How to pass variable in exec statment in python

Question

I am having two python files as 1.py and 2.py.

**1.py is as** 
class A:
       def __init__(self):
              x = 5
              y = 7
              NUMBERS = self
              fp = open(filePath)
              temp = fp.read()
              exec(temp)
              fp.close()
              ADD_METHOD()

**2.py is as**
    def ADD_METHOD():
          print NUMBERS.x + NUMBERS.y

Now My question how this NUMBERS varaible is available in 2.py file. This is example for better view of problem, i know i can do this by importing module but the problem is that i have to do solution with exec() method and ho can i get NUMBERS in 2.py file ie should i have to pass this with exec as argument or some other approach.

Any Help really appreciable Thanks

Are you talking about the exec statement, or about os.exec()? — Ignacio Vazquez-Abrams
– Ignacio Vazquez-Abrams, Commented Jul 16, 2010 at 10:02
fp = open(2.py) temp = fp.read() fp.close() exec(temp) can we do now this — mukul sharma
– mukul sharma, Commented Jul 16, 2010 at 11:43

Michael Mior · Accepted Answer · 2010-07-16 11:36:25Z

2

If these are both Python files that you wrote yourself, why not just create a function in 2.py that you can import and call in 1.py? This is a much easier and cleaner abstraction. It also avoids the creation of a new process. You could write something like this:

# **1.py is as**
from 2 import ADD_METHOD
class A:
       def __init__(self):
              x = 5
              y = 7
              ADD_METHOD(x, y)

# **2.py is as**
    def ADD_METHOD(x, y):
          print x + y

Note that you really should pick better names than 1.py and 2.py to avoid confusion later ;)

answered Jul 16, 2010 at 11:36

Michael Mior

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Comments

robert · Accepted Answer · 2010-07-16 11:27:56Z

0

I'm not sure what exactly you need, but I have a solution to your trivial example that follows your limitations.

# 1.py
...
os.execl( "2.py", str( NUMBERS.x ), str( NUMBERS.y ) )

# 2.py
from collections import namedtuple
A = namedtuple( "A", "x y" )
NUMBERS = A( x=sys.argv[1], y=sys.argv[2] )
...

answered Jul 16, 2010 at 11:27

robert

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