PYTHONCOERCECLOCALE), and locale coercion is either disabled orįails. Locale is identified as a legacy ASCII-based locale (as described for Interpreter defaults to using the current locale settings, unless the current If the PYTHONUTF8 environment variable is not set at all, then the Option and the PYTHONUTF8 environment variable. It can be enabled or disabled using the -X utf8 command line The Python UTF-8 Mode is enabled if the LC_CTYPE locale isĬ or POSIX at Python startup (see the P圜onfig_Read() To raise an exception rather than producing nonsense data. However, they still use the strict error handler byĭefault so that attempting to open a binary file in text mode is likely Open(), io.open(), and codecs.open() use the UTF-8Įncoding by default.

Os.fsdecode() and os.fsencode() use the UTF-8 encoding. Level APIs also exhibit different default behaviours:Ĭommand line arguments, environment variables and filenames are decoded PYTHONIOENCODING (just as they can be in the default locale-awareĪs a consequence of the changes in those lower level APIs, other higher Note that the standard stream settings in UTF-8 mode can be overridden by

On Unix, os.device_encoding() returns 'UTF-8'. UTF-8 as their text encoding, with the surrogateescape error handler being enabled for sys.stdinĪnd sys.stdout ( sys.stderr continues to useīackslashreplace as it does in the default locale-aware mode) Sys.stdin, sys.stdout, and sys.stderr all use Locale.getpreferredencoding() returns 'UTF-8' (the do_setlocale Sys.getfilesystemencoding() returns 'UTF-8'. The Python UTF-8 Mode ignores the locale encoding and forces the usage New in version 3.7: See PEP 540 for more details. On VxWorks, os.popen, os.fork, os.execv and os.spawn*p* are not supported. Objects, and result in an object of the same type, if a path or file name is Through the os module, but using them is of course a threat toĪll functions accepting path or file names accept both bytes and string Information about path in the same format (which happens to have originatedĮxtensions peculiar to a particular operating system are also available Interface for example, the function os.stat(path) returns stat Such that as long as the same functionality is available, it uses the same The design of all built-in operating system dependent modules of Python is Notes on the availability of these functions: Module, and for high-level file and directory handling see the shutil For creating temporary files and directories see the tempfile Read all the lines in all the files on the command line see the fileinput You want to manipulate paths, see the os.path module, and if you want to If you just want to read or write a file see open(), if

This module provides a portable way of using operating system dependentįunctionality. Os - Miscellaneous operating system interfaces ¶

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