On 2/5/2018 2:35 AM, Frank Millman wrote:
I recently learned that you can create a set 'on-the-fly' from two
existing sets using the '|' operator -
Python 3.6.0 (v3.6.0:41df79263a11, Dec 23 2016, 08:06:12) [MSC v.1900 64
bit (AMD64)] on win32
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set_1 = set(('a', 'b', 'c'))
set_2 = set(('d',))
set_1 | set_2
{'d', 'a', 'c', 'b'}
I was hoping that I could do the same with a dictionary, but it does not
work -
If you know keys are unique or you want keep the second value for a
duplicate (equal) key,
>>> d1 = {1: 'one', 2: 'two'}; d2 = {3: 'three', 1:'One'}
>>> d3 = d1.copy()
>>> d3.update(d2)
>>> d3
{1: 'One', 2: 'two', 3: 'three'}
--
Terry Jan Reedy
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