学习如何正确使用Python临时文件

import os

import tempfile

# This will most certainly put you at risk

tmp = os.path.join(tempfile.gettempdir(), filename)

if not os.path.exists(tmp):

    with open(tmp, "w") file:

        file.write("defaults")

import os

import tempfile

open(tempfile.mktemp(), "w")

filename = "{}/{}.tmp".format(tempfile.gettempdir(), os.getpid())

open(filename, "w")

fd, path = tempfile.mkstemp()

try:

    with os.fdopen(fd, 'w') as tmp:

        # do stuff with temp file

        tmp.write('stuff')

finally:

    os.remove(path)

# 句柄关闭，文件即删除

with tempfile.TemporaryFile() as tmp:

    # Do stuff with tmp

    tmp.write('stuff')

tmp = tempfile.NamedTemporaryFile(delete=True)

try:

    # do stuff with temp

    tmp.write('stuff')

finally:

    tmp.close()  # 文件关闭即删除