How can I merge two Python dictionaries in a single expression?
For dictionaries x and y, z becomes a merged dictionary with values from y replacing those from x.
In Python 3.5 or greater, :
z = {**x, **y}
w = {'foo': 'bar', 'baz': 'qux', **y} # merge a dict with literal values
In Python 2, (or 3.4 or lower) write a function:
def merge_two_dicts(x, y):
z = x.copy() # start with x's keys and values
z.update(y) # modifies z with y's keys and values & returns None
return z
and
z = merge_two_dicts(x, y)
출처: https://stackoverflow.com/questions/38987/how-to-merge-two-dictionaries-in-a-single-expression
