[ python-Bugs-1385055 ] execfile anomaly with "from __future__ import division"

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Mon Dec 19 11:15:23 CET 2005


Bugs item #1385055, was opened at 2005-12-19 10:15
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Category: Python Interpreter Core
Group: Python 2.4
Status: Open
Resolution: None
Priority: 5
Submitted By: Harri Pasanen (harripasanen)
Assigned to: Nobody/Anonymous (nobody)
Summary: execfile anomaly with "from __future__ import division"

Initial Comment:
If I have a file init.py with two lines: 
 
from __future__ import division 
print 3/4 
 
and I do  
 
[harri at dell-harri tests]$ python 
Python 2.4 (#1, Feb 16 2005, 01:23:25) 
[GCC 3.4.3 (Mandrakelinux 10.0 3.4.3-2mdk)] on linux2 
Type "help", "copyright", "credits" or "license" for 
more information. 
>>> execfile('init.py') 
0.75 
>>> 3/4 
0 
 
I would have expected the latter to return 0.75 as 
well. 
 
Due to this it seems impossible to provide init code 
that would initialize the interactive prompt to 
future division behaviour. 
 
The same applies to exec statement. 
 
I'm not sure if this is bug, or an unfortunate 
feature.  The documention is not very clear on this 
issue. 
 
-Harri 

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