Question

I am getting this error " IOError: [Errno 13] Permission denied " while running a simple truncating program.

Please help!!!

Answer 1

##the program is this:

from sys import argv
print "sads"

script , file = argv

t = open(file , 'rw')
print t.read()
raw_input()
t.truncate()
t.write("mohit ")
print t.read()

##the program is executed till raw_input()
##but i get a error at line "t.truncate()"

Answer 2

what version are you using?
i get an error trying to open a file with 'rw' as the mode argument.
I get an error trying to truncate when opened for reading.
when opened for writing i get an error trying to read it.
same when opened for appending
http://dpaste.com/1041878/

can you post your whole session, including the traceback?

Answer 3

I am python 2.5.4.
My figured out my problem. Instead of 'rw' ,try using 'w' in the open command.