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PyREPL exits the interpreter on specific input #125666
Description
Bug report
Bug description:
Playing with the Python 3.13.0 interpreter installed from brew on macOS 14.7 in a Terminal window.
I entered the repl and typed
>>> import math
>>> math.tau
6.283185307179586Then I hit ctrl-P to get the last line and hit SPC, /, 2. Oddly, the SPC got eaten and the slash ended up right next to the u. I didn't notice that until I hit Enter, at which point the exception occurred and exited the interpreter.
Unfortunately, I cannot reproduce it again.
% python3
Python 3.13.0 (main, Oct 7 2024, 05:02:14) [Clang 15.0.0 (clang-1500.3.9.4)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import math
>>> math.tau
6.283185307179586
>>> math.tau/ 2
SyntaxError: source code string cannot contain null bytes (<python-input-2>)
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "<frozen runpy>", line 198, in _run_module_as_main
File "<frozen runpy>", line 88, in _run_code
File "/usr/local/Cellar/python@3.13/3.13.0_1/Frameworks/Python.framework/Versions/3.13/lib/python3.13/_pyrepl/__main__.py", line 6, in <module>
__pyrepl_interactive_console()
~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
File "/usr/local/Cellar/python@3.13/3.13.0_1/Frameworks/Python.framework/Versions/3.13/lib/python3.13/_pyrepl/main.py", line 59, in interactive_console
run_multiline_interactive_console(console)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^
File "/usr/local/Cellar/python@3.13/3.13.0_1/Frameworks/Python.framework/Versions/3.13/lib/python3.13/_pyrepl/simple_interact.py", line 160, in run_multiline_interactive_console
more = console.push(_strip_final_indent(statement), filename=input_name, _symbol="single") # type: ignore[call-arg]
File "/usr/local/Cellar/python@3.13/3.13.0_1/Frameworks/Python.framework/Versions/3.13/lib/python3.13/code.py", line 313, in push
more = self.runsource(source, filename, symbol=_symbol)
File "/usr/local/Cellar/python@3.13/3.13.0_1/Frameworks/Python.framework/Versions/3.13/lib/python3.13/_pyrepl/console.py", line 179, in runsource
self.showsyntaxerror(filename, source=source)
~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/Cellar/python@3.13/3.13.0_1/Frameworks/Python.framework/Versions/3.13/lib/python3.13/_pyrepl/console.py", line 165, in showsyntaxerror
super().showsyntaxerror(filename=filename, **kwargs)
~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/Cellar/python@3.13/3.13.0_1/Frameworks/Python.framework/Versions/3.13/lib/python3.13/code.py", line 115, in showsyntaxerror
self._showtraceback(typ, value, None, source)
~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/Cellar/python@3.13/3.13.0_1/Frameworks/Python.framework/Versions/3.13/lib/python3.13/code.py", line 140, in _showtraceback
and not value.text and len(lines) >= value.lineno):
^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: '>=' not supported between instances of 'int' and 'NoneType'CPython versions tested on:
3.13
Operating systems tested on:
macOS
Activity
devdanzin commentedon Oct 19, 2024
Maybe #88575 has a clue about when
SyntaxError.linenocan beNone?Is it possible that instead of eating the space some invisible character got inserted?
Edit: oh, it says right on the error that the issue was a null byte.
devdanzin commentedon Oct 19, 2024
Aha, I can reproduce on Linux by pressing
Ctrl+Shift+@followed byEnter:Edit
Ctrl+Spacefollowed byEnteralso works, it's probably what you typed by accident.gh-125666: Avoid PyREPL exiting when a null byte is in input (#125732)
pythongh-125666: Avoid PyREPL exiting when a null byte is in input (p…
[3.13] gh-125666: Avoid PyREPL exiting when a null byte is in input (G…
devdanzin commentedon Dec 24, 2024
This can be closed since #125732 and #126023 were merged.
pythongh-125666: Avoid PyREPL exiting when a null byte is in input (p…