Basic Pruning + Adding README

Author: SharmaMohit

BlockChain.py

@@ -23,42 +23,33 @@ def getCurrentBlock(self):
         currentBlock = self.chain[-1]
         return currentBlock
 
-    # def addNewBlock(self, sender, receiver, amount):
-    #     currentBlock = self.getCurrentBlock()
-    #     currTime = str(datetime.now())
-    #     newTransaction = Transaction(sender, receiver, amount, currTime)
-    #     newBlock = Block(currTime, newTransaction, currentBlock.currentHash)
-    #     newBlock.mineBlock(BlockChain.difficulty)
-    #     self.chain.append(newBlock)
-
     def minePendingTransactions(self, minerRewardAddress):
         currTime = str(datetime.now())
         newBlock = Block(currTime, self.pendingTransactions)
         newBlock.mineBlock(BlockChain.difficulty)
         self.chain.append(newBlock)
-        self.pendingTransactions = [Transaction(None, minerRewardAddress, self.miningReward)]
+        self.pendingTransactions = [Transaction(
+            None, minerRewardAddress, self.miningReward)]
 
     def addTransaction(self, newTransaction):
         self.pendingTransactions.append(newTransaction)
-    
 
     def getBalanceMiner(self, minerAddress):
-        balance = 0;
+        balance = 0
         for block in self.chain:
             for trans in block.transactions:
                 if trans.getSenderAddress() == minerAddress:
                     balance -= trans.amount
                 if trans.getReceiverAddress() == minerAddress:
                     balance += trans.amount
         return balance
-    
+
     def getAllTransaction(self):
         for trans in self.pendingTransactions:
             print(trans.getSenderAddress())
             print(trans.getReceiverAddress())
-            print(trans.getAmount(), "\n")            
+            print(trans.getAmount(), "\n")
 
-    
     def verifyIntegity(self):
         for i in range(1, len(self.chain)):
             prevBlock = self.chain[i-1]

HashGenerator.py

@@ -8,5 +8,3 @@
 def HashGenerator(input):
     result = hashlib.sha256(input.encode())
     return result.hexdigest()
-
-

Main.py

@@ -9,4 +9,4 @@
 bc.minePendingTransactions("Mohit")
 print(bc.getBalanceMiner("Mohit"))
 bc.minePendingTransactions("Mohit")
-print(bc.getBalanceMiner("Mohit"))
+print(bc.getBalanceMiner("Mohit"))

README.md

@@ -0,0 +1,15 @@
+<h1> Basic Implementation of Blockchain</h1>
+<h3> Still in progress </h3>
+
+<ol>
+    <li> Transaction Format (Done) </li>
+    <li> Hash Generaton (Done) </li>
+    <li> Block struture + slockchain Structure implementation </li>
+    <li> Key Generator (Incomplete).
+        <ul> 
+            <li> Code to implement generation of public key and private key. </li>
+            <li> Code to sign a transaction with user's private key. </li>
+            <li> Code to validate the sign with public key. <li>
+        </ul>
+    </li>
+</ol>

Transaction.py

@@ -15,10 +15,6 @@ def __init__(self, senderAddress, receiverAddress, amount):
     def createHash(self):
         return HashGenerator(self.senderAdress + self.receiverAddress + self.amount + self.txnDateTime)
 
-    # def signTransaction(self, signingKey):
-    #     hashTxn = self.createHash()
-    #     sign = signingKey.sign()
-
     def getSenderAddress(self):
         return self.senderAdress