How can I exec() in global?

[Peter Otten]

Is it possible to exec() from within a function so the exec'd
code affects global?

For example

def foo():
exec ('X=[1,2,3]')

And I'd like 'X' to be a global variable.

Traceback (most recent call last):
.... exec "x = [1, 2, 3]" in globals()
....[1, 2, 3]

Peter

 

[Phil Frost]

You can do exec(some_code, globals(), globals()) to execute some_code as
if it were executed at module scope. I can't really think of a reason
off hand why you would want to do this, but I assume you have your
reasons.

 

[Michel Claveau - abstraction méta-galactique non t]

Hi too !



You can, also, to do :

def foo():
exec ('''global X
X=[1,2,3]''')



@-salutations

 

[Michel Claveau - abstraction méta-galactique non t]

Hi !


I have one sample reason (only me ?) : i had make a COM-server in Python ;
and i send, from other applis, some Python's scripts, by a string, like
parameters. My COM-server can to execute this scripts.


*sorry for my bad english*


@-salutations

 

[Michel Claveau - abstraction méta-galactique non t]

re-Hi !

http://ponx.org (IE only, with scripts autorized)

 

[Jerald]

Hi.

Is it possible to exec() from within a function so the exec'd
code affects global?

For example

def foo():
exec ('X=[1,2,3]')

And I'd like 'X' to be a global variable.


Thanks,

Gerald

 

[Jerald]

Michel Claveau - abstraction méta-galactique non triviale en fuite

I have one sample reason (only me ?) : i had make a COM-server in Python ;
and i send, from other applis, some Python's scripts, by a string, like
parameters. My COM-server can to execute this scripts.

Similar reason here.

def mydef(X):
exec (X)

And

mydef("""
def g():
print 'Hi'
""")


cheers

Gerald