import os
import tempfile


file_descriptor, file_path = tempfile.mkstemp(suffix='.tmp')

# You can convert the low level file_descriptor to a normal open file using fdopen
with os.fdopen(file_descriptor, 'w') as open_file:
    open_file.write('hello')

# OR without the 'with'
open_file = os.fdopen(file_descriptor, 'w')
open_file.write('hello')
open_file.close()

# OR without the open low level file_descriptor
os.close(file_descriptor)
open_file = open(file_path, 'w')
open_file.write('hello')
open_file.close()


# You are responsibile for deleting your temp file
os.unlink(file_path)