X-Git-Url: http://www.average.org/gitweb/?p=loctrkd.git;a=blobdiff_plain;f=loctrkd%2Fopencellid.py;h=20fd3ae1a2fc91723a2c5c211e5ad9971307a3c9;hp=a70dc26b2ae39c7e8a2b36a28304fa4837a9aedf;hb=58381e852f1aa2013f45de7757a55d01463befa2;hpb=c9f23958d20dfc6578b9f76706bd8b3e687389b0

diff --git a/loctrkd/opencellid.py b/loctrkd/opencellid.py
index a70dc26..20fd3ae 100644
--- a/loctrkd/opencellid.py
+++ b/loctrkd/opencellid.py
@@ -46,7 +46,7 @@ def lookup(
     lc.execute("""detach database mem""")
     lc.close()
     if not data:
-        return 0.0, 0.0
+        raise ValueError("No location data found in opencellid")
     sumsig = sum([1 / sig for _, _, sig in data])
     nsigs = [1 / sig / sumsig for _, _, sig in data]
     avlat = sum([lat * nsig for (lat, _, _), nsig in zip(data, nsigs)])