Ex: str(), bin(), hex(), “, ‘, ”’, eval()

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# Demo of bin(), hex(), double quote, single quote, triple quote, eval
print('''We will now execute this line: ''')
print('''print("Example: str(), bin(), hex()," +'" double quote,'+" & "+ "' single quote")''')
print("Example: str(), bin(), hex()," +'" double quote,'+" & "+ "' single quote")
print ("\nInteger to Binary or Hex \n turn integer 255 in to binary 2555:")
x=255
print (str(x)+" becomes "+ bin(x))
print("\n...or into a hexidecimal string:")
x=255
print ("use hex(x) to find that the hex number 255 is: ",hex(x))
print("\nif the number to convert is 4660....")
print("the places in a 4 digit hex number are - left to right in 4660 are 4096s, 256s, 16s, 1s")
print("so Ox1234 means 1 ea 4096's, 2 ea 256's, 3 ea 16's and 4 ea 1's") #note use of " and '55
num4660 = "(1*4096) + (2*256) + (3*16) + (4*1)"
print(num4660 + " yeilds: ")
print(eval(num4660))

January 2, 2017 | wpjohn