[Python-checkins] [3.7] bpo-38294: Add list of no-longer-escaped chars to re.escape documentation. (GH-16442) (GH-16647)

Tue Oct 8 12:41:05 EDT 2019

https://github.com/python/cpython/commit/43f5c0c4d0a608c04c3978adb45117f3943203b7
commit: 43f5c0c4d0a608c04c3978adb45117f3943203b7
branch: 3.7
author: Ricardo Bánffy <rbanffy at gmail.com>
committer: Serhiy Storchaka <storchaka at gmail.com>
date: 2019年10月08日T19:41:00+03:00
summary:
[3.7] bpo-38294: Add list of no-longer-escaped chars to re.escape documentation. (GH-16442) (GH-16647)
Prior to 3.7, re.escape escaped many characters that don't have
special meaning in Python, but that use to require escaping in other
tools and languages. This commit aims to make it clear which characters
were, but are no longer escaped.
(cherry picked from commit 15ae75d660befe643ed42eb2707a557cea97256c)
files:
A Misc/NEWS.d/next/Documentation/2019-09-27-23-37-41.bpo-38294.go_jFf.rst
M Doc/library/re.rst
M Doc/tools/susp-ignored.csv

diff --git a/Doc/library/re.rst b/Doc/library/re.rst
index a23e45f2eb52f..4245c2417fee6 100644
--- a/Doc/library/re.rst
+++ b/Doc/library/re.rst
@@ -925,8 +925,8 @@ form.
 This is useful if you want to match an arbitrary literal string that may
 have regular expression metacharacters in it. For example::
 
- >>> print(re.escape('python.exe'))
- python\.exe
+ >>> print(re.escape('http://www.python.org'))
+ http://www\.python\.org
 
 >>> legal_chars = string.ascii_lowercase + string.digits + "!#$%&'*+-.^_`|~:"
 >>> print('[%s]+' % re.escape(legal_chars))
@@ -949,7 +949,9 @@ form.
 
 .. versionchanged:: 3.7
 Only characters that can have special meaning in a regular expression
- are escaped.
+ are escaped. As a result, ``'!'``, ``'"'``, ``'%'``, ``"'"``, ``','``,
+ ``'/'``, ``':'``, ``';'``, ``'<'``, ``'='``, ``'>'``, ``'@'``, and
+ ``"`"`` are no longer escaped.
 
 
 .. function:: purge()
diff --git a/Doc/tools/susp-ignored.csv b/Doc/tools/susp-ignored.csv
index 35dfce2c5c80e..36d93a45b0209 100644
--- a/Doc/tools/susp-ignored.csv
+++ b/Doc/tools/susp-ignored.csv
@@ -354,3 +354,4 @@ whatsnew/3.7,,::,error::BytesWarning
 whatsnew/changelog,,::,error::BytesWarning
 whatsnew/changelog,,::,default::BytesWarning
 whatsnew/changelog,,::,default::DeprecationWarning
+library/re,,`,"`"
diff --git a/Misc/NEWS.d/next/Documentation/2019-09-27-23-37-41.bpo-38294.go_jFf.rst b/Misc/NEWS.d/next/Documentation/2019-09-27-23-37-41.bpo-38294.go_jFf.rst
new file mode 100644
index 0000000000000..0bde8c868c9ec
--- /dev/null
+++ b/Misc/NEWS.d/next/Documentation/2019-09-27-23-37-41.bpo-38294.go_jFf.rst
@@ -0,0 +1 @@
+Add list of no-longer-escaped chars to re.escape documentation
\ No newline at end of file
