aptdaemon might not always be awailable

argos-apt.py

@@ -11,7 +11,6 @@
 # <bitbar.dependencies>python,aptdaemon,apt</bitbar.dependencies>
 # <bitbar.abouturl>https://github.com/schtobia/argos-httping/blob/master/httping.py</bitbar.abouturl>
 
-from aptdaemon import client
 from apt import Cache
 import sys
 
@@ -28,8 +27,13 @@ class Themes:
     original = ["#acacac","#ff0101","#cc673b","#ce8458","#6bbb15","#0ed812"]
     selected_colors = red_green
 
-apt_client = client.AptClient()
-apt_client.update_cache(wait=True)
+try:
+    from aptdaemon import client
+    apt_client = client.AptClient()
+    apt_client.update_cache(wait=True)
+except ImportError as err:
+    print(str(err), file=sys.stderr)
+
 cache = Cache()
 cache.open()
 update_list = [pkg for pkg in cache if pkg.is_upgradable]