diff --git a/doorUpdater.py b/doorUpdater.py
index 0bcd2f1..d7f3165 100644
--- a/doorUpdater.py
+++ b/doorUpdater.py
@@ -5,16 +5,19 @@ import urllib3
 
 from passwords import *
 
+# it's fine, ssl certs are for losers anyway
 urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)
 
 fieldnames = "CardNumber,CardFormat,PinRequired,PinCode,ExtendedAccess,ExpiryDate,Forename,Initial,Surname,Email,Phone,Custom1,Custom2,Schedule1,Schedule2,Schedule3,Schedule4,Schedule5,Schedule6,Schedule7,Schedule8".split(",")
 
+# mapping of member levels to schedules
 memberLevels = {"CMS Staff": "7x24",
                 "CMS Weekends Only": "Weekends Only",
                 "CMS Weekdays Only": "Weekdays Only",
                 "CMS Unlimited": "Unlimited",
                 "CMS Nights & Weekends": "Nights and Weekends"}
 
+# door access permissions to controller IP addresses
 doors = {
     "Rental Studio": ["172.18.51.11"],
     "Storage Closet": ["172.18.51.12"],
@@ -22,9 +25,12 @@ doors = {
     "Wood Shop": ["172.18.51.14", "172.18.51.15"]
 }
 
+
 def getMembershipworksData():
+    """ Pull the members csv from the membershipworks api """
     BASE_URL = "https://api.membershipworks.com/v1/"
 
+    # login
     sess = requests.Session()
     r = sess.post(BASE_URL + 'usr',
                  data={"_st": "all",
@@ -33,37 +39,41 @@ def getMembershipworksData():
                          "pwd": MEMBERSHIPWORKS_PASSWORD})
     SFtoken = r.json()['SF']
 
+    # get list of member/staff IDs
     r = sess.get(BASE_URL + "ylp",
                  params={"SF": SFtoken,
-                         "lbl": "5ae37979f033bfe8534f8799,5771675edcdf126302a2f6b9",
-                         "org": "15475",
+                         "lbl": "5ae37979f033bfe8534f8799,5771675edcdf126302a2f6b9", # members and staff
+                         "org": "15475", # unknown
                          "var": "_id,nam,ctc"})
     ids = [user['_id'] for user in r.json()['usr']]
 
+    # get members CSV
+    # TODO: maybe can just use previous get instead? would return JSON
     r = sess.post(BASE_URL + "csv",
                   params={"SF": SFtoken},
-                  data={"_rt": "946702800",
-                        "mux": "",
-                        "tid": ",".join(ids),
-                        "var": "lvl,xws,xms,xsc,xrs,xfd,xac,phn,eml,lbl,nam"})
+                  data={"_rt": "946702800", # unknown
+                        "mux": "", # unknown
+                        "tid": ",".join(ids), # ids of members to get
+                        "var": "lvl,xws,xms,xsc,xrs,xfd,xac,phn,eml,lbl,nam"}) # which columns to get
     return r.text
 
 
 def makeMember(member, doorAuth):
+    """Create an output CSV row for the member"""
     if member["Access Card Number"] == "":
         #print(member["First Name"], member["Last Name"], " has no card number, ignoring")
         return
 
     out = {"Forename": member["First Name"],
-              "Surname": member["Last Name"],
-              "Initial": "",
-              "CardNumber": member["Access Card Number"],
-              "CardFormat": "A901146A-241",
-              "PinRequired": "0",
-              "ExtendedAccess": "0",
-              "ExpiryDate": "",
-              "Email": member["Email"],
-              "Phone": member["Phone"]}
+           "Surname": member["Last Name"],
+           "Initial": "",
+           "CardNumber": member["Access Card Number"],
+           "CardFormat": "A901146A-241",
+           "PinRequired": "0",
+           "ExtendedAccess": "0",
+           "ExpiryDate": "",
+           "Email": member["Email"],
+           "Phone": member["Phone"]}
 
     if doorAuth:
         memberLevel = [v for k, v in memberLevels.items() if member[k] == k]
@@ -75,15 +85,18 @@ def makeMember(member, doorAuth):
     return out
 
 def doRequest(ip, params=None, files=None):
+    """Send a request to the door control import script"""
     r = requests.post(
         'https://' + ip + '/cgi-bin/import.cgi',
         params=params,
         files=files,
         auth=requests.auth.HTTPDigestAuth(DOOR_USERNAME, DOOR_PASSWORD),
-        verify=False)
+        verify=False) # ignore insecure SSL
     print(r.text)
 
 def updateDoor(doorIP, csv):
+    """Do the update import procedure on a door control"""
+
     doRequest(doorIP, {"task": "importInit"})
     doRequest(doorIP,
               {"task": "importCardsPeople", "name": "cardspeopleschedule.csv"},
@@ -91,6 +104,7 @@ def updateDoor(doorIP, csv):
     doRequest(doorIP, {"task": "importDone"})
 
 def makeDoor(doorName, doorIPs, members):
+    """Create a CSV for the given door"""
     outString = StringIO()
     writer = csv.DictWriter(outString, fieldnames)
     writer.writeheader()