"ValueError: I/O operation on closed file." when using print() with file argument

[Harding-Stardust]

Steps to Reproduce

1. Create bug_xonsh.py and paste the following code:

import datetime
import time
import sys

def now_nice_format(arg_utc: bool = False) -> str:
    """ Helper function for timestamped_line() """

    dt = datetime.datetime.now(datetime.UTC) if arg_utc else datetime.datetime.now()
    res = time.strftime("%Y-%m-%d %H:%M:%S", datetime.datetime.timetuple(dt))
    return res

def timestamped_line(arg_str: str = "") -> str:
    return f"[{now_nice_format()}] {arg_str}"

def timestamped_print(arg_str: str = "", arg_file = sys.stdout, arg_force_flush: bool = False):
    print(timestamped_line(arg_str), file=arg_file, flush=arg_force_flush) 

In xonsh, run the following code:

import bug_xonsh
bug_xonsh.timestamped_print("test")
xonsh: To log full traceback to a file set: $XONSH_TRACEBACK_LOGFILE = <filename>
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "P:\bug_xonsh.py", line 16, in timestamped_print
    print(timestamped_line(arg_str), file=arg_file, flush=arg_force_flush)
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "E:\Users\<username>\Appdata\Local\Programs\Python\Python312\Lib\site-packages\xonsh\base_shell.py", line 182, in write
    self.mem.write(s)
ValueError: I/O operation on closed file.

+------------------+---------------------------+
| xonsh            | 0.14.4                    |
| Python           | 3.12.1                    |
| PLY              | 3.11                      |
| have readline    | False                     |
| prompt toolkit   | 3.0.43                    |
| shell type       | prompt_toolkit            |
| history backend  | json                      |
| pygments         | 2.17.2                    |
| on posix         | False                     |
| on linux         | False                     |
| on darwin        | False                     |
| on windows       | True                      |
| on cygwin        | False                     |
| on msys2         | False                     |
| is superuser     | False                     |
| default encoding | utf-8                     |
| xonsh encoding   | utf-8                     |
| encoding errors  | surrogateescape           |
| xontrib 1        | coreutils                 |
| RC file 1        | C:\Users\<redacted>/.xonshrc |
+------------------+---------------------------+

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[anki-code]

I can't repeat this in Python 3.11.6.
I can repeat this in xonsh 0.14.4.
Thanks!