mkstemp on pre-2.3 Python

[djw]

Hi, c.l.p'ers-

I working on some code that creates a temporary file on Linux. I found some
code that the BDFL posted previously on the newsgroup and adapted it for my
use. I can't get the "pre-2.3" code to work.
try:
make_temp_file = tempfile.mkstemp # 2.3+
except AttributeError:
def make_temp_file( suffix='', prefix='', dir='', text=False ): #pre-2.3
path = tempfile.mktemp( suffix )
fd = os.open( path, os.O_WRONLY|os.O_CREAT|os.O_EXCL, 0700 )
os.unlink( path )
return ( os.fdopen( fd, 'w+b' ), path )

Here's the error:

File "utils.py", line 583, in make_temp_file
return ( os.fdopen( fd, 'w+b' ), path )
OSError: [Errno 22] Invalid argument

Anybody have any ideas on what I am doing wrong?

Thanks,

Don

[Nick Craig-Wood]

djw <do**********@hp.com> wrote:

Hi, c.l.p'ers-

I working on some code that creates a temporary file on Linux. I found some
code that the BDFL posted previously on the newsgroup and adapted it for my
use. I can't get the "pre-2.3" code to work.
try:
make_temp_file = tempfile.mkstemp # 2.3+
except AttributeError:
def make_temp_file( suffix='', prefix='', dir='', text=False ): #pre-2.3
path = tempfile.mktemp( suffix )
fd = os.open( path, os.O_WRONLY|os.O_CREAT|os.O_EXCL, 0700 )
os.unlink( path )
return ( os.fdopen( fd, 'w+b' ), path )

Here's the error:

File "utils.py", line 583, in make_temp_file
return ( os.fdopen( fd, 'w+b' ), path )
OSError: [Errno 22] Invalid argument

Anybody have any ideas on what I am doing wrong?

Replace the os.O_WRONLY with os.O_RDWR and all will be fine

import tempfile, os
suffix=""
path = tempfile.mktemp( suffix )
fd = os.open( path, os.O_RDWR|os.O_CREAT|os.O_EXCL, 0700 )
f = os.fdopen( fd, 'w+b' )
f <open file '<fdopen>', mode 'w+b' at 0xb7de7a60> print >>f, "Hello"
f.seek(0)
f.read() 'Hello\n' f.close()

--
Nick Craig-Wood <ni**@craig-wood.com> -- http://www.craig-wood.com/nick

[djw]

Thank you very much, that was the ticket!

-Don
Nick Craig-Wood wrote:

djw <do**********@hp.com> wrote:

Hi, c.l.p'ers-

I working on some code that creates a temporary file on Linux. I found
some code that the BDFL posted previously on the newsgroup and adapted
it for my use. I can't get the "pre-2.3" code to work.
try:
make_temp_file = tempfile.mkstemp # 2.3+
except AttributeError:
def make_temp_file( suffix='', prefix='', dir='', text=False ):
#pre-2.3
path = tempfile.mktemp( suffix )
fd = os.open( path, os.O_WRONLY|os.O_CREAT|os.O_EXCL, 0700 )
os.unlink( path )
return ( os.fdopen( fd, 'w+b' ), path )

Here's the error:

File "utils.py", line 583, in make_temp_file
return ( os.fdopen( fd, 'w+b' ), path )
OSError: [Errno 22] Invalid argument

Anybody have any ideas on what I am doing wrong?

Replace the os.O_WRONLY with os.O_RDWR and all will be fine

import tempfile, os
suffix=""
path = tempfile.mktemp( suffix )
fd = os.open( path, os.O_RDWR|os.O_CREAT|os.O_EXCL, 0700 )
f = os.fdopen( fd, 'w+b' )
f <open file '<fdopen>', mode 'w+b' at 0xb7de7a60> print >>f, "Hello"
f.seek(0)
f.read() 'Hello\n' f.close()