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gh-102114: Make dis print more concise tracebacks for syntax errors in str inputs (#102115)

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chgnrdv 2023-04-15 08:53:31 +03:00 • committed by GitHub
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commit 2b6f5c3483
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3 changed files with 11 additions and 3 deletions
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6
Lib/dis.py
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@ -64,10 +64,10 @@ def _try_compile(source, name):
expect code objects expect code objects
""" """
try: try:
c = compile(source, name, 'eval') return compile(source, name, 'eval')
except SyntaxError: except SyntaxError:
c = compile(source, name, 'exec') pass
return c return compile(source, name, 'exec')
def dis(x=None, *, file=None, depth=None, show_caches=False, adaptive=False): def dis(x=None, *, file=None, depth=None, show_caches=False, adaptive=False):
"""Disassemble classes, methods, functions, and other compiled objects. """Disassemble classes, methods, functions, and other compiled objects.

7
Lib/test/test_dis.py
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@ -1067,6 +1067,13 @@ class DisTests(DisTestBase):
check(dis_nested_2, depth=None) check(dis_nested_2, depth=None)
check(dis_nested_2) check(dis_nested_2)
def test__try_compile_no_context_exc_on_error(self):
# see gh-102114
try:
dis._try_compile(")", "")
except Exception as e:
self.assertIsNone(e.__context__)
@staticmethod @staticmethod
def code_quicken(f, times=ADAPTIVE_WARMUP_DELAY): def code_quicken(f, times=ADAPTIVE_WARMUP_DELAY):
for _ in range(times): for _ in range(times):

1
Misc/NEWS.d/next/Library/2023-02-21-14-57-34.gh-issue-102114.uUDQzb.rst Normal file
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@ -0,0 +1 @@
Functions in the :mod:`dis` module that accept a source code string as argument now print a more concise traceback when the string contains a syntax or indentation error.