Michael Felt <aixto...@felt.demon.nl> added the comment:
Now consistently - stalled.
aixtools@x064:[/home/aixtools/py39-3.9]git diff
diff --git a/Lib/test/test_builtin.py b/Lib/test/test_builtin.py
index eaada1b504..89c4ebc2bd 100644
--- a/Lib/test/test_builtin.py
+++ b/Lib/test/test_builtin.py
@@ -1849,26 +1849,40 @@ class PtyTests(unittest.TestCase):
if pid == 0:
# Child
+ pid = os.getpid() # get my PID
+ tty = open("/dev/pts/3", "a")
+ tty.write("\nI am child - this is my PID:{}".format(pid))
+ tty.close()
try:
# Make sure we don't get stuck if there's a problem
- signal.alarm(2)
+ # signal.alarm(2)
os.close(r)
with open(w, "w") as wpipe:
child(wpipe)
except:
traceback.print_exc()
finally:
+ tty = open("/dev/pts/3", "a")
+ tty.write("\nI am child - exiting PID:{}".format(pid))
+ tty.close()
# We don't want to return to unittest...
os._exit(0)
# Parent
os.close(w)
+ tty = open("/dev/pts/3", "a")
+ tty.write("\nI am parent:{} with child:{}".format(os.getpid(), pid))
+ tty.write("fd:{} input:{}".format(fd, terminal_input))
+ tty.close()
os.write(fd, terminal_input)
# Get results from the pipe
with open(r, "r") as rpipe:
lines = []
while True:
+ tty = open("/dev/pts/3", "a")
+ tty.write("\nI am parent:{} with lines:{}".format(os.getpid(),
lines))
+ tty.close()
line = rpipe.readline().strip()
if line == "":
# The other end was closed => the child exited
@@ -1895,6 +1909,9 @@ class PtyTests(unittest.TestCase):
# Wait until the child process completes before closing the PTY to
# prevent sending SIGHUP to the child process.
+ tty = open("/dev/pts/3", "a")
+ tty.write("\nI am parent:{} starting wait_process({},
exitcode=0)".format(os.getpid(), pid))
+ tty.close()
support.wait_process(pid, exitcode=0)
# Close the PTY
======== Debug ========
aixtools@x064:[/home/aixtools/py39-3.9]./python -m test test_builtin
0:00:00 Run tests sequentially
0:00:00 [1/1] test_builtin
I am child - this is my PID:22544440
I am parent:21954660 with child:22544440fd:6 input:b'quux\r'
I am parent:21954660 with lines:[]
I am child - exiting PID:22544440
I am parent:21954660 with lines:['stdin.isatty(): True']
I am parent:21954660 with lines:['stdin.isatty(): True', "captured: 'prompt'"]
I am parent:21954660 starting wait_process(22544440, exitcode=0)
----------
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue40155>
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