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bpo-40807: Show warnings once from codeop._maybe_compile (#20486)

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* bpo-40807: Show warnings once from codeop._maybe_compile

* Move catch_warnings

* news

Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
This commit is contained in:
Cheryl Sabella 2020-06-04 19:40:24 -04:00 • committed by GitHub
parent 3744ed2c9c
commit 052d3fc090
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GPG key ID: 4AEE18F83AFDEB23
3 changed files with 19 additions and 8 deletions
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20
Lib/codeop.py
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@ -57,6 +57,7 @@ Compile():
"""
import __future__
import warnings
_features = [getattr(__future__, fname)
for fname in __future__.all_feature_names]
@ -83,15 +84,18 @@ def _maybe_compile(compiler, source, filename, symbol):
except SyntaxError:
pass
try:
code1 = compiler(source + "\n", filename, symbol)
except SyntaxError as e:
err1 = e
# Suppress warnings after the first compile to avoid duplication.
with warnings.catch_warnings():
warnings.simplefilter("ignore")
try:
code1 = compiler(source + "\n", filename, symbol)
except SyntaxError as e:
err1 = e
try:
code2 = compiler(source + "\n\n", filename, symbol)
except SyntaxError as e:
err2 = e
try:
code2 = compiler(source + "\n\n", filename, symbol)
except SyntaxError as e:
err2 = e
try:
if code: