Improving maintenance by reducing the degree of inputs

main.py

# Passing dictionaries
def deep_function(context):
    expected = context['expected']
    actual = context['actual']
    return expected == actual

def main():
    context = {
        'expected': 42,
        'actual': 40,
    }
    deep_function(context)

######
# Passing direct parameters
def deep_function(expected, actual):
    return expected == actual

def main():
    deep_function(42, 40)

    # or, if you don't want to rely on your IDE
    deep_function(expected=42, actual=40)