diff --git a/activity_map.py b/activity_map.py
index 7dd5375..b501c16 100755
--- a/activity_map.py
+++ b/activity_map.py
@@ -19,6 +19,7 @@
 import base64
 import logging
 import json
+import socket
 
 import urllib.request, urllib.error, urllib.parse
 
@@ -73,9 +74,9 @@ Parameters:
         }
 
         dump = json.dumps(station_info, separators=(',', ':'))
-        b64data = base64.urlsafe_b64encode(dump)
+        b64data = base64.urlsafe_b64encode(dump.encode('utf-8'))
 
-        url = self.__service_url + b64data
+        url = self.__service_url + b64data.decode('ascii')
 
         self.__logger.info("::: Odpytuję adres: " + url)
 
@@ -85,7 +86,7 @@ Parameters:
             webFile = urllib.request.urlopen(request, None, 5)
             response = webFile.read()
 
-            if response == 'OK':
+            if response == b'OK':
                 self.__logger.info("::: Dane wysłano, status OK\n")
             else:
                 log = "Non-OK response from %s, (%s)"
diff --git a/air_pollution_sq9atk.py b/air_pollution_sq9atk.py
index b5701f2..6d39a87 100755
--- a/air_pollution_sq9atk.py
+++ b/air_pollution_sq9atk.py
@@ -51,7 +51,7 @@ class AirPollutionSq9atk(SR0WXModule):
     def getSensorValue(self, sensorId):
         url = self.__service_url + self.__sensor_url + str(sensorId)
         data = self.getJson(url)
-        if data['values'][0]['value'] > 0: # czasem tu schodzi null
+        if data['values'][0]['value']: # czasem tu schodzi null
             value = data['values'][0]['value'] 
         else:
             value = data['values'][1]['value']
diff --git a/calendar_sq9atk.py b/calendar_sq9atk.py
index 438ec2e..df66b8e 100755
--- a/calendar_sq9atk.py
+++ b/calendar_sq9atk.py
@@ -29,11 +29,10 @@ class CalendarSq9atk(SR0WXModule):
             print(e)
         except socket.timeout:
             print("Timed out!")
-        return ""
 
     def getSunsetSunrise(self):
         self.__logger.info("::: Pobieram dane o wschodzie i zachodzie słońca")
-        r = re.compile(r'<h1>(.*)(\d\d:\d\d)(.*)(\d\d:\d\d)</h1>')
+        r = re.compile(rb'<h1>(.*)(\d\d:\d\d)(.*)(\d\d:\d\d)</h1>')
         url = self.__service_url+str(self.__city_id)
         html = self.downloadFile(url)
         matches = r.findall(html)
@@ -43,7 +42,7 @@ class CalendarSq9atk(SR0WXModule):
         }
 
     def hourToNumbers(self, time="00:00"):
-        datetime_object = datetime.strptime(time, '%H:%M')
+        datetime_object = datetime.strptime(time.decode('ascii'), '%H:%M')
         time_words = self.__language.read_datetime(datetime_object, '%H %M')
         return time_words
 
diff --git a/geo_magnetic_sq9atk.py b/geo_magnetic_sq9atk.py
index e957ffb..7e0c0b2 100755
--- a/geo_magnetic_sq9atk.py
+++ b/geo_magnetic_sq9atk.py
@@ -1,10 +1,9 @@
 #!/usr/bin/python -tt
 # -*- coding: utf-8 -*-
 
-import logging, re, subprocess
+import logging, re
 import urllib.request, urllib.error, urllib.parse
 import time
-from pprint import pprint
 
 from sr0wx_module import SR0WXModule
 
@@ -52,7 +51,7 @@ class GeoMagneticSq9atk(SR0WXModule):
         html = self.downloadDataFromUrl(self.__service_url)
 
         #r = re.compile(r'<div class="widget__value w_gm__value(.*?)">(\d)</div>')
-        r = re.compile(r'<div class="value item-(\d)(.*?)"><svg>(.*?)</svg>(\d)</div>')
+        r = re.compile(rb'<div class="value item-(\d)(.*?)"><svg>(.*?)</svg>(\d)</div>')
         
         return r.findall(html)
 
@@ -67,7 +66,7 @@ class GeoMagneticSq9atk(SR0WXModule):
             if dayNum > 1 or hour > current_hour-1: # omijamy godziny z przeszłości
                 if dayNum < 4 and i < 24:
                     value = data[i+1][3]
-                    output[dayNum][hour] = value
+                    output[dayNum][hour] = int(value)
 
             hour += 3
             if hour > 21:
@@ -95,13 +94,12 @@ class GeoMagneticSq9atk(SR0WXModule):
         values = self.getDataParsedHtmlData()
         daysValues = self.groupValuesByDays(values)
 
-        message = ' _ sytuacja_geomagnetyczna_w_regionie ';
+        message = ' _ sytuacja_geomagnetyczna_w_regionie '
 
         self.__logger.info("::: Przetwarzam dane...\n")
         for d, day in daysValues.items():
             
             if len(day) > 0:
-                a=1
                 message += " _ "+self.__days[d-1] + " "
                 condition = self.getStrongestConditionOfDay(day)
                 
diff --git a/radioactive_sq9atk.py b/radioactive_sq9atk.py
index 21f67db..5897d54 100755
--- a/radioactive_sq9atk.py
+++ b/radioactive_sq9atk.py
@@ -2,12 +2,9 @@
 # -*- coding: utf-8 -*-
 
 import urllib.request, urllib.error, urllib.parse
-import re
 import logging
-import pytz
 import socket
 
-from datetime import datetime
 from sr0wx_module import SR0WXModule
 
 class RadioactiveSq9atk(SR0WXModule):
@@ -62,9 +59,10 @@ class RadioactiveSq9atk(SR0WXModule):
         return {"current":current, "average": average}
   
     def getSensorData(self, html):
-        dataArr = html.split("L.marker([")
+        dataArr = html.split(b"L.marker([")
         ret = {}
         for row in dataArr:
+            row = row.decode('utf-8')
             if self.isSensorRow(row):
                 if self.isSensorMatchedById(self.__sensor_id, row):
                     ret = self.extractSensorData(row)
diff --git a/vhf_tropo_sq9atk.py b/vhf_tropo_sq9atk.py
index 4500a96..5229b4d 100755
--- a/vhf_tropo_sq9atk.py
+++ b/vhf_tropo_sq9atk.py
@@ -45,7 +45,7 @@ class VhfTropoSq9atk(SR0WXModule):
             return None
 
     def findMapUrlInHtml(self, html, target_id):
-        pattern = r'<img\s+(?:[^>]*\s+)?id="' + re.escape(target_id) + r'"(?:[^>]*)\s+src="([^"]+)"'
+        pattern = rb'<img\s+(?:[^>]*\s+)?id="' + re.escape(target_id).encode('ascii') + rb'"(?:[^>]*)\s+src="([^"]+)"'
         match = re.search(pattern, html, re.IGNORECASE)
         if match:
             mapUrl = match.group(1)
@@ -55,7 +55,7 @@ class VhfTropoSq9atk(SR0WXModule):
 
     def downloadMapFile(self, mapUrl, targetFileName):
         try:
-            self.__logger.info("::: Odpytuję adres: " + mapUrl)
+            self.__logger.info("::: Odpytuję adres: " + mapUrl.decode('utf-8'))
             response = requests.get(mapUrl, timeout=30)
 
             with open(targetFileName, "wb") as mapFile: