Merge Python dictionaries

merge_dicts.py

# This version accepts any number of dictionaries
# http://stackoverflow.com/a/26853961
def merge_dicts(*dict_args):
    """
    Given any number of dicts, shallow copy and merge into a new dict,
    precedence goes to key value pairs in latter dicts.
    """
    result = {}
    for dictionary in dict_args:
        result.update(dictionary)
    return result

# This version only accepts two dictionaries
# def merge_dicts(a, b):
#     merged = a.copy()
#     merged.update(b)
#     return merged