[Python-checkins] [2.7] bpo-33804: Document that the argument for io.TextIOBase.read() is optional (GH-7510). (GH-8171)

[Serhiy Storchaka]

https://github.com/python/cpython/commit/ad0fc8ddba0e2f6715dc14c74cb4dbd437b3777d
commit: ad0fc8ddba0e2f6715dc14c74cb4dbd437b3777d
branch: 2.7
author: Andrés Delfino <adelfino at gmail.com>
committer: Serhiy Storchaka <storchaka at gmail.com>
date: 2018-07-08T00:10:18+03:00
summary:

[2.7] bpo-33804: Document that the argument for io.TextIOBase.read() is optional (GH-7510). (GH-8171)

(cherry picked from commit b6bb77c2b8e83ba6cb845c7b512ac564276e854f)

Co-authored-by: Andrés Delfino <adelfino at gmail.com>

files:
M Doc/library/io.rst

diff --git a/Doc/library/io.rst b/Doc/library/io.rst
index 300041dc3bb1..dcdd01cd0aa5 100644
--- a/Doc/library/io.rst
+++ b/Doc/library/io.rst
@@ -724,7 +724,7 @@ Text I/O
 
       .. versionadded:: 2.7
 
-   .. method:: read(n)
+   .. method:: read(n=-1)
 
       Read and return at most *n* characters from the stream as a single
       :class:`unicode`.  If *n* is negative or ``None``, reads until EOF.