read() on tempfile

[cherico]

from tempfile import *

f = NamedTemporaryFile ()
f = write ( 'test' )
print f.read () #here print nothing

why is it nothing to read()?
I suppose f is of mode 'w+'

 

[Sidharth Kuruvila]

from tempfile import *

f = NamedTemporaryFile ()
f = write ( 'test' )
print f.read () #here print nothing

why is it nothing to read()?
I suppose f is of mode 'w+'

the rpoblem is probably that your file pointer is sitting at the end of the
file after you write something
try f.seek(0) before you read, might work

 

[Gerrit Holl]

from tempfile import *

f = NamedTemporaryFile ()
f = write ( 'test' )
print f.read () #here print nothing

Strange, it should raise an Exception.
I guess you typed it over?

'write' should give a NameError. You want to do f.write, not f=write.
After that, you first want to seek to 0.

Gerrit.