diff --git a/.gitignore b/.gitignore
index 19767b9..b010015 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,3 +7,6 @@
 
 # ignore downloaded apps
 *.apk
+
+config.py
+.DS_Store
diff --git a/__init__.py b/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/config.py b/config.py.sample
similarity index 100%
rename from config.py
rename to config.py.sample
diff --git a/download.py b/download.py
index 7a6ba42..bb190e4 100755
--- a/download.py
+++ b/download.py
@@ -36,6 +36,8 @@
 # Download
 print "Downloading %s..." % sizeof_fmt(doc.details.appDetails.installationSize),
 data = api.download(packagename, vc, ot)
-open(filename, "wb").write(data)
-print "Done"
-
+if data:
+	open(filename, "wb").write(data)
+	print "Done"
+else:
+	print "Error"
diff --git a/googleplay.py b/googleplay.py
index aba1e72..585adcd 100644
--- a/googleplay.py
+++ b/googleplay.py
@@ -127,7 +127,9 @@ def login(self, email=None, password=None, authSubToken=None):
             params = {}
             for d in data:
                 if not "=" in d: continue
-                k, v = d.split("=")
+                v_len = d.find('=') + 1
+                k = d.split("=")[0]
+                v = d[v_len:]
                 params[k.strip().lower()] = v.strip()
             if "auth" in params:
                 self.setAuthSubToken(params["auth"])
@@ -219,10 +221,11 @@ def browse(self, cat=None, ctr=None):
             path += "&cat=%s" % requests.utils.quote(cat)
         if (ctr != None):
             path += "&ctr=%s" % requests.utils.quote(ctr)
+
         message = self.executeRequestApi2(path)
         return message.payload.browseResponse
 
-    def list(self, cat, ctr=None, nb_results=None, offset=None):
+    def list(self, cat, ctr=None, nb_results=None, offset=None, ctntkn=None):
         """List apps.
 
         If ctr (subcategory ID) is None, returns a list of valid subcategories.
@@ -232,9 +235,12 @@ def list(self, cat, ctr=None, nb_results=None, offset=None):
         if (ctr != None):
             path += "&ctr=%s" % requests.utils.quote(ctr)
         if (nb_results != None):
-            path += "&n=%s" % requests.utils.quote(nb_results)
+            path += "&n=%s" % int(nb_results)
         if (offset != None):
-            path += "&o=%s" % requests.utils.quote(offset)
+            path += "&o=%s" % int(offset)
+        if (ctntkn != None):
+            path += "&ctntkn=%s" % requests.utils.quote(ctntkn)
+            
         message = self.executeRequestApi2(path)
         return message.payload.listResponse
     
@@ -264,8 +270,13 @@ def download(self, packageName, versionCode, offerType=1):
         message = self.executeRequestApi2(path, data)
 
         url = message.payload.buyResponse.purchaseStatusResponse.appDeliveryData.downloadUrl
-        cookie = message.payload.buyResponse.purchaseStatusResponse.appDeliveryData.downloadAuthCookie[0]
-
+        cookie = message.payload.buyResponse.purchaseStatusResponse.appDeliveryData.downloadAuthCookie
+        
+        if len(cookie) > 0:
+            cookie = cookie[0]
+        else:
+            return False
+            
         cookies = {
             str(cookie.name): str(cookie.value) # python-requests #459 fixes this
         }
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..c98fc6c
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,4 @@
+protobuf==3.0.0
+requests==2.10.0
+six==1.10.0
+wheel==0.24.0