Whoops - Fix switchDateRange arguments, Add =None to all (primary) function arguments

I had the arguments for switchDateRange reversed, dateRange should be the second argument
Now our error checking ifs at the beginning of the main functions will detect if they're None and the Interperter shouldn't trackback when neglecting to add arguments

ebay.py

@@ -73,7 +73,7 @@ def setDateRange(days=None, start=None, rangeType=None):
     return {'from': today, 'to': future, 'type': rangeType}
 
 # We call this a couple times, so it gets its own function
-def switchDateRange(range=None, list=None):
+def switchDateRange(list=None, range=None):
     # Switch statement to check which type of dateRange to search by
     # This can be start/mod/end
     def rangeType(condition):
@@ -122,7 +122,7 @@ def switchDateRange(range=None, list=None):
 
 # minor logic checking - We don't want to get trackbacks for silly reasons
 # getSeller gets a list of our itemIDs
-def getSeller(api, list):
+def getSeller(api=None, list=None):
     # api is the connection to the Trading API
     # list is a dict containing required information for ebay to search for (http://developer.ebay.com/DevZone/XML/docs/Reference/ebay/GetSellerEvents.html)
     #   - The datapoints that MUST be defined are EndTimeFrom and EndTimeTo - These select the dateRange that items end on ebay
@@ -173,7 +173,7 @@ def getSeller(api, list):
     return res
 
 # getItems uses the list of ItemIDs provided by getSeller to get specific information about each ItemID
-def getItems(api, itemList, itemArgs={}):
+def getItems(api=None, itemList=None, itemArgs=None):
     # api is the connection to the Trading API
     # itemList is a dict containing ItemIDs and other info as a result of getSeller
     # itemArgs is an optional dict that contains extra details to refine the search returned by ebay (http://developer.ebay.com/DevZone/XML/docs/Reference/ebay/GetItem.html)
@@ -219,7 +219,7 @@ def getItems(api, itemList, itemArgs={}):
 
 # Use the modTime range and only return data for items that have been modified in the timerange
 # Args we want are the modTime and NewItemFilter=True to get only items that have changed in this timerange
-def checkRevisedItems(api, itemArgs={}, dateRange={}):
+def checkRevisedItems(api=None, itemArgs=None, dateRange=None):
     # api is the connection to the Trading API
     # itemList is a list containing itemIDs to check for updates
     # itemArgs is an optional dict that contains extra details to refine the search returned by ebay 
@@ -228,14 +228,14 @@ def checkRevisedItems(api, itemArgs={}, dateRange={}):
         res['error']['code'] = '1'
         res['error']['msg'] = 'api is not set'
         return res
-    if (itemList == None) | (isinstance(itemList, dict) != True):
-        res['error']['code'] = '2'
-        res['error']['msg'] = 'itemList doesn\'t exist or is of wrong type, must be list containing one or more dicts'
-        return res
     if (itemArgs == None) | (isinstance(itemArgs, dict) != True):
         res['error']['code'] = '2'
         res['error']['msg'] = 'itemArgs doesn\'t exist or is of wrong type, must be dict'
         return res
+    if (dateRange == None) | (isinstance(dateRange, dict) != True):
+        res['error']['code'] = '2'
+        res['error']['msg'] = 'dateRange doesn\'t exist or is of wrong type, must be dict'
+        return res
 
     itemArgs['NewItemFilter'] = 'True'
 
@@ -249,7 +249,7 @@ def checkRevisedItems(api, itemArgs={}, dateRange={}):
 
     
 # storeItems uses the dict of Items provided by getItems and stores the information we want 
-def storeItems(itemList):
+def storeItems(itemList=None):
     # itemList is the apiRequest value presented as a result of getItems 
     #   - This contains every item that matches getItems criteria with the ItemID as the key of further dicts
 
@@ -337,7 +337,7 @@ def storeItems(itemList):
     return res
 
 # Glue logic to run all the functions above properly
-def glue(api=None, sellerList={}, dateRange={}):
+def glue(api=None, sellerList=None, dateRange=None):
     # api is the connection to the api, this is passed to the functions as called
     # sellerList is the options that you can present ebay for searching (http://developer.ebay.com/DevZone/XML/docs/Reference/ebay/GetSellerEvents.html)
     # dateRange overrides EndTimeFrom and EndTimeTo from sellerList for ease of passing these required data with nothing else