summaryrefslogtreecommitdiff
path: root/sphinx/util/pycompat.py
diff options
context:
space:
mode:
authorTakeshi KOMIYA <i.tkomiya@gmail.com>2020-05-04 02:02:48 +0900
committerTakeshi KOMIYA <i.tkomiya@gmail.com>2020-05-04 02:02:48 +0900
commit1c33824aeabb32657331ec259b07bcaf6971783a (patch)
tree48ba09c2b3295255da03c9ba4c6032f023270fc7 /sphinx/util/pycompat.py
parent75203967d802c1660c45362b5a80b76a4daabd8a (diff)
parentc13ecd243709d1e210a030be5aa09b7714e35730 (diff)
downloadsphinx-git-1c33824aeabb32657331ec259b07bcaf6971783a.tar.gz
Merge branch '3.x'
Diffstat (limited to 'sphinx/util/pycompat.py')
-rw-r--r--sphinx/util/pycompat.py11
1 files changed, 9 insertions, 2 deletions
diff --git a/sphinx/util/pycompat.py b/sphinx/util/pycompat.py
index bcd90a718..7d22a792a 100644
--- a/sphinx/util/pycompat.py
+++ b/sphinx/util/pycompat.py
@@ -23,8 +23,15 @@ def convert_with_2to3(filepath: str) -> str:
warnings.warn('convert_with_2to3() is deprecated',
RemovedInSphinx60Warning, stacklevel=2)
- from lib2to3.refactor import RefactoringTool, get_fixers_from_package
- from lib2to3.pgen2.parse import ParseError
+ try:
+ from lib2to3.refactor import RefactoringTool, get_fixers_from_package
+ from lib2to3.pgen2.parse import ParseError
+ except ImportError:
+ # python 3.9.0a6+ emits PendingDeprecationWarning for lib2to3.
+ # Additionally, removal of the module is still discussed at PEP-594.
+ # To support future python, this catches ImportError for lib2to3.
+ raise SyntaxError
+
fixers = get_fixers_from_package('lib2to3.fixes')
refactoring_tool = RefactoringTool(fixers)
source = refactoring_tool._read_python_source(filepath)[0]