Do not use except: without specifying exception

except: catches all exceptions, including exceptions like unbound variables etc.
Instead specify only exceptions which can be thrown if database is corrupted
(array overflow, decode() failure). read() and seek() shouldn't throw an exception
if the file is open and accessible so these two exceptions seem to be enough.

pygeoip/__init__.py

@@ -243,7 +243,7 @@ class GeoIP(object):
                     if x[0] >= self._databaseSegments:
                         return x[0]
                     offset = x[0]
-        except:
+        except (IndexError, UnicodeDecodeError):
             pass
 
         raise GeoIPError('Corrupt database')