Struct fieldnames that start with number are ignored

[bobnal]

I found out that, passing a python dict or octave struct to an octave function, fieldnames that start with number are ignored.

Here an example.
python script

from oct2py import octave, Struct

test = Struct()

test["word"] = 100
test[str(3)] = 200
test["4"] = 300
test["4test"] = 400
test["test4"] = 500

print("Structure inside python")
print(test)
print("\n")

octave.oct_test(test)

octave function:

function oct_test(test_struct)

    disp("Structure inside octave function")
    disp(test_struct)

endfunction

the output is:
Structure inside python
{'word': 100, '3': 200, '4': 300, '4test': 400, 'test4': 500}

Structure inside octave function
scalar structure containing the fields:

word = 100
test4 = 500

Am i doing something wrong?

[blink1073]

I think it is a limitation in scipy.savemat. Here's the value we're passing to it in my local experiment:

array(['base', 'test', {'test4': 500.0, '4test': 400.0}], dtype=object)