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Diffstat (limited to 'Doc/library/os.rst')
| -rw-r--r-- | Doc/library/os.rst | 159 |
1 files changed, 75 insertions, 84 deletions
diff --git a/Doc/library/os.rst b/Doc/library/os.rst index 4251113..e185e47 100644 --- a/Doc/library/os.rst +++ b/Doc/library/os.rst @@ -1422,20 +1422,6 @@ features: and the *dir_fd* and *follow_symlinks* arguments. -.. function:: getxattr(path, attribute, *, follow_symlinks=True) - - Return the value of the extended filesystem attribute *attribute* for - *path*. *attribute* can be bytes or str. If it is str, it is encoded - with the filesystem encoding. - - This function can support :ref:`specifying a file descriptor <path_fd>` and - :ref:`not following symlinks <follow_symlinks>`. - - Availability: Linux. - - .. versionadded:: 3.3 - - .. function:: lchflags(path, flags) Set the flags of *path* to the numeric *flags*, like :func:`chflags`, but do @@ -1511,21 +1497,6 @@ features: Added support for specifying an open file descriptor for *path*. -.. function:: listxattr(path=None, *, follow_symlinks=True) - - Return a list of the extended filesystem attributes on *path*. The - attributes in the list are represented as strings decoded with the filesystem - encoding. If *path* is ``None``, :func:`listxattr` will examine the current - directory. - - This function can support :ref:`specifying a file descriptor <path_fd>` and - :ref:`not following symlinks <follow_symlinks>`. - - Availability: Linux. - - .. versionadded:: 3.3 - - .. function:: lstat(path, *, dir_fd=None) Perform the equivalent of an :c:func:`lstat` system call on the given path. @@ -1726,20 +1697,6 @@ features: successfully removed. -.. function:: removexattr(path, attribute, *, follow_symlinks=True) - - Removes the extended filesystem attribute *attribute* from *path*. - *attribute* should be bytes or str. If it is a string, it is encoded - with the filesystem encoding. - - This function can support :ref:`specifying a file descriptor <path_fd>` and - :ref:`not following symlinks <follow_symlinks>`. - - Availability: Linux. - - .. versionadded:: 3.3 - - .. function:: rename(src, dst, *, src_dir_fd=None, dst_dir_fd=None) Rename the file or directory *src* to *dst*. If *dst* is a directory, @@ -1817,47 +1774,6 @@ features: The *dir_fd* parameter. -.. data:: XATTR_SIZE_MAX - - The maximum size the value of an extended attribute can be. Currently, this - is 64 kilobytes on Linux. - - -.. data:: XATTR_CREATE - - This is a possible value for the flags argument in :func:`setxattr`. It - indicates the operation must create an attribute. - - -.. data:: XATTR_REPLACE - - This is a possible value for the flags argument in :func:`setxattr`. It - indicates the operation must replace an existing attribute. - - -.. function:: setxattr(path, attribute, value, flags=0, *, follow_symlinks=True) - - Set the extended filesystem attribute *attribute* on *path* to *value*. - *attribute* must be a bytes or str with no embedded NULs. If it is a str, - it is encoded with the filesystem encoding. *flags* may be - :data:`XATTR_REPLACE` or :data:`XATTR_CREATE`. If :data:`XATTR_REPLACE` is - given and the attribute does not exist, ``EEXISTS`` will be raised. - If :data:`XATTR_CREATE` is given and the attribute already exists, the - attribute will not be created and ``ENODATA`` will be raised. - - This function can support :ref:`specifying a file descriptor <path_fd>` and - :ref:`not following symlinks <follow_symlinks>`. - - Availability: Linux. - - .. note:: - - A bug in Linux kernel versions less than 2.6.39 caused the flags argument - to be ignored on some filesystems. - - .. versionadded:: 3.3 - - .. function:: stat(path, *, dir_fd=None, follow_symlinks=True) Perform the equivalent of a :c:func:`stat` system call on the given path. @@ -2334,6 +2250,81 @@ features: .. versionadded:: 3.3 +Linux extended attributes +~~~~~~~~~~~~~~~~~~~~~~~~~ + +.. versionadded:: 3.3 + +These functions are all available on Linux only. + +.. function:: getxattr(path, attribute, *, follow_symlinks=True) + + Return the value of the extended filesystem attribute *attribute* for + *path*. *attribute* can be bytes or str. If it is str, it is encoded + with the filesystem encoding. + + This function can support :ref:`specifying a file descriptor <path_fd>` and + :ref:`not following symlinks <follow_symlinks>`. + + +.. function:: listxattr(path=None, *, follow_symlinks=True) + + Return a list of the extended filesystem attributes on *path*. The + attributes in the list are represented as strings decoded with the filesystem + encoding. If *path* is ``None``, :func:`listxattr` will examine the current + directory. + + This function can support :ref:`specifying a file descriptor <path_fd>` and + :ref:`not following symlinks <follow_symlinks>`. + + +.. function:: removexattr(path, attribute, *, follow_symlinks=True) + + Removes the extended filesystem attribute *attribute* from *path*. + *attribute* should be bytes or str. If it is a string, it is encoded + with the filesystem encoding. + + This function can support :ref:`specifying a file descriptor <path_fd>` and + :ref:`not following symlinks <follow_symlinks>`. + + +.. function:: setxattr(path, attribute, value, flags=0, *, follow_symlinks=True) + + Set the extended filesystem attribute *attribute* on *path* to *value*. + *attribute* must be a bytes or str with no embedded NULs. If it is a str, + it is encoded with the filesystem encoding. *flags* may be + :data:`XATTR_REPLACE` or :data:`XATTR_CREATE`. If :data:`XATTR_REPLACE` is + given and the attribute does not exist, ``EEXISTS`` will be raised. + If :data:`XATTR_CREATE` is given and the attribute already exists, the + attribute will not be created and ``ENODATA`` will be raised. + + This function can support :ref:`specifying a file descriptor <path_fd>` and + :ref:`not following symlinks <follow_symlinks>`. + + .. note:: + + A bug in Linux kernel versions less than 2.6.39 caused the flags argument + to be ignored on some filesystems. + + +.. data:: XATTR_SIZE_MAX + + The maximum size the value of an extended attribute can be. Currently, this + is 64 kilobytes on Linux. + + +.. data:: XATTR_CREATE + + This is a possible value for the flags argument in :func:`setxattr`. It + indicates the operation must create an attribute. + + +.. data:: XATTR_REPLACE + + This is a possible value for the flags argument in :func:`setxattr`. It + indicates the operation must replace an existing attribute. + + .. _os-process: Process Management |