import requests amazon_ipv4_url = "http://169.254.169.254/latest/meta-data/public-ipv4" if __name__ == "__main__": current_ip = requests.get(amazon_ipv4_url).text f = open("global_nodes.txt",r) peerList = [] for myline in f: mylist = myline.split(" ") ip = mylist[0] node = mylist[2] if node != "transaction": peerList.append(myline) else: h = open("isTransaction.txt",w) h.write("I am just a transaction generator node") h.close() f.close() g = open("global_peerlist.txt",w) for myline in peerList: g.write(myline) g.close()