Merge lp:~jelmer/brz/launchpadlib-error into lp:brz

[Jelmer Vernooij]

Add clearer error when launchpadlib is missing.

Add clearer error when launchpadlib is missing.

[Martin Packman (gz)]

Thanks!

review: Approve

=== modified file 'breezy/plugins/launchpad/lp_api.py'
--- breezy/plugins/launchpad/lp_api.py	2019-01-28 21:00:58 +0000
+++ breezy/plugins/launchpad/lp_api.py	2019-02-14 19:09:45 +0000
@@ -45,10 +45,20 @@
     )
 from ...i18n import gettext
 
+
+class LaunchpadlibMissing(errors.DependencyNotPresent):
+
+    _fmt = ("launchpadlib is required for Launchpad API access. "
+            "Please install the launchpadlib package.")
+
+    def __init__(self, e):
+        super(LaunchpadlibMissing, self).__init__(
+            'launchpadlib', e)
+
 try:
     import launchpadlib
 except ImportError as e:
-    raise errors.DependencyNotPresent('launchpadlib', e)
+    raise LaunchpadlibMissing(e)
 
 from launchpadlib.launchpad import (
     Launchpad,