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anki-code avatar anki-code commented on May 24, 2024

How to repeat this using expect:

#!/usr/bin/expect -f

set timeout 10

spawn xonsh --no-rc --no-env -DCOLOR_INPUT=0 -DCOLOR_RESULTS=0 -DPROMPT=@@ -DXONSH_HISTORY_BACKEND=dummy

set iterations 5

for {set i 0} {$i < $iterations} {incr i} {

    expect "@@"
    send "\$XONSH_SHOW_TRACEBACK=False\r"

    expect "@@"
    send "@aliases.register(\'f\')\r"
    send "def _fff():\r"
    send "    1/0\r\r\r"

    expect "@@"
    send "f\r"



    expect "@@"
    send "\$XONSH_SHOW_TRACEBACK=True\r"

    expect "@@"
    send "@aliases.register(\'f\')\r"
    send "def _fff():\r"
    send "    1/0\r\r\r"

    expect "@@"
    send "f\r"

}

expect {
    "Bad file descriptor" {
        send "echo BAD!\r"
        exit 100
    }
}


expect "@@"
send "exit\r"

expect eof

from xonsh.

anki-code avatar anki-code commented on May 24, 2024

I've found the difference between ptk versions:

# prompt-toolkit             3.0.39
$RAISE_SUBPROC_ERROR = False  # <--- this is needed to reproduce the exception
$XONSH_SHOW_TRACEBACK = False
@aliases.register('f')
def _fff():
    1/0
f
f
f
f
f
f
# NO ERROR

# prompt-toolkit             3.0.40
$RAISE_SUBPROC_ERROR = False  # <--- this is needed to reproduce the exception
$XONSH_SHOW_TRACEBACK = False
@aliases.register('f')
def _fff():
    1/0
f
f
f
f
f
f
#  File "/Users/pc/.local/xonsh-env/lib/python3.12/selectors.py", line 566, in select
#    kev_list = self._selector.control(None, max_ev, timeout)
#               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
# OSError: [Errno 9] Bad file descriptor


# prompt-toolkit             3.0.43
$RAISE_SUBPROC_ERROR = False  # <--- this is needed to reproduce the exception
$XONSH_SHOW_TRACEBACK = False
@aliases.register('f')
def _fff():
    1/0
f
f
f
f
f
f
# NO ERROR

Upstream issue - prompt-toolkit/python-prompt-toolkit#1853

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