tinyblock 0.2.0

安装

使用pip：

$ pip install tinyblock

块

dict({'previous_hash'(str):'...','timestamp'(int):'...','data'(any):'...','nonce'(int):'...','next_hash'(str):'...'})

用法

• 定义一个简单的区块链：

  fromtinyblockimporttinyblock#The initial variable should be a list of blocks. If not set it, the default chain would be an empty list.my_blockchain=tinyblock()

• 向链中添加块：

  #The parameter is the data of this blockmy_blockchain.add('This is a block.')

• 使用语句查找块：

  #Find the blocks with features below. The return elements will content the index in origin chain list.#Completely match: previous_hash, nonce, next_hash.#Partly match: data. (Currently support str, int, float, list, dict, bool and tuple)#Range match: timestamp.(Could be an int, list or tuple)my_blockchain.find(previous_hash='',timestamp='',data='',nonce='',next_hash='')

• 弹出链的最后一个区块：

  my_blockchain.pop()

• 检查区块链是否正确：

  my_blockchain.chainCheck(print_option=True)

• 修复区块链（带开始和停止索引）：

  my_blockchain.chainFix(start=0,stop=4)

• 获取阻止列表：

  my_blockchain.getChain()

• 自定义挖掘新块的规则：

  #The default rule is hash start with '0000'.#To change the rule, you can override the mineRule function.defnewRule(hash):ifhash[0:5]=='0'*5:returnTruereturnFalsemy_blockchain.mineRule=newRule