FAQ: Build your own Mini-Blockchain! - Creating the Blockchain Class

Frequently Asked Questions Python FAQ
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This community-built FAQ covers the “Creating the Blockchain Class” exercise from the lesson “Build your own Mini-Blockchain!”.

Paths and Courses
This exercise can be found in the following Codecademy content:

Introduction to Blockchain

FAQs on the exercise Creating the Blockchain Class

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2

Hi how do we download block.py on anaconda?

3

Hey there,
When creating a genesis block in Section 5 (creating the Blockchain class):
I used the following line to create the genesis block:

self.chain.append(Block([],0))

Is that the “normal” way of doing this, or should I be creating the block separately before appending it like this?

self.gen_block = Block([],0)
self.chain.append(self.gen_block)

I’m just hesitant because I’m not sure if the “self” prefix cause Python to process these any differently.

4

I did it the exact way. However, got it wrong and when checked the solution. found this way more concise.