我最终在程序的入口点包装了内置文件对象。我发现我没有关闭记录仪。
import io
import sys
import builtins
import traceback
from functools import wraps
def opener(old_open):
@wraps(old_open)
def tracking_open(*args, **kw):
file = old_open(*args, **kw)
old_close = file.close
@wraps(old_close)
def close():
old_close()
open_files.remove(file)
file.close = close
file.stack = traceback.extract_stack()
open_files.add(file)
return file
return tracking_open
def print_open_files():
print(f'### {len(open_files)} OPEN FILES: [{", ".join(f.name for f in open_files)}]', file=sys.stderr)
for file in open_files:
print(f'Open file {file.name}:\n{"".join(traceback.format_list(file.stack))}', file=sys.stderr)
open_files = set()
io.open = opener(io.open)
builtins.open = opener(builtins.open)
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