检查在Python中打开了哪些文件

检查在Python中打开了哪些文件

我最终在程序的入口点包装了内置文件对象。我发现我没有关闭记录仪。

import ioimport sysimport builtinsimport tracebackfrom functools import wrapsdef opener(old_open):    @wraps(old_open)    def tracking_open(*args, **kw):        file = old_open(*args, **kw)        old_close = file.close        @wraps(old_close)        def close(): old_close() open_files.remove(file)        file.close = close        file.stack = traceback.extract_stack()        open_files.add(file)        return file    return tracking_opendef print_open_files():    print(f'### {len(open_files)} OPEN FILES: [{", ".join(f.name for f in open_files)}]', file=sys.stderr)    for file in open_files:        print(f'Open file {file.name}:n{"".join(traceback.format_list(file.stack))}', file=sys.stderr)open_files = set()io.open = opener(io.open)builtins.open = opener(builtins.open)