[Tutor] tempfile and passing files around

[Gabriel Farrell]

I have an issue with the tempfile module that I can't figure out.

Snippet of relevant script looks like so:

1   bob = tempfile.NamedTemporaryFile()
2   bob.write('Hallo!')
3   bob.read()
4   sam = tempfile.NamedTemporaryFile()
5   bobHandle = file(bob.name)
6   bobHandle.read()

As you can see, I'm creating two NamedTemporaryFiles and then reading
from the first.  Line 3 doesn't really do anything, there's no output
because we're reading at the end of the file, but as long as I leave
it in, line 6 will output the expected 'Hallo!'.  If I remove it,
there's no output from line 6.

I really stumbled upon this, and it looks like, if you create a
tempfile and write to it, then create another tempfile, you can only
open up the first to read it again if you do a read method on the
first file before you open it.  I dunno, just kinda baffled.

TIA, gabe