from __future__ import annotations | |
import os | |
# types | |
if False: | |
from typing import IO | |
trace_file: IO[str] | None = None | |
if trace_filename := os.environ.get("PYREPL_TRACE"): | |
trace_file = open(trace_filename, "a") | |
def trace(line: str, *k: object, **kw: object) -> None: | |
if trace_file is None: | |
return | |
if k or kw: | |
line = line.format(*k, **kw) | |
trace_file.write(line + "\n") | |
trace_file.flush() |