From 6d848cfe64b43ee506624c709513045c7cb4abcc Mon Sep 17 00:00:00 2001 From: "Mr. Outis" Date: Tue, 23 Oct 2018 00:41:48 -0500 Subject: [PATCH] [fix] Check if set is empty before doing a _pop_ --- dvc/project.py | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/dvc/project.py b/dvc/project.py index 39f9e2211..bcb40e411 100644 --- a/dvc/project.py +++ b/dvc/project.py @@ -148,8 +148,8 @@ class Project(object): circular_dependencies = set(deps) & set(outs) - raise CircularDependencyError(circular_dependencies.pop()) - + if circular_dependencies: + raise CircularDependencyError(circular_dependencies.pop()) def add(self, fname, recursive=False): fnames = []