Python os.remove(filename) 抛出错误“已被 temp 使用”

Question

My current code is

import os
import pickle
import tempfile

# Pickle on HIGHEST_PROTOCOL breaks on Python 3.6.5
_PICKLE_PROTOCOL = 4
#CHANGED FROM 2 TO 4 TO ACCOMODATE VERSION, DONE BY USER


def _pickle_iterable(filename, iterable):
    with open(filename, 'wb') as pickle_fh:
        pklr = pickle.Pickler(pickle_fh, _PICKLE_PROTOCOL)
        for entry in iterable:
            pklr.dump(entry)
            pklr.clear_memo()


def _open_pickle(filename):
    return open(filename, 'rb')


def _unpickle_iterable(pickle_fh):
    with pickle_fh:
        unpklr = pickle.Unpickler(pickle_fh)
        try:
            while True:
                yield unpklr.load()
        except EOFError:
            pass


def file_buffered_tee(iterable, n=2):
    _,  filename = tempfile.mkstemp()
    try:
        _pickle_iterable(filename, iterable)
        return tuple(_unpickle_iterable(_open_pickle(filename)) for _ in range(n))
    finally:
        os.remove(filename)

os.remove(filename) gives the error

PermissionError: [WinError 32] The process cannot access the file because it is being used by another process: 'C:\\Users\\s%username%\\AppData\\Local\\Temp\\tmpaoos53ie'

I don't know how to fix it, and the GitHub repo I pulled this from is archived, and I can't open another issue request.

I'm coming back to stackoverflow, and everywhere else I've seen I cannot find an applicable answer, and while I think I understand the code, I keep hitting errors lol

Any help is appreciated! Thank you!

edit 1: forgot imports... dumb mistake

edit 2: I left out code because I thought it was un-needed. Thank you all for being patient:P

edit 3: Traceback:

line37, in file_buffered_tee:

os.remove(filename)

PermissionError: [WinError 32] The process cannot access the file because it is being used by another process: 'C:\\Users\\%username%\\AppData\\Local\\Temp\\tmp*xxxxxxx*'

edit 4: apparently the same issue was being had here , however it does everything the answer says to do, but returns the same error... Still not answered here and still very confused. Documentation hasnt helped either

Answer 1

You can tell tempfile to delete file upon close. This way, when you close the file, the file will be deleted automatically.

This may help you: https://docs.python.org/3/library/tempfile.html

tempfile.NamedTemporaryFile(mode='w+b', buffering=None, encoding=None, newline=None, suffix=None, prefix=None, dir=None, delete=True , *, errors=None)

delete=True parameter is what you're looking for. Now use tempfile to close the file via file.close()