better debugging

Signed-off-by: Kenneth Reitz <me@kennethreitz.org>
2026-06-05 22:50:18 +00:00 · 2018-03-09 09:53:50 -05:00
parent e025d4aa79
commit 5336e4317d
1 changed files with 9 additions and 1 deletions
@@ -176,7 +176,15 @@ class PyPIRepository(BaseRepository):
        except Exception:
            legacy_results = set()

-        return json_results | legacy_results
+        results = json_results | legacy_results
+
+        if not len(results):
+            raise ValueError(
+                'Your dependencies could not be resolved.\n'
+                'Please run "$ pipenv-resolver {0!r} --verbose" to debug.'.format(str(ireq.req))
+            )
+
+        return results

    def get_legacy_dependencies(self, ireq):
        """