Is it possible to rewind a python StringIO in-memory file?

Question

Let's say I have a StringIO file-like object I just created from a string. I pass it to a function which expects files. This functions reads the entire file through the end. I want to now pass it to another function which expects a file-like object. Can I rewind it so that it can be read from the beginning? If not, what other approaches can I take to accomplish this that would be most pythonic?

Answer 1

certainly: most file-like objects in python that can possibly be rewound already support seek()

>>> import StringIO
>>> f = StringIO.StringIO("hello world")
>>> f.read(6)
'hello '
>>> f.tell()
6
>>> f.seek(0)
>>> f.tell()
0
>>> f.read()
'hello world'
>>>