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

[Miss Islington (bot)]

https://github.com/python/cpython/commit/e5b47ea5859522f81599a82d49175f6fad263482
commit: e5b47ea5859522f81599a82d49175f6fad263482
branch: 3.7
author: Miss Islington (bot) <31488909+miss-islington at users.noreply.github.com>
committer: GitHub <noreply at github.com>
date: 2018-07-07T13:39:03-07:00
summary:

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

(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 f2e0fdbc5bf3..98649de7310f 100644
--- a/Doc/library/io.rst
+++ b/Doc/library/io.rst
@@ -799,7 +799,7 @@ Text I/O
 
       .. versionadded:: 3.1
 
-   .. method:: read(size)
+   .. method:: read(size=-1)
 
       Read and return at most *size* characters from the stream as a single
       :class:`str`.  If *size* is negative or ``None``, reads until EOF.