cpython/Lib/_pyrepl/__main__.py

48 lines
1.4 KiB
Python

import os
import sys
CAN_USE_PYREPL = sys.platform != "win32"
def interactive_console(mainmodule=None, quiet=False, pythonstartup=False):
global CAN_USE_PYREPL
if not CAN_USE_PYREPL:
return sys._baserepl()
startup_path = os.getenv("PYTHONSTARTUP")
if pythonstartup and startup_path:
import tokenize
with tokenize.open(startup_path) as f:
startup_code = compile(f.read(), startup_path, "exec")
exec(startup_code)
# set sys.{ps1,ps2} just before invoking the interactive interpreter. This
# mimics what CPython does in pythonrun.c
if not hasattr(sys, "ps1"):
sys.ps1 = ">>> "
if not hasattr(sys, "ps2"):
sys.ps2 = "... "
run_interactive = None
try:
import errno
if not os.isatty(sys.stdin.fileno()):
raise OSError(errno.ENOTTY, "tty required", "stdin")
from .simple_interact import check
if err := check():
raise RuntimeError(err)
from .simple_interact import run_multiline_interactive_console
run_interactive = run_multiline_interactive_console
except Exception as e:
from .trace import trace
msg = f"warning: can't use pyrepl: {e}"
trace(msg)
print(msg, file=sys.stderr)
CAN_USE_PYREPL = False
if run_interactive is None:
return sys._baserepl()
return run_interactive(mainmodule)
if __name__ == "__main__":
interactive_console()