Write to a tempfile by 'tempfile' module (in Python 3.7)

write-to-tempfile.py

import tempfile

def write_to_temp_file(obj):
    """
    Write an object to a temporary file. The location of the temp file is
    determined by the OS.

    Args:
        obj: a writable object.

    Returns:
        str: the temp file path.
    """
    temp_name = None
    with tempfile.NamedTemporaryFile(delete=False) as temp:
        temp.write(bytes(obj, encoding='utf-8'))
        temp_name = temp.name
    assert temp_name is not None
    return temp_name

# Simple string ------------------------

x=write_to_temp_file('hello')

print(x)
open(x,'r',encoding = 'utf-8').read()

# JSON ------------------------

import json

js=json.dumps({'lat': 0, 'lon': 0})

y=write_to_temp_file(js)

print(y)
open(y,'r',encoding = 'utf-8').read()