Ran fine for me in pycharm. I just pasted your code and ran in the console without issue.
On Tue, Dec 19, 2017 at 12:04 PM, Ashish Yadav <[email protected]> wrote: > Below is the python code which i am trying to run on Spyder, but getting > an error. > > I have downloaded that code from Internet . Please help me . > > Error-* TypeError: encoding without a string argument* > > > *import hashlib as hasher* > > *class Block:* > * def __init__(self, index, timestamp, data, previous_hash):* > * self.index = index* > * self.timestamp = timestamp* > * self.data = data* > * self.previous_hash = previous_hash* > * self.hash = self.hash_block()* > > * def hash_block(self):* > * sha = hasher.sha256()* > * sha.update(str(self.index) + * > * str(self.timestamp) + * > * str(self.data) + * > * str(self.previous_hash))* > *# return hashlib.sha256(str(msg).encode('utf-8')).hexdigest()* > * return sha.hexdigest()* > > > *import datetime as date* > > *def create_genesis_block():* > * # Manually construct a block with* > * # index zero and arbitrary previous hash* > * return Block(0, date.datetime.now(), "Genesis Block", "0")* > > *def next_block(last_block):* > * this_index = last_block.index + 1* > * this_timestamp = date.datetime.now()* > * this_data = "Hey! I'm block " + str(this_index)* > * this_hash = last_block.hash* > * return Block(this_index, this_timestamp, this_data, this_hash)* > > *# Create the blockchain and add the genesis block* > *blockchain = [create_genesis_block()]* > *previous_block = blockchain[0]* > > *# How many blocks should we add to the chain* > *# after the genesis block* > *num_of_blocks_to_add = 5* > > *# Add blocks to the chain* > *for i in range(0, num_of_blocks_to_add):* > * block_to_add = next_block(previous_block)* > * blockchain.append(block_to_add)* > * previous_block = block_to_add* > * # Tell everyone about it!* > * print ("Block #{} has been added to the > blockchain!".format(block_to_add.index))* > * print ("Hash: {}\n".format(block_to_add.hash))* > > > Thanks > Ashish > > -- > You received this message because you are subscribed to the Google Groups > "Python Programming for Autodesk Maya" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit https://groups.google.com/d/ > msgid/python_inside_maya/30dd09eb-6888-4835-b845- > bc221d5846dc%40googlegroups.com > <https://groups.google.com/d/msgid/python_inside_maya/30dd09eb-6888-4835-b845-bc221d5846dc%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- Russel Rehmund [email protected] www.the3daddict.com -- You received this message because you are subscribed to the Google Groups "Python Programming for Autodesk Maya" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/python_inside_maya/CABGnDPQLE7ShieULKO-LTqqTjcTtKuYbWBPNfXzHSVgvKWmj2A%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
