cryptographic module hashlib

import hashlib 
m=hashlib.md5() 
#bytes must be of binary type 
passwd='nhy123' 
m.update(passwd.encode())#Cannot encrypt the string directly, first convert the string to bytes type 
print(m .hexdigest()) 
# print(m.__doc__)#See what method 
#md5 encryption is irreversible 
def my_md5(str): 
    new_str=str.encode()#Convert the string to bytes type 
    # new_str=b'% s'%str# Convert the string to bytes type 
    m=hashlib.md5()#Instantiate the MD5 object 
    m.update(new_str)#Encrypt 
    return m.hexdigest()#Get the result and return