diff --git a/src/miranda.py b/src/miranda.py
index d443f5c..2df4179 100755
--- a/src/miranda.py
+++ b/src/miranda.py
@@ -39,19 +39,17 @@ def __init__(self, commands):
 
 	# Traverses the list of available commands
 	def traverse(self, tokens, tree):
-		retVal = []
+	    retVal = []
 
-		# If there are no commands, or no user input, return null
-		if tree is None or len(tokens) == 0:
-			retVal = []
-		# If there is only one word, only auto-complete the primary commands
-		elif len(tokens) == 1:
-			retVal = [x+' ' for x in tree if x.startswith(tokens[0])]
-		# Else auto-complete for the sub-commands
-		elif tokens[0] in tree.keys():
-			retVal = self.traverse(tokens[1:],tree[tokens[0]])
+	    	# If there are no commands, or no user input, return null
+	    if tree is None or len(tokens) == 0:
+	        retVal = []
+	    elif len(tokens) == 1:
+	        retVal = [f'{x} ' for x in tree if x.startswith(tokens[0])]
+	    elif tokens[0] in tree.keys():
+	    	retVal = self.traverse(tokens[1:],tree[tokens[0]])
 
-		return retVal
+	    return retVal
 
 	# Returns a list of possible commands that match the partial command that the user has entered
 	def complete(self, text, state):
@@ -182,23 +180,20 @@ def send(self,data,socket):
 
 	#Receive network data
 	def recv(self,size,socket):
-		if socket == False:
-			socket = self.ssock
+	    if socket == False:
+	    	socket = self.ssock
 
-		if self.TIMEOUT:
-			socket.setblocking(0)
-			ready = select.select([socket], [], [], self.TIMEOUT)[0]
-		else:
-			socket.setblocking(1)
-			ready = True
-	
-		try:	
-			if ready:
-				return socket.recv(size)
-			else:
-				return False
-		except:
-			return False
+	    if self.TIMEOUT:
+	    	socket.setblocking(0)
+	    	ready = select.select([socket], [], [], self.TIMEOUT)[0]
+	    else:
+	    	socket.setblocking(1)
+	    	ready = True
+
+	    try:	
+	        return socket.recv(size) if ready else False
+	    except:
+	    	return False
 
 	#Create new UDP socket on ip, bound to port
 	def createNewListener(self,ip,port):
@@ -225,39 +220,39 @@ def sender(self):
 
 	#Parse a URL, return the host and the page
 	def parseURL(self,url):
-		delim = '://'
-		host = False
-		page = False
+	    delim = '://'
+	    host = False
+	    page = False
 
-		#Split the host and page
-		try:
-			(host,page) = url.split(delim)[1].split('/',1)
-			page = '/' + page
-		except:
-			#If '://' is not in the url, then it's not a full URL, so assume that it's just a relative path
-			page = url
+	    	#Split the host and page
+	    try:
+	        (host,page) = url.split(delim)[1].split('/',1)
+	        page = f'/{page}'
+	    except:
+	    	#If '://' is not in the url, then it's not a full URL, so assume that it's just a relative path
+	    	page = url
 
-		return (host,page)
+	    return (host,page)
 
 	#Pull the name of the device type from a device type string
 	#The device type string looks like: 'urn:schemas-upnp-org:device:WANDevice:1'
 	def parseDeviceTypeName(self,string):
-		delim1 = 'device:'
-		delim2 = ':'
+	    delim1 = 'device:'
+	    if delim1 in string and not string.endswith(delim1):
+	        delim2 = ':'
 
-		if delim1 in string and not string.endswith(delim1):
-			return string.split(delim1)[1].split(delim2,1)[0]
-		return False
+	        return string.split(delim1)[1].split(delim2,1)[0]
+	    return False
 
 	#Pull the name of the service type from a service type string
 	#The service type string looks like: 'urn:schemas-upnp-org:service:Layer3Forwarding:1'
 	def parseServiceTypeName(self,string):
-		delim1 = 'service:'
-		delim2 = ':'
+	    delim1 = 'service:'
+	    if delim1 in string and not string.endswith(delim1):
+	        delim2 = ':'
 
-		if delim1 in string and not string.endswith(delim1):
-			return string.split(delim1)[1].split(delim2,1)[0]
-		return False
+	        return string.split(delim1)[1].split(delim2,1)[0]
+	    return False
 
 	#Pull the header info for the specified HTTP header - case insensitive
 	def parseHeader(self,data,header):
@@ -280,18 +275,18 @@ def parseHeader(self,data,header):
 
 	#Extract the contents of a single XML tag from the data
 	def extractSingleTag(self,data,tag):
-		startTag = "<%s" % tag
-		endTag = "</%s>" % tag
-
-		try:
-			tmp = data.split(startTag)[1]
-			index = tmp.find('>')
-			if index != -1:
-				index += 1
-				return tmp[index:].split(endTag)[0].strip()
-		except:
-			pass
-		return None
+	    startTag = f"<{tag}"
+	    endTag = f"</{tag}>"
+
+	    try:
+	    	tmp = data.split(startTag)[1]
+	    	index = tmp.find('>')
+	    	if index != -1:
+	    		index += 1
+	    		return tmp[index:].split(endTag)[0].strip()
+	    except:
+	    	pass
+	    return None
 
 	#Parses SSDP notify and reply packets, and populates the ENUM_HOSTS dict
 	def parseSSDPInfo(self,data,showUniq,verbose):
@@ -1649,10 +1644,7 @@ def parseCliOpts(argc,argv,hp):
 
 #Toggle boolean values
 def toggleVal(val):
-	if val:
-		return False
-	else:
-		return True
+    return not val
 
 #Prompt for user input
 def getUserInput(hp,shellPrompt):