asyncio REPL fails to run with TERM=dumb or PYTHON_BASIC_REPL in 3.13.0b2

Bug report

Bug description:

Similar bug report: #119102

Linux: Starting asyncio REPL using TERM=dumb:

$ TERM=dumb python -m asyncio
asyncio REPL 3.13.0b2 (main, Jun 13 2024, 04:41:44) [GCC 12.2.0] on linux
Use "await" directly instead of "asyncio.run()".
Type "help", "copyright", "credits" or "license" for more information.
>>> import asyncio
Exception in thread Interactive thread:
exiting asyncio REPL...
Exception ignored in atexit callback <function register_readline.<locals>.write_history at 0x7f8eed3b93a0>:
Traceback (most recent call last):
  File "<frozen site>", line 538, in write_history
  File "/usr/local/lib/python3.13/_pyrepl/readline.py", line 435, in write_history_file
Traceback (most recent call last):
    history = self.get_reader().get_trimmed_history(maxlength)
  File "/usr/local/lib/python3.13/_pyrepl/readline.py", line 349, in get_reader
  File "/usr/local/lib/python3.13/asyncio/__main__.py", line 117, in run
    raise RuntimeError(err)
RuntimeError: terminal doesn't have the required clear capability
    console = Console(self.f_in, self.f_out, encoding=ENCODING)
  File "/usr/local/lib/python3.13/_pyrepl/unix_console.py", line 172, in __init__

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.13/threading.py", line 1039, in _bootstrap_inner
    self.run()
    ~~~~~~~~^^
  File "/usr/local/lib/python3.13/asyncio/__main__.py", line 119, in run
    console.interact(banner="", exitmsg=exit_message)
                                        ^^^^^^^^^^^^
NameError: name 'exit_message' is not defined
    self._clear = _my_getstr("clear")
  File "/usr/local/lib/python3.13/_pyrepl/unix_console.py", line 165, in _my_getstr
    raise InvalidTerminal(
_pyrepl.unix_console.InvalidTerminal: terminal doesn't have the required clear capability

Linux: Using PYTHON_BASIC_REPL=1:

$ PYTHON_BASIC_REPL=1 python -m asyncio
asyncio REPL 3.13.0b2 (main, Jun 13 2024, 04:41:44) [GCC 12.2.0] on linux
Use "await" directly instead of "asyncio.run()".
Type "help", "copyright", "credits" or "license" for more information.
>>> import asyncio
Exception in thread Interactive thread:
exiting asyncio REPL...

CPython versions tested on:

3.13

Operating systems tested on:

Linux, macOS

@Eclips4

Confirm on main branch and 3.13

Plz assign this to me, I will dive into this issue. BTW we need asyncio and repl related labels cc @Eclips4

@ambv

@ambv this Bug was introduced into codebase since #119433 and was made by two part

https://github.com/python/cpython/pull/119433/files#diff-7dde21a2106757650c70cf16ab62c5c40a63bec89e420d70ae12782c95e1daa8R119 we should convert exit_message to ''
An InvalidTerminal has been raised in register_readline. Actually I'm not sure which is the graceful way to fix it.

https://github.com/python/cpython/pull/119433/files#diff-7dde21a2106757650c70cf16ab62c5c40a63bec89e420d70ae12782c95e1daa8R119 we should convert exit_message to ''

We already have a PR to fix that: #121341

https://github.com/python/cpython/pull/119433/files#diff-7dde21a2106757650c70cf16ab62c5c40a63bec89e420d70ae12782c95e1daa8R119 we should convert exit_message to ''

We already have a PR to fix that: #121341

Yes but this is only for case1

asyncio REPL 3.14.0a0 (heads/main:6239d41527, Jul  6 2024, 20:42:50) [GCC 14.1.1 20240522] on linux
Use "await" directly instead of "asyncio.run()".
Type "help", "copyright", "credits" or "license" for more information.
>>> import asyncio
>>>
exiting asyncio REPL...
Exception ignored in atexit callback <function register_readline.<locals>.write_history at 0x7ce232fa9850>:
Traceback (most recent call last):
  File "/home/manjusaka/Documents/projects/cpython/Lib/site.py", line 537, in write_history
    _pyrepl.readline.write_history_file(history)
  File "/home/manjusaka/Documents/projects/cpython/Lib/_pyrepl/readline.py", line 444, in write_history_file
    history = self.get_reader().get_trimmed_history(maxlength)
  File "/home/manjusaka/Documents/projects/cpython/Lib/_pyrepl/readline.py", line 358, in get_reader
    console = Console(self.f_in, self.f_out, encoding=ENCODING)
  File "/home/manjusaka/Documents/projects/cpython/Lib/_pyrepl/unix_console.py", line 173, in __init__
    self._clear = _my_getstr("clear")
  File "/home/manjusaka/Documents/projects/cpython/Lib/_pyrepl/unix_console.py", line 166, in _my_getstr
    raise InvalidTerminal(
_pyrepl.unix_console.InvalidTerminal: terminal doesn't have the required clear capability

Here's case2. This exception should not be raised into terminal I guess

I think this is fixed on current main now.

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asyncio REPL fails to run with TERM=dumb or PYTHON_BASIC_REPL in 3.13.0b2 #120842

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asyncio REPL fails to run with TERM=dumb or PYTHON_BASIC_REPL in 3.13.0b2 #120842

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Bug report

Bug description:

CPython versions tested on:

Operating systems tested on:

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Zheaoli commented on Jun 21, 2024

Zheaoli commented on Jul 6, 2024

Eclips4 commented on Jul 6, 2024

Zheaoli commented on Jul 6, 2024

kumaraditya303 commented on May 16, 2025

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