forked from Rust-related/RustPython
48 lines
913 B
Python
48 lines
913 B
Python
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x = [1, 2, 3]
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y = [a*a+1 for a in x]
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assert y == [2, 5, 10]
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z = [(b, c) for b in x for c in y]
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# print(z)
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assert z == [
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(1, 2), (1, 5), (1, 10),
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(2, 2), (2, 5), (2, 10),
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(3, 2), (3, 5), (3, 10)]
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v = {b * 2 for b in x}
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assert v == {2, 6, 4}
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u = {str(b): b-2 for b in x}
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assert u['3'] == 1
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assert u['1'] == -1
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y = [a+2 for a in x if a % 2]
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print(y)
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assert y == [3, 5]
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z = [(9,), (10,)]
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w = [x for x, in z]
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assert w == [9, 10]
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# generator targets shouldn't affect scopes out of comprehensions
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[a for a in range(5)]
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assert 'a' not in locals()
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assert 'a' not in globals()
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[b for a, b in [(1, 1), (2, 2)]]
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assert 'b' not in locals()
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assert 'b' not in globals()
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{b: c for b, c in {1: 2}.items()}
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assert 'b' not in locals()
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assert 'c' not in locals()
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assert 'b' not in globals()
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assert 'c' not in globals()
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def f():
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# Test no panic occurred.
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[[x := 1 for j in range(5)] for i in range(5)]
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