how to concisely create a temporary file that is a copy of another file in python

Question

I know that it is possible to create a temporary file, and write the data of the file I wish to copy to it. I was just wondering if there was a function like:

Answer 1

A slight variation (in particular I needed the preserve_extension feature for my use case, and I like the "self-cleanup" feature):

import os, shutil, tempfile
def create_temporary_copy(src_file_name, preserve_extension=False):
    '''
    Copies the source file into a temporary file.
    Returns a _TemporaryFileWrapper, whose destructor deletes the temp file
    (i.e. the temp file is deleted when the object goes out of scope).
    '''
    tf_suffix=''
    if preserve_extension:
        _, tf_suffix = os.path.splitext(src_file_name)
    tf = tempfile.NamedTemporaryFile(suffix=tf_suffix)
    shutil.copy2(src_file_name, tf.name)
    return tf