# HG changeset patch
# Parent 1cdedc9a9e9ff2f71f3e192fb8feaa8ba9f55c02

diff -r 1cdedc9a9e9f Doc/library/subprocess.rst
--- a/Doc/library/subprocess.rst	Tue Jun 09 14:24:30 2015 -0400
+++ b/Doc/library/subprocess.rst	Wed Jun 10 04:01:37 2015 +0000
@@ -825,7 +825,7 @@
 .. function:: call(args, *, stdin=None, stdout=None, stderr=None, shell=False, timeout=None)
 
    Run the command described by *args*.  Wait for command to complete, then
-   return the :attr:`returncode` attribute.
+   return the :attr:`~Popen.returncode` attribute.
 
    This is equivalent to::
 
@@ -833,6 +833,11 @@
 
    (except that the *input* and *check* parameters are not supported)
 
+   The arguments shown above are merely the most
+   common ones. The full function signature is largely the
+   same as that of the :class:`Popen` constructor - this function passes all
+   supplied arguments other than *timeout* directly through to that interface.
+
    .. note::
 
       Do not use ``stdout=PIPE`` or ``stderr=PIPE`` with this
@@ -856,6 +861,11 @@
 
    (except that the *input* parameter is not supported)
 
+   The arguments shown above are merely the most
+   common ones. The full function signature is largely the
+   same as that of the :class:`Popen` constructor - this function passes all
+   supplied arguments other than *timeout* directly through to that interface.
+
    .. note::
 
       Do not use ``stdout=PIPE`` or ``stderr=PIPE`` with this
@@ -867,7 +877,7 @@
       *timeout* was added.
 
 
-.. function:: check_output(args, *, input=None, stdin=None, stderr=None, shell=False, universal_newlines=False, timeout=None)
+.. function:: check_output(args, *[, input], stdin=None, stderr=None, shell=False, universal_newlines=False, timeout=None)
 
    Run command with arguments and return its output.
 
@@ -880,6 +890,13 @@
 
        run(..., check=True, stdout=PIPE).stdout
 
+   The arguments shown above are merely the most common ones.
+   The full function signature is largely the same as that of :func:`run` -
+   most arguments are passed directly through to that interface.
+   The differences are that explicitly passing ``input=None`` is not
+   supported, and that *stdout* is not permitted as an argument, as
+   it is used internally to collect the output from the subprocess.
+
    By default, this function will return the data as encoded bytes. The actual
    encoding of the output data may depend on the command being invoked, so the
    decoding to text will often need to be handled at the application level.