Error

[Gary Herron]

On 05/26/2010 10:48 AM, William Miner wrote:
> I'm relative new to python and I puzzled by the following strange (to 
> me) behavior. I was taking pieces from two old scripts to build a new 
> one. When I began to debug it I got the following error message:
>
> Traceback (most recent call last):
>   File 
> "/Users/williamminer/ex2gen/ex2gen-3.0.5/src/ScriptDev/run_ex2gen_scan.py", 
> line 38, in <module>
>     if re.search('varm',line):
> AttributeError: 'function' object has no attribute 'search'
>
> This had worked in the previous script but not the new one. I noticed 
> that the new script had an additional line at the beginning (line 3)
>
> #!/usr/bin/env python
> import sys, math, os, shutil, commands, re, mpmath
> from mpmath import *
>
> When I deleted this line, the script ran. Why did the line
>
> from mpmath import *

Just a guess, (since I don;t have mpmath on hand), but if mpmath has a 
definition for something named re, it would overwrite any previous 
definition of re.

So general advice says don't use the "from xxx import *" unless you 
really *know* what is in the module, and need *all* of it imported.

Either:
   from mpmath import x,y,z,whatever

or
   import re
   import mpmath
   ... re.search ...
   ... mpmath.whatever ...



Gary Herron




>
> Trash the search function fro the regular expression module?
>
> I'm running Python 2.6.2 on  Mac running OS 10.6.3.
>
> Thanks!
>
> Buff Miner
> -- 
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