["python","io"]
How to create in-memory file object

I want to make a in-memory file to use in pygame mixer. I mean something like http://www.pygame.org/docs/ref/music.html#pygame.mixer.music.load which says load() method supports file object. import requests from pygame import mixer r = requests.get("http://example.com/some_small_file.mp3") in_memory_file = file(r.content) # something like this mixer.music.init() mixer.music.load(in_memory_file) mixer.music.play()
You are probably looking for BytesIO or StringIO classes from Python io package, both available in python 2 and python 3. They provide a file-like interface you can use in your code the exact same way you interact with a real file. StringIO is used to store textual data: import io f = io.StringIO("some initial text data") BytesIO must be used for binary data: import io f = io.BytesIO(b"\x00\x00\x00\x00\x00\x00\x00\x00\x01\x01\x01\x01\x01\x01") To store MP3 file data, you will probably need the BytesIO class. To initialize it from a GET request to a server, proceed like this: import requests from pygame import mixer import io r = requests.get("http://example.com/somesmallmp3file.mp3") inmemoryfile = io.BytesIO(r.content) mixer.music.init() mixer.music.load(inmemoryfile) mixer.music.play() # This will free the memmory from any data inmemoryfile.close() Additional note: as both classes inherit from IOBase, they can be used as context manager with the with statement, so you don't need to manually call the close() method anymore: import requests from pygame import mixer import io r = requests.get("http://example.com/somesmallmp3file.mp3") with io.BytesIO(r.content) as inmemoryfile: mixer.music.init() mixer.music.load(inmemoryfile) mixer.music.play()