Could somebody please explain what is happening ....

[John Dean]

Hi

I have been reading quite a lot of Python source code recently and I have
come across a particular construct which I don't understand. I would be
grateful if somebody could explain the reason for including the following
lines of code. I have seen it only at the beginning of a module:-

global sys
import sys

global os
import os

.....
.....

I know what global means and I know what import means but what is the reason
for making an imported module global?

--
Best Regards
John

[Ganesan R]

>>>>> "John" == John Dean <jo**@rygannon.com> writes:

I know what global means and I know what import means but what is the reason
for making an imported module global?

I can't think of any reason for doing that. May be, sys or os are being
re-assigned somewhere in the code (which would be a weird thing to do).

Ganesan

--
Ganesan R

[Andrew Bennetts]

On Mon, Sep 15, 2003 at 08:59:42AM +0000, John Dean wrote:

Hi

I have been reading quite a lot of Python source code recently and I have
come across a particular construct which I don't understand. I would be
grateful if somebody could explain the reason for including the following
lines of code. I have seen it only at the beginning of a module:-

global sys
import sys

global os
import os

....
....

I know what global means and I know what import means but what is the reason
for making an imported module global?

The 'global' statement is useless in the global scope (it only does
something useful inside functions), so I'm guessing that whoever wrote that
code didn't understand Python's 'global' statements.

-Andrew.

[Duncan Booth]

"John Dean" <jo**@rygannon.com> wrote in
news:3f***********************@lovejoy.zen.co.uk:

I have been reading quite a lot of Python source code recently and I
have come across a particular construct which I don't understand. I
would be grateful if somebody could explain the reason for including
the following lines of code. I have seen it only at the beginning of a
module:-

global sys
import sys

global os
import os

....
....

I know what global means and I know what import means but what is the
reason for making an imported module global?

None whatsoever. This isn't a construct used by anyone who knows what the
global statement does: outside a function global has precisely no effect.

--
Duncan Booth du****@rcp.co.uk
int month(char *p){return(124864/((p[0]+p[1]-p[2]&0x1f)+1)%12)["\5\x8\3"
"\6\7\xb\1\x9\xa\2\0\4"];} // Who said my code was obscure?

[John Dean]

John Dean wrote:

Hi

I have been reading quite a lot of Python source code recently and I have
come across a particular construct which I don't understand. I would be
grateful if somebody could explain the reason for including the following
lines of code. I have seen it only at the beginning of a module:-

global sys
import sys

global os
import os

....
....

I know what global means and I know what import means but what is the
reason for making an imported module global?

Thank you to all who posted an answer. I was begining to think I was going
nuts or something. Even though I am new to Python I knew something was
wrong
---
Best Regards
John