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Merge pull request #4261 from asottile/no_anonymous_source_warning 

Swallow warnings during anonymous compilation of source
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Anthony Sottile 2018-10-29 18:29:53 -07:00 committed by GitHub
parent e6e40db9c7 0d1f142b1c
commit f258b75a24
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 9 additions and 5 deletions
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1
changelog/4260.bugfix.rst Normal file
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@ -0,0 +1 @@
Swallow warnings during anonymous compilation of source.

13
src/_pytest/_code/source.py
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@ -8,14 +8,13 @@ import linecache
import sys import sys
import textwrap import textwrap
import tokenize import tokenize
import warnings
from ast import PyCF_ONLY_AST as _AST_FLAG from ast import PyCF_ONLY_AST as _AST_FLAG
from bisect import bisect_right from bisect import bisect_right
import py import py
import six import six
cpy_compile = compile
class Source(object): class Source(object):
""" an immutable object holding a source code fragment, """ an immutable object holding a source code fragment,
@ -161,7 +160,7 @@ class Source(object):
filename = base + "%r %s:%d>" % (filename, fn, lineno) filename = base + "%r %s:%d>" % (filename, fn, lineno)
source = "\n".join(self.lines) + "\n" source = "\n".join(self.lines) + "\n"
try: try:
co = cpy_compile(source, filename, mode, flag) co = compile(source, filename, mode, flag)
except SyntaxError: except SyntaxError:
ex = sys.exc_info()[1] ex = sys.exc_info()[1]
# re-represent syntax errors from parsing python strings # re-represent syntax errors from parsing python strings
@ -195,7 +194,7 @@ def compile_(source, filename=None, mode="exec", flags=0, dont_inherit=0):
""" """
if isinstance(source, ast.AST): if isinstance(source, ast.AST):
# XXX should Source support having AST? # XXX should Source support having AST?
return cpy_compile(source, filename, mode, flags, dont_inherit) return compile(source, filename, mode, flags, dont_inherit)
_genframe = sys._getframe(1) # the caller _genframe = sys._getframe(1) # the caller
s = Source(source) s = Source(source)
co = s.compile(filename, mode, flags, _genframe=_genframe) co = s.compile(filename, mode, flags, _genframe=_genframe)
@ -290,7 +289,11 @@ def get_statement_startend2(lineno, node):
def getstatementrange_ast(lineno, source, assertion=False, astnode=None): def getstatementrange_ast(lineno, source, assertion=False, astnode=None):
if astnode is None: if astnode is None:
content = str(source) content = str(source)
astnode = compile(content, "source", "exec", 1024) # 1024 for AST # See #4260:
# don't produce duplicate warnings when compiling source to find ast
with warnings.catch_warnings():
warnings.simplefilter("ignore")
astnode = compile(content, "source", "exec", _AST_FLAG)
start, end = get_statement_startend2(lineno, astnode) start, end = get_statement_startend2(lineno, astnode)
# we need to correct the end: # we need to correct the end: