Looking for partner(s) to study blockchain together

study blockchain as programmer/ smart contract / connecting smart contract  or architect as advance person ??

🧑‍💻 programmer

any particular blockchain you decided ?

Let's study solidity and python

If you can work on smart contract DM

Great

Full stack Dev going into blockchain, golang and JS and python. Want to find some coding buddies. I am located in NYC

Particularly ethereum, but can change

I am already a python programmer

ethereum i know a bit, but can explore more, Or can try solana this weekends?

Sure, but I need a path

solana ?

okay

Solana on what basis?

Path?

from start no background of Solana, i am free this weekends to learn solana.

import datetime
import hashlib
import json
from flask import Flask,jsonify

class Blockchain:
   def init(self):
       self.chain =[]
       self.create_block(proof=1,previous_hash='0')
       
   def create_block(self,proof,previous_hash):
       block={'index':len(self.chain)+1,
              'timestamp':str(datetime.datetime.now()),
              'proof':proof,
              'previous_hash':previous_hash}
       self.chain.append(block)
       return block

   def get_previous_block(self):
      return self.chain[-1]
 
   def proof_of_work(self,previous_proof):
       new_proof=1
       check_proof=False
       while check_proof is False:
           hash_operation=hashlib.sha256(str(new_proof**2-previous_proof**2).encode()).hexdigest()
           if hash_operation[:4]=='0000':
               check_proof=True
           else:
               new_proof +=1
           return new_proof      
           
   def hash(self,block):
       encoded_block=json.dumps(block,sort_keys=True).encode()
       return hashlib.sha256(encoded_block).hexdigest()
   def is_chain_valid(self,chain):
       previous_block=chain[0]
       block_index=1
       while block_index < len(chain):
           block=chain[block_index]
           if block['previous_hash'] != self.hash(previous_hash):
               return False
           previous_proof=previous_block['proof']
           proof=block['proof']
           hash_operation=hashlib.sha256(str(new_proof**2-previous_proof**2).encode()).hexdigest()
           if hash_operation[:4]=='0000':
                return False
           previous_block=block
           block_index +=1
           return True
       
app = Flask(name)

blockchain=Blockchain()
       
@app.route('/mine_block',method=['Get'])
def mine_block():
   previous_block=blockchain.get_previous_block()
   previous_proof=previous_block['proof']
   proof=blockchain.proof_of_work(previous_proof)
   previous_hash=blockchain.hash(previous_block)
   block=blockchain.create_block(proof,previous_hash)
   response ={'message':'Congrats you just mined a block!',
              'index':block['index'],
              'timestamp':block['timestamp'],
              'proof':block['proof'],
              'previous_hash':block['previous_hash']}
   return jsonify(response),200
   
   
@app.route('/get_chain',method=['Get'])
def get_chain():
           response ={'chain':blockchain.chain,
                      'legth':len(blockchain.chain)}
           return jsonify(response),200
           app.run(host='0.0.0.0',port=5000)

My first python project and am getting errors...anyone who can help

File "D:\anacondaa\lib\site-packages\flask\app.py", line 1275, in add_url_rule
   rule = self.url_rule_class(rule, methods=methods, **options)

TypeError: init() got an unexpected keyword argument 'method'