human
Write me a Python code to iterate an nest dict and return a return value.
assistant
Here is a Python code to iterate an nest dict and return a return value

import pandas as pd

def iterate_nest_dict(d):
    """
    Iterate an nest dict and return
    :param d:
    :return:
    """
    for k, v in list(d.items()):
        if isinstance(v, dict):
            for k2, v2 in iterate_nest_dict(v):
                yield k, k2, v2
        else:
            yield k, v

# Enter the dict
d = {"a": {"b": 1, "c": 2}, "d": 3}

# Calling the function
print((next(iterate_nest_dict(d))))

#Example Output
# ('a', 'b', 1)

#Remember to inspect code for bugs.