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Issue #26870: Temporary debugging for OS X Snow Leopard lockup

This commit is contained in:
Martin Panter 2016-05-15 03:59:59 +00:00
parent 3712686956
commit 3e2a0715d7
1 changed files with 6 additions and 1 deletions
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7
Lib/test/test_readline.py
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@ -9,7 +9,7 @@ import subprocess
import sys
import tempfile
import unittest
from test.support import import_module, unlink
from test.support import import_module, unlink, get_original_stdout
from test.support.script_helper import assert_python_ok
# Skip tests if there is no readline module
@ -131,20 +131,25 @@ def run_pty(script, input=b"dummy input\r"):
sel.register(master, selectors.EVENT_READ | selectors.EVENT_WRITE)
os.set_blocking(master, False)
while True:
get_original_stdout().write(f"test_readline: select()\n")
for [_, events] in sel.select():
if events & selectors.EVENT_READ:
try:
get_original_stdout().write(f"test_readline: read()\n")
chunk = os.read(master, 0x10000)
except OSError as err:
# Linux raises EIO when the slave is closed
if err.errno != EIO:
raise
chunk = b""
get_original_stdout().write(f"test_readline: read {chunk!r}\n")
if not chunk:
return output
output.extend(chunk)
if events & selectors.EVENT_WRITE:
get_original_stdout().write(f"test_readline: write()\n")
input = input[os.write(master, input):]
get_original_stdout().write(f"test_readline: remaining input = {input!r}\n")
if not input:
sel.modify(master, selectors.EVENT_READ)