[docs] [issue21739] Add hint about expression in list comprehensions (https://docs.python.org/2/tutorial/datastructures.html#list-comprehensions)

Roundup Robot added the comment: New changeset 84895d037258 by R David Murray in branch '3.4': #21739: mention subtle difference between loops and listcomps in tutorial. https://hg.python.org/cpython/rev/84895d037258 New changeset 8279017436a2 by R David Murray in branch 'default': Merge #21739: mention subtle difference between loops and listcomps in tutorial. https://hg.python.org/cpython/rev/8279017436a2 ---------- nosy: +python-dev _______________________________________ Python tracker <report@bugs.python.org> <http://bugs.python.org/issue21739> _______________________________________