ip2 | Python Fiddle

#https://slideplayer.com/slide/4661011/
#https://slideplayer.com/slide/4661011/15/images/14/Classful+Networking+-+%3C1993.jpg

ip = "1.0.0.1"
ip="192.186.8.2"
ip = "10.3.6.7"

pr = ip.split(".")
p1 = int(pr[0])
p2 = int(pr[1])
p3 = int(pr[2])
p4 = int(pr[3])

ipclass = "IP Error"
ne=0
nm=0
nn=0
    
he=0
hm=0
hn=0

if (p1>=1 and p1<=127):
    ipclass="A+ (Public)"
    if (p1==10): ipclass="A- (Private)"
    subnet = "255.0.0.0"
    
    ne=8
    nm=2**ne
    nn=p1
    
    he=24
    hm=2**he
    hn = p2*(256**2) + p3*256 + p4
    
    
    
  
if (p1>=128 and p1<=191):
    ipclass="B+ (Public)"
    if (p1==172 and p2>=16 and p2<=31): ipclass = "B- (Private)"
    subnet = "255.255.0.0"
    
    ne=16
    nm=2**ne
    nn=p1*256 + p2 
    
    he=16
    hm=2**he
    hn = p3*256 + p4
 
if (p1>=192 and p1<=223):
    ipclass="C+ (Public)"
    if (p1==192 and p2==168): ipclass = "C- (Private)"
    subnet = "255.255.255.0"
    
    ne=24
    nm=2**ne
    nn=p1*(256**2) + p2*256 + p3 
    
    he=8
    hm=2**he
    hn=p4

if (p1>=224 and p1<=239):
    ipclass="D (Multicast)"

if (p1>=240 and p1<=255):
    ipclass="E (Experimental/Reserved)"

print("IP =" + ip )    
print("------------")
    
print("IP CLASS=" + ipclass)

if (ipclass[0] in "DE" or ipclass==""): exit()

print("Subnet Mask=" + subnet)
print("Classless Inter-Domain Routing (CIDR)= /" + str(ne))

print("-----------" )
print("Net:")
print("exponent=2^" + str(ne) )
print("Number=#" + str(nn) + " of")
print("Max=" + str(nm) )
print("-----------" )
print("Host:")
print("exponent=2^" + str(he) )
print("Number=#" + str(hn) + " of")
print("Max=" + str(hm) )
print("-----------" )

Python Fiddle

Python Cloud IDE