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authorSerhiy Storchaka <storchaka@gmail.com>2016-06-11 16:15:00 (GMT)
committerSerhiy Storchaka <storchaka@gmail.com>2016-06-11 16:15:00 (GMT)
commit9bd85b83f66d31e39282244e455275bd9cd91bb1 (patch)
treef66a844daa9f876509c1bc53cbeee2da15a09eb7 /Doc/library/re.rst
parentd35bf032840bcbf130a146eb35e332f9fa925cd9 (diff)
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Issue #27030: Unknown escapes consisting of ``'\'`` and ASCII letter in
regular expressions now are errors.
Diffstat (limited to 'Doc/library/re.rst')
-rw-r--r--Doc/library/re.rst23
1 files changed, 11 insertions, 12 deletions
diff --git a/Doc/library/re.rst b/Doc/library/re.rst
index ceb7959..52d2ec0 100644
--- a/Doc/library/re.rst
+++ b/Doc/library/re.rst
@@ -317,8 +317,9 @@ The special characters are:
The special sequences consist of ``'\'`` and a character from the list below.
-If the ordinary character is not on the list, then the resulting RE will match
-the second character. For example, ``\$`` matches the character ``'$'``.
+If the ordinary character is not ASCII digit or ASCII letter, then the
+resulting RE will match the second character. For example, ``\$`` matches the
+character ``'$'``.
``\number``
Matches the contents of the group of the same number. Groups are numbered
@@ -438,9 +439,8 @@ three digits in length.
.. versionchanged:: 3.3
The ``'\u'`` and ``'\U'`` escape sequences have been added.
-.. deprecated-removed:: 3.5 3.6
- Unknown escapes consist of ``'\'`` and ASCII letter now raise a
- deprecation warning and will be forbidden in Python 3.6.
+.. versionchanged:: 3.6
+ Unknown escapes consisting of ``'\'`` and ASCII letter now are errors.
.. seealso::
@@ -528,11 +528,11 @@ form.
current locale. The use of this flag is discouraged as the locale mechanism
is very unreliable, and it only handles one "culture" at a time anyway;
you should use Unicode matching instead, which is the default in Python 3
- for Unicode (str) patterns. This flag makes sense only with bytes patterns.
+ for Unicode (str) patterns. This flag can be used only with bytes patterns.
- .. deprecated-removed:: 3.5 3.6
- Deprecated the use of :const:`re.LOCALE` with string patterns or
- :const:`re.ASCII`.
+ .. versionchanged:: 3.6
+ :const:`re.LOCALE` can be used only with bytes patterns and is
+ not compatible with :const:`re.ASCII`.
.. data:: M
@@ -738,9 +738,8 @@ form.
.. versionchanged:: 3.5
Unmatched groups are replaced with an empty string.
- .. deprecated-removed:: 3.5 3.6
- Unknown escapes consist of ``'\'`` and ASCII letter now raise a
- deprecation warning and will be forbidden in Python 3.6.
+ .. versionchanged:: 3.6
+ Unknown escapes consisting of ``'\'`` and ASCII letter now are errors.
.. function:: subn(pattern, repl, string, count=0, flags=0)