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...least know that func needs to be callable. But we've dropped too much type information for type checkers to find the bug. With our proposal, the example looks like this: def flat_map( func: (int) -> list[int], l: list[int] ) -> list[int]: out = [] for element in l: out.extend(f(element)) return out ... The type (int) -> list[int] is more concise, uses an arrow similar to the one indicating a return type in a function header, avoids nested brackets, and doe...
...least one listed pattern in all distribution archives. MAY exclude files matched by glob patterns that can be unambiguously determined to be backup, temporary, hidden, OS-generated or VCS-ignored. MUST list each matched file path under a License-File field in the core metadata. SHOULD issue a warning and MAY raise an error if no files are matched. MAY issue a warning if any individual user-specified pattern does not match at least one file. If the license-files key is present, and the paths or ...
...least the set of provided keys, and if all the sub-patterns match their corresponding values. It binds whatever the sub-patterns bind while matching with the values corresponding to the keys. Adding **rest at the end of the pattern to capture extra items is allowed. A class pattern is similar to the above but matches attributes instead of keys. It looks like datetime.date(year=y, day=d). It matches instances of the given type, having at least the specified attributes, as long as the attributes m...