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| author | Neal Norwitz <nnorwitz@gmail.com> | 2006-09-05 03:53:08 (GMT) |
|---|---|---|
| committer | Neal Norwitz <nnorwitz@gmail.com> | 2006-09-05 03:53:08 (GMT) |
| commit | dac090d3e62cadd24fc6b73ab177bf98326c1849 (patch) | |
| tree | 4b6fa9d21592bdd09ad8204daec1a4bf18c710de /Lib/test/test_grammar.py | |
| parent | 4bc2c0919b2ed31851e9c3423ab85614fe35a75a (diff) | |
| download | cpython-dac090d3e62cadd24fc6b73ab177bf98326c1849.zip cpython-dac090d3e62cadd24fc6b73ab177bf98326c1849.tar.gz cpython-dac090d3e62cadd24fc6b73ab177bf98326c1849.tar.bz2 | |
Bug #1520864 (again): unpacking singleton tuples in list comprehensions and
generator expressions (x for x, in ... ) works again.
Sigh, I only fixed for loops the first time, not list comps and genexprs too.
I couldn't find any more unpacking cases where there is a similar bug lurking.
This code should be refactored to eliminate the duplication. I'm sure
the listcomp/genexpr code can be refactored. I'm not sure if the for loop
can re-use any of the same code though.
Will backport to 2.5 (the only place it matters).
Diffstat (limited to 'Lib/test/test_grammar.py')
| -rw-r--r-- | Lib/test/test_grammar.py | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Lib/test/test_grammar.py b/Lib/test/test_grammar.py index f160867..c39e416 100644 --- a/Lib/test/test_grammar.py +++ b/Lib/test/test_grammar.py @@ -825,6 +825,10 @@ verify([(i,j) for i in range(10) for j in range(5)] == list(g)) verify([ x for x in range(10) if x % 2 if x % 3 ], [1, 5, 7]) verify((x for x in range(10) if x % 2 if x % 3), [1, 5, 7]) +# Verify unpacking single element tuples in listcomp/genexp. +vereq([x for x, in [(4,), (5,), (6,)]], [4, 5, 6]) +vereq(list(x for x, in [(7,), (8,), (9,)]), [7, 8, 9]) + # Test ifelse expressions in various cases def _checkeval(msg, ret): "helper to check that evaluation of expressions is done correctly" |