This Join Tuples lesson is for a beginner. Read the short notes, run each example, then change one name or number and run it again.
Adding two tuples builds a new tuple. The originals stay as they were.
A one-item tuple needs a trailing comma. Without it, parentheses only group an expression.
Example 1: Start here
(\"Python\") is a string. (\"Python\",) is a tuple.
left = ("Python",) # a tuple; a fixed group of values
right = ("SQL", "Git") # a tuple; a fixed group of values
print(left + right)
Example 2: Add tuples
Plus returns a new tuple. Tuples themselves cannot grow with append.
print(("Python",) + ("SQL", "Git")) # plus joins text; use str() for a number
Example 3: Repeat a tuple
The comma after ha keeps it a one-item tuple.
print(("ha",) * 3) # print writes this; the quotes are not shown
Example 4: Build from a list
tuple() copies the items into a tuple.
print(tuple(["Python", "SQL"])) # print writes this; the quotes are not shown
(\"Python\") is a string. (\"Python\",) is a tuple.
