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37d21c0d54
## Summary Check that the sequence type is a list, set, dict, or tuple before recommending replacing the `enumerate(...)` call with `range(len(...))`. Document behaviour so users are aware of the type inference limitation leading to false negatives. Closes #7656.
100 lines
1.9 KiB
Python
100 lines
1.9 KiB
Python
books = ["Dune", "Foundation", "Neuromancer"]
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books_and_authors = {
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"Dune": "Frank Herbert",
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"Foundation": "Isaac Asimov",
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"Neuromancer": "William Gibson",
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}
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books_set = {"Dune", "Foundation", "Neuromancer"}
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books_tuple = ("Dune", "Foundation", "Neuromancer")
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# Errors
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for index, _ in enumerate(books):
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print(index)
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for index, _ in enumerate(books, start=0):
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print(index)
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for index, _ in enumerate(books, 0):
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print(index)
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for index, _ in enumerate(books, start=1):
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print(index)
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for index, _ in enumerate(books, 1):
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print(index)
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for index, _ in enumerate(books, start=x):
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print(book)
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for index, _ in enumerate(books, x):
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print(book)
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for _, book in enumerate(books):
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print(book)
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for _, book in enumerate(books, start=0):
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print(book)
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for _, book in enumerate(books, 0):
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print(book)
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for _, book in enumerate(books, start=1):
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print(book)
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for _, book in enumerate(books, 1):
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print(book)
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for _, book in enumerate(books, start=x):
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print(book)
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for _, book in enumerate(books, x):
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print(book)
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for index, (_, _) in enumerate(books):
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print(index)
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for (_, _), book in enumerate(books):
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print(book)
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for(index, _)in enumerate(books):
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print(index)
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for(index), _ in enumerate(books):
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print(index)
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for index, _ in enumerate(books_and_authors):
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print(index)
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for _, book in enumerate(books_and_authors):
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print(book)
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for index, _ in enumerate(books_set):
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print(index)
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for _, book in enumerate(books_set):
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print(book)
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for index, _ in enumerate(books_tuple):
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print(index)
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for _, book in enumerate(books_tuple):
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print(book)
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# OK
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for index, book in enumerate(books):
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print(index, book)
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for index in range(len(books)):
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print(index)
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for book in books:
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print(book)
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# Generators don't support the len() function.
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# https://github.com/astral-sh/ruff/issues/7656
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a = (b for b in range(1, 100))
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for i, _ in enumerate(a):
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print(i)
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