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refactor: Catch ImportError for lib2to3 to support future python

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This commit is contained in:
Takeshi KOMIYA 2020-05-04 01:47:42 +09:00
parent a5036270c8
commit 3fee5a1ad8
2 changed files with 10 additions and 2 deletions
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1
setup.cfg
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@ -55,6 +55,7 @@ filterwarnings =
all all
ignore::DeprecationWarning:docutils.io ignore::DeprecationWarning:docutils.io
ignore::DeprecationWarning:pyximport.pyximport ignore::DeprecationWarning:pyximport.pyximport
ignore::PendingDeprecationWarning:sphinx.util.pycompat
markers = markers =
sphinx sphinx
apidoc apidoc

7
sphinx/util/pycompat.py
View File

@ -31,8 +31,15 @@ logger = logging.getLogger(__name__)
# convert_with_2to3(): # convert_with_2to3():
# support for running 2to3 over config files # support for running 2to3 over config files
def convert_with_2to3(filepath: str) -> str: def convert_with_2to3(filepath: str) -> str:
try:
from lib2to3.refactor import RefactoringTool, get_fixers_from_package from lib2to3.refactor import RefactoringTool, get_fixers_from_package
from lib2to3.pgen2.parse import ParseError 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') fixers = get_fixers_from_package('lib2to3.fixes')
refactoring_tool = RefactoringTool(fixers) refactoring_tool = RefactoringTool(fixers)
source = refactoring_tool._read_python_source(filepath)[0] source = refactoring_tool._read_python_source(filepath)[0]