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import sys
import pytest
from makefun import create_function
try: # python 3.3+
from inspect import signature, Signature, Parameter
except ImportError:
from funcsigs import signature, Signature, Parameter
def my_handler(*args, **kwargs):
"""This docstring will be used in the generated function by default"""
print("my_handler called !")
return args, kwargs
def test_positional_only():
"""Tests that as of today one cannot create positional-only functions"""
params = [Parameter('a', kind=Parameter.POSITIONAL_ONLY),
Parameter('args', kind=Parameter.VAR_POSITIONAL),
Parameter('kwargs', kind=Parameter.VAR_KEYWORD)]
func_signature = Signature(parameters=params)
if sys.version_info < (3, 8):
with pytest.raises(SyntaxError):
create_function(func_signature, my_handler, func_name="foo")
else:
dynamic_fun =create_function(func_signature, my_handler, func_name="foo")
assert "\n" + dynamic_fun.__source__ == """
def foo(a, /, *args, **kwargs):
return _func_impl_(a, *args, **kwargs)
"""
assert dynamic_fun(0, 1) == ((0, 1), {})
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