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Code Issues Projects Releases Packages Wiki Activity Actions 20

bpo-45292: [PEP-654] add except* (GH-29581)

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Irit Katriel 2021-12-14 16:48:15 +00:00 • committed by GitHub
parent 850aefc2c6
commit d60457a667
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GPG key ID: 4AEE18F83AFDEB23
34 changed files with 7070 additions and 3332 deletions
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21
Lib/ast.py
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@ -683,6 +683,7 @@ class _Unparser(NodeVisitor):
self._type_ignores = {}
self._indent = 0
self._avoid_backslashes = _avoid_backslashes
self._in_try_star = False
def interleave(self, inter, f, seq):
"""Call f on each item in seq, calling inter() in between."""
@ -953,7 +954,7 @@ class _Unparser(NodeVisitor):
self.write(" from ")
self.traverse(node.cause)
def visit_Try(self, node):
def do_visit_try(self, node):
self.fill("try")
with self.block():
self.traverse(node.body)
@ -968,8 +969,24 @@ class _Unparser(NodeVisitor):
with self.block():
self.traverse(node.finalbody)
def visit_Try(self, node):
prev_in_try_star = self._in_try_star
try:
self._in_try_star = False
self.do_visit_try(node)
finally:
self._in_try_star = prev_in_try_star
def visit_TryStar(self, node):
prev_in_try_star = self._in_try_star
try:
self._in_try_star = True
self.do_visit_try(node)
finally:
self._in_try_star = prev_in_try_star
def visit_ExceptHandler(self, node):
self.fill("except")
self.fill("except*" if self._in_try_star else "except")
if node.type:
self.write(" ")
self.traverse(node.type)