Extracting Data From Classes In Python

Question

[Francis]

How can I extract data from a class in Python?

>>>Bio.Alphabet.RNAAlphabet  
<class Bio.Alphabet.RNAAlphabet at 0x01EBF420>

How can I extract, say for example, the letters of that Alphabet from that object in Byophthon?

[Eric Normandeau]

If this question solve your problem and your other question is redundant, please closing this other question. Cheers

[Eric Normandeau]

If this question solved your problem and your other question is redundant, please closing this other question. Cheers

Answer 1

[Eric Normandeau]

Hi,

In order to know the possible methods (functions) or attributes of an object (the data contained within that object), you should use the following Python command:

dir(object_name)

In your case, this would probably give:

dir(Bio.Alphabet.RNAAlphabet)

This will tell you what you can use or visualize in the object.

I suggest that you take some time familiarizing yourself with classes and object oriented programming in Python

EDIT:

Let's say the name of the attribute containing the data is 'letters', you can print it like this:

print Bio.Alphabet.RNAAlphabet.letters

If you don't want to print it, put it in a variable or torture it however you like :P.

Cheers

[Francis]

i see. And once i find the data that is contained within the object, how can I call it?