[caiman-discuss] Distro-constructor finalizer with messages through sockets

[Jack Schwartz]

Dave Miner wrote:
> Jack Schwartz wrote:
>> HI Dave.
>>> With respect to the new file, why is isNumberType() not sufficient 
>>> for what you're doing?
>>>   
>> Thanks for the tip.  I didn't know about isNumberType().  I have 
>> rewritten isnumber() as follows:
>>
>> import operator
>>
>> def isnumber(arg):
>>         try:
>>                 if operator.isNumberType(int(arg, 0)):
>>                         return True
>>         except:
>>                 pass
>>         try:
>>                 if operator.isNumberType(float(arg)):
>>                         return True
>>         except:
>>                 pass
>>         return False
>>
>
> Are there any exceptions actually possible here that would require 
> catching?
Yes.  Many.  In particular,
- If you give a floating point or any non-int string to the int typecast.
- If you give an int or non-floating-point string to the float typecast.

This is exactly the type of thing this method is supposed to figure out.

    Thanks,
    Jack