#Director player error handler not found in object code

#Director player error handler not found in object code

Using scandir() instead of listdir() can significantly increase the performance of code that also needs file type or file attribute information, because os.DirEntry objects expose this information if the operating system provides it when scanning a directory. Via : python/cpython - (master) cpython/Modules/posixmodule.c Win: : FindFirstFileW function / : FindNextFileW function / : FindClose function.Nix: : OPENDIR(3) / : READDIR(3) / : CLOSEDIR(3).scandir( path='.') on Python v 3.5+, backport: : scandir) finally usage patterns to be encapsulated for convenient reuse.ДЇilesystem traversal functions (and search the results for matching item(s)) suppress( *exceptions) - which was specifically designed for selectively suppressing exceptionsД«ut, they seem to be wrappers over try / except / else / finally blocks, as : The with statement states: Result = stat.S_ISREG(os.stat(path).st_mode) )ДЄnd its usage - I'll replicate the os.path.isfile behavior (note that this is just for demonstrating purposes, do not attempt to write such code for production): import os TypeError - if the user passes a wrong argument like None or float or. Return exc_type in Swallow.swallowed_exceptions # only swallow FileNotFoundError (not e.g. Print('Exiting:', exc_type, exc_value, exc_traceback) Swallowed_exceptions = (FileNotFoundError,)Дef _exit_(self, exc_type, exc_value, exc_traceback): Either:Д¬reate one: class Swallow: # Dummy example # Path doesn't exist or is a broken symlink Whether this path is a regular file (also True for symlinks pointing Under the hood, it does exactly the same thing ( pathlib.py, line ~#1330): def is_file(self): It's a fancier (and more pythonic) way of handling paths, but.This also applies to other funcs ( including os.path.isfile). So, your code is try / except free, but lower in the framestack there's (at least) one such block. stat( path, *, dir_fd=None, follow_symlinks=True). It's just a try / except block around : os. Returns False for broken symbolic links''' Genericpath.py, line ~#20+ def exists(path): On some platforms, this function may return False if permission is not granted to execute os.stat() on the requested file, even if the path physically exists.ДЄll good, but if following the import tree: Return True if path refers to an existing path or an open file descriptor. exists( path) (also check other function family members like os.path.isfile, os.path.isdir, os.path.lexists for slightly different behaviors) os.path.exists(path) Don't use try / except / else / finally blocks.Check file ( arguable: also folder ('special' file) ?) existence.Note: every piece of Python standard library code that I'm going to post, belongs to version 3.5.3. Python 3.4 specific stuff was added), I'll try to group everything together. My_abs_path = my_file.resolve(strict=True)ДЄlthough almost every possible way has been listed in (at least one of) the existing answers (e.g. You can also use resolve(strict=True) in a try block: try: To check whether a Path object exists independently of whether is it a file or directory, use exists(): if my_file.exists(): To check a directory, do: if my_file.is_dir(): Starting with Python 3.4, the pathlib module offers an object-oriented approach (backported to pathlib2 in Python 2.7): from pathlib import Path This follows symbolic links, so both islink() and isfile() can be true for the same path. Return True if path is an existing regular file. If you're not planning to open the file immediately, you can use os.path.isfile Checking and then opening risks the file being deleted or moved or something between when you check and when you try to open it. If the reason you're checking is so you can do something like if file_exists: open_it(), it's safer to use a try around the attempt to open it.