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gh-127960 Fix the REPL to set the correct namespace by setting the correct __main__ module #134275

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Merged
ambv merged 10 commits into from
May 22, 2025
Merged

gh-127960 Fix the REPL to set the correct namespace by setting the correct __main__ module #134275

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8222889
Make _pyrepl not to use the __main__ module as the namespace
whitphx May 19, 2025
6f30f79
Fix Modules/main.c to pass the main module object to the Python-based…
whitphx May 19, 2025
d4ed766
Simplify Lib/_pyrepl/main.py
whitphx May 19, 2025
b681275
Refactoring Modules/main.c
whitphx May 19, 2025
3d76ed8
Fix pymain_run_stdin() in Modules/main.c to call pymain_start_pyrepl(…
whitphx May 19, 2025
2e21fb5
Adapt pyrepl discovery to the new transparent reality
ambv May 21, 2025
e8459d7
Add Blurb
ambv May 21, 2025
7f32756
Add test cases
whitphx May 21, 2025
505e058
Set module_completer to reflect the namespace that the PyREPL actuall…
whitphx May 21, 2025
3ebd1b1
Add and fix the test cases for the module completer
whitphx May 21, 2025
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Make _pyrepl not to use the __main__ module as the namespace 
The `__main__` module imported in the `_pyrepl` module points to the `_pyrepl` module itself when the interpreter was launched without `-m` option and didn't execute a module,
while it's an unexpected behavior that `__main__` can be `_pyrepl` and relative imports such as `from . import *` works based on the `_pyrepl` module.
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@whitphx
whitphx committed May 19, 2025
commit 8222889f71a6904806074d93d9d78cb1b55a5826
4 changes: 2 additions & 2 deletions Lib/_pyrepl/main.py
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Original file line number Diff line number Diff line change
@@ -1,6 +1,7 @@
import errno
import os
import sys
import types


CAN_USE_PYREPL: bool
Expand Down Expand Up @@ -32,9 +33,8 @@ def interactive_console(mainmodule=None, quiet=False, pythonstartup=False):
if mainmodule:
namespace = mainmodule.__dict__
else:
import __main__
__main__ = types.ModuleType("__main__")
namespace = __main__.__dict__
namespace.pop("__pyrepl_interactive_console", None)

# sys._baserepl() above does this internally, we do it here
startup_path = os.getenv("PYTHONSTARTUP")
Expand Down