Clarification to avoid confusing output with file descriptors.
diff --git a/Doc/library/subprocess.rst b/Doc/library/subprocess.rst
index 468892a..ae2f73b 100644
--- a/Doc/library/subprocess.rst
+++ b/Doc/library/subprocess.rst
@@ -231,7 +231,7 @@
*input* argument should be a string to be sent to the child process, or
``None``, if no data should be sent to the child.
- :meth:`communicate` returns a tuple ``(stdout, stderr)``.
+ :meth:`communicate` returns a tuple ``(stdoutdata, stderrdata)``.
Note that if you want to send data to the process's stdin, you need to create
the Popen object with ``stdin=PIPE``. Similarly, to get anything other than