New submission from Claudiu.Popa:
Here's a strange bug. I don't know if this is legitimate or not, but it seems
like there is some sort of overflow.
Given the following code:
data = """
def function(*, foot):
print(foot)
"""
from ast import parse
import tracemalloc
tracemalloc.start()
node = parse(data)
tracemalloc.stop()
arg = node.body[0].args.kwonlyargs[0]
print(arg.lineno, arg.col_offset)
it yields on a freshly build the following, which is obviously wrong. It should
have printed `1 1`.
<_ast.arg object at 0x80103bcf8>
1681660160 -2124152704
Also, there is no need to call tracemalloc.start, it has the same behaviour
just by importing it.
----------
components: Library (Lib)
messages: 211165
nosy: Claudiu.Popa
priority: normal
severity: normal
status: open
title: tracemalloc changes col_offset attribute for _ast.arg objects
type: behavior
versions: Python 3.4
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue20619>
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