

To Reproduce
See above.

Expected behavior
See above.

Environment (please complete the following information):

• OS: Linux
• Python version: 3.7.8
• Cython version: 0.29.21