Simple python module to keep function signature introspection compatibility between python versions
pip install contrat
The following example work for python 2.7 and python 3.0+:
#!/usr/bin/python
from contrat import getargspec
def sample(arg1, arg2=True, arg3=1):
pass
print(str(getargspec(sample)))
# will display
# ArgSpec(args=['arg1', 'arg2', 'arg3'], varargs=None, keywords=None, defaults=(True, 1))