List comprehension

Jason Friedman jsf80238 at gmail.com
Fri Dec 30 14:37:46 EST 2016

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$ python
Python 3.6.0 (default, Dec 26 2016, 18:23:08)
[GCC 4.8.4] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> data = (
... (1,2),
... (3,4),
... )
>>> [a for a in data]
[(1, 2), (3, 4)]
Now, this puzzles me:
>>> [x,y for a in data]
 File "<stdin>", line 1
 [x,y for a in data]
 ^
SyntaxError: invalid syntax
I expected:
[(1, 2), (3, 4)]

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