Converting 2bit hex representation to integer ?

[Madhusudan Singh]

Madhusudan Singh wrote:

> Larry Bates wrote:
> 
>> Can you give us an example.  I don't know what two bit
>> hex means (takes at least 4 bits to make a hex digit).
> 
> Like 64(base 16)=100.
> I am referring to 64 in the above.
> 
>> 
>> Now I'm going to try to guess:
>> 
>> If the data is binary then all you need to do is to
>> use the struct.unpack module to convert to integer.
> 
> Doesn't unpack presume that the input is a string ? If so, is it safe to
> convert binary data to string using str() ?

Followup to this :

I just tried :

n=str(x)
print struct.unpack("b",n)

I get (51,)

The corresponding output of binascii.b2a_hex(x) is 33.

And 51_10=33_16. So that checks out. What is the deal with the parenthesis
and the comma ?