The tempfile module
This module allows you to quickly come up with unique names to use for temporary files.
# File: tempfile-example-1.py import tempfile import os tempfile = tempfile.mktemp() print "tempfile", "=>", tempfile file = open(tempfile, "w+b") file.write("*" * 1000) file.seek(0) print len(file.read()), "bytes" file.close() try: # must remove file when done os.remove(tempfile) except OSError: pass
tempfile => C:\TEMP\~160-1 1000 bytes
The TemporaryFile function picks a suitable name, and opens the file. It also makes sure that the file is removed when it’s closed (under Unix, you can remove an open file and have it disappear when the file is closed. On other platforms, this is done via a special wrapper class).
# File: tempfile-example-2.py import tempfile file = tempfile.TemporaryFile() for i in range(100): file.write("*" * 100) file.close() # removes the file!