diff options
Diffstat (limited to 'Doc/library/os.rst')
| -rw-r--r-- | Doc/library/os.rst | 30 |
1 files changed, 14 insertions, 16 deletions
diff --git a/Doc/library/os.rst b/Doc/library/os.rst index 9bed1ce..aa95d1d 100644 --- a/Doc/library/os.rst +++ b/Doc/library/os.rst @@ -204,18 +204,17 @@ process and user. Return the current process's user id. Availability: Unix. -.. function:: getenv(varname[, value]) +.. function:: getenv(key, default=None) - Return the value of the environment variable *varname* if it exists, or *value* - if it doesn't. *value* defaults to ``None``. Availability: most flavors of - Unix, Windows. + Return the value of the environment variable *key* if it exists, or + *default* if it doesn't. Availability: most flavors of Unix, Windows. -.. function:: putenv(varname, value) +.. function:: putenv(key, value) .. index:: single: environment variables; setting - Set the environment variable named *varname* to the string *value*. Such + Set the environment variable named *key* to the string *value*. Such changes to the environment affect subprocesses started with :func:`os.system`, :func:`popen` or :func:`fork` and :func:`execv`. Availability: most flavors of Unix, Windows. @@ -326,11 +325,11 @@ process and user. Unix. -.. function:: unsetenv(varname) +.. function:: unsetenv(key) .. index:: single: environment variables; deleting - Unset (delete) the environment variable named *varname*. Such changes to the + Unset (delete) the environment variable named *key*. Such changes to the environment affect subprocesses started with :func:`os.system`, :func:`popen` or :func:`fork` and :func:`execv`. Availability: most flavors of Unix, Windows. @@ -847,15 +846,14 @@ Files and Directories doesn't open the FIFO --- it just creates the rendezvous point. -.. function:: mknod(filename[, mode=0o600, device]) +.. function:: mknod(filename[, mode=0o600[, device]]) Create a filesystem node (file, device special file or named pipe) named - *filename*. *mode* specifies both the permissions to use and the type of node to - be created, being combined (bitwise OR) with one of ``stat.S_IFREG``, - ``stat.S_IFCHR``, ``stat.S_IFBLK``, - and ``stat.S_IFIFO`` (those constants are available in :mod:`stat`). - For ``stat.S_IFCHR`` and - ``stat.S_IFBLK``, *device* defines the newly created device special file (probably using + *filename*. *mode* specifies both the permissions to use and the type of node + to be created, being combined (bitwise OR) with one of ``stat.S_IFREG``, + ``stat.S_IFCHR``, ``stat.S_IFBLK``, and ``stat.S_IFIFO`` (those constants are + available in :mod:`stat`). For ``stat.S_IFCHR`` and ``stat.S_IFBLK``, + *device* defines the newly created device special file (probably using :func:`os.makedev`), otherwise it is ignored. @@ -1123,7 +1121,7 @@ Files and Directories Availability: Unix, Windows. -.. function:: walk(top[, topdown=True [, onerror=None[, followlinks=False]]]) +.. function:: walk(top, topdown=True, onerror=None, followlinks=False) .. index:: single: directory; walking |