adding a quick python nmap example

python/python_nmap.py

@@ -0,0 +1,32 @@
+#!/usr/bin/python
+# Author: Omar Santos @santosomar
+# version 1.0
+# This is a quick demonstration on how to use the python nmap library
+#   * Pre-requisite: nmap python library.
+#   * Install it with pip install python-nmap
+#####################################################################
+
+import sys
+try:
+    import nmap
+except:
+    sys.exit("[!] It looks like the nmap library is not installed in your system. You can install it with: pip install python-nmap")
+
+# The arguments to be processed
+if len(sys.argv) != 3:
+    sys.exit("Please provide two arguments the first being the targets the second the ports")
+addr = str(sys.argv[1])
+port = str(sys.argv[2])
+
+# the scanner part
+
+my_scanner = nmap.PortScanner()
+my_scanner.scan(addr, port)
+for host in my_scanner.all_hosts():
+    if not my_scanner[host].hostname():
+        print("Not able to find the hostname for IP address %s") % (host)
+    else:
+        print("The hostname for IP address %s is %s") % (host, my_scanner[host].hostname())
+
+#this prints the results of the scan in a csv file.
+print(my_scanner.csv())