diff options
Diffstat (limited to 'Doc/library/os.rst')
| -rw-r--r-- | Doc/library/os.rst | 31 |
1 files changed, 17 insertions, 14 deletions
diff --git a/Doc/library/os.rst b/Doc/library/os.rst index 2213740..9bb2fc6 100644 --- a/Doc/library/os.rst +++ b/Doc/library/os.rst @@ -386,9 +386,9 @@ by file descriptors. .. note:: This function is intended for low-level I/O and must be applied to a file - descriptor as returned by :func:`open` or :func:`pipe`. To close a "file + descriptor as returned by :func:`os.open` or :func:`pipe`. To close a "file object" returned by the built-in function :func:`open` or by :func:`popen` or - :func:`fdopen`, use its :meth:`close` method. + :func:`fdopen`, use its :meth:`~file.close` method. .. function:: closerange(fd_low, fd_high) @@ -439,6 +439,9 @@ by file descriptors. Force write of file with filedescriptor *fd* to disk. Does not force update of metadata. Availability: Unix. + .. note:: + This function is not available on MacOS. + .. function:: fpathconf(fd, name) @@ -514,8 +517,8 @@ by file descriptors. .. note:: This function is intended for low-level I/O. For normal usage, use the built-in - function :func:`open`, which returns a "file object" with :meth:`read` and - :meth:`write` methods (and many more). To wrap a file descriptor in a "file + function :func:`open`, which returns a "file object" with :meth:`~file.read` and + :meth:`~file.write` methods (and many more). To wrap a file descriptor in a "file object", use :func:`fdopen`. @@ -544,22 +547,22 @@ by file descriptors. .. note:: This function is intended for low-level I/O and must be applied to a file - descriptor as returned by :func:`open` or :func:`pipe`. To read a "file object" + descriptor as returned by :func:`os.open` or :func:`pipe`. To read a "file object" returned by the built-in function :func:`open` or by :func:`popen` or - :func:`fdopen`, or :data:`sys.stdin`, use its :meth:`read` or :meth:`readline` - methods. + :func:`fdopen`, or :data:`sys.stdin`, use its :meth:`~file.read` or + :meth:`~file.readline` methods. .. function:: tcgetpgrp(fd) Return the process group associated with the terminal given by *fd* (an open - file descriptor as returned by :func:`open`). Availability: Unix. + file descriptor as returned by :func:`os.open`). Availability: Unix. .. function:: tcsetpgrp(fd, pg) Set the process group associated with the terminal given by *fd* (an open file - descriptor as returned by :func:`open`) to *pg*. Availability: Unix. + descriptor as returned by :func:`os.open`) to *pg*. Availability: Unix. .. function:: ttyname(fd) @@ -577,13 +580,13 @@ by file descriptors. .. note:: This function is intended for low-level I/O and must be applied to a file - descriptor as returned by :func:`open` or :func:`pipe`. To write a "file + descriptor as returned by :func:`os.open` or :func:`pipe`. To write a "file object" returned by the built-in function :func:`open` or by :func:`popen` or - :func:`fdopen`, or :data:`sys.stdout` or :data:`sys.stderr`, use its :meth:`write` - method. + :func:`fdopen`, or :data:`sys.stdout` or :data:`sys.stderr`, use its + :meth:`~file.write` method. The following constants are options for the *flags* parameter to the -:func:`open` function. They can be combined using the bitwise OR operator +:func:`~os.open` function. They can be combined using the bitwise OR operator ``|``. Some of them are not available on all platforms. For descriptions of their availability and use, consult the :manpage:`open(2)` manual page on Unix or `the MSDN <http://msdn.microsoft.com/en-us/library/z0kc8e3z.aspx>` on Windows. @@ -660,7 +663,7 @@ Files and Directories .. note:: Using :func:`access` to check if a user is authorized to e.g. open a file before - actually doing so using :func:`open` creates a security hole, because the user + actually doing so using :func:`open` creates a security hole, because the user might exploit the short time interval between checking and opening the file to manipulate it. |