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b1b8962443
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. Co-authored-by: Łukasz Langa <lukasz@langa.pl>
58 lines
1.8 KiB
Python
58 lines
1.8 KiB
Python
import errno
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import os
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import sys
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import types
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CAN_USE_PYREPL: bool
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FAIL_REASON: str
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try:
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if sys.platform == "win32" and sys.getwindowsversion().build < 10586:
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raise RuntimeError("Windows 10 TH2 or later required")
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if not os.isatty(sys.stdin.fileno()):
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raise OSError(errno.ENOTTY, "tty required", "stdin")
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from .simple_interact import check
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if err := check():
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raise RuntimeError(err)
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except Exception as e:
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CAN_USE_PYREPL = False
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FAIL_REASON = f"warning: can't use pyrepl: {e}"
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else:
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CAN_USE_PYREPL = True
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FAIL_REASON = ""
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def interactive_console(mainmodule=None, quiet=False, pythonstartup=False):
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if not CAN_USE_PYREPL:
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if not os.getenv('PYTHON_BASIC_REPL') and FAIL_REASON:
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from .trace import trace
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trace(FAIL_REASON)
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print(FAIL_REASON, file=sys.stderr)
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return sys._baserepl()
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if not mainmodule:
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mainmodule = types.ModuleType("__main__")
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namespace = mainmodule.__dict__
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# sys._baserepl() above does this internally, we do it here
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startup_path = os.getenv("PYTHONSTARTUP")
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if pythonstartup and startup_path:
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sys.audit("cpython.run_startup", startup_path)
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import tokenize
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with tokenize.open(startup_path) as f:
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startup_code = compile(f.read(), startup_path, "exec")
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exec(startup_code, namespace)
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# set sys.{ps1,ps2} just before invoking the interactive interpreter. This
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# mimics what CPython does in pythonrun.c
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if not hasattr(sys, "ps1"):
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sys.ps1 = ">>> "
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if not hasattr(sys, "ps2"):
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sys.ps2 = "... "
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from .console import InteractiveColoredConsole
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from .simple_interact import run_multiline_interactive_console
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console = InteractiveColoredConsole(namespace, filename="<stdin>")
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run_multiline_interactive_console(console)
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