Use new(er)-style string formatting, {} instead of {0}

1 files changed, 1 insertions, 1 deletions

diff --git a/tasks.py b/tasks.py
index 4ddeeee3..a45b4efc 100644
--- a/tasks.py
+++ b/tasks.py
@@ -21,7 +21,7 @@ def test(ctx, coverage=False, flags=""):
     env = dict(os.environ)
     if 'SSH_AUTH_SOCK' in env:
         del env['SSH_AUTH_SOCK']
-    cmd = "{0} test.py {1}".format(runner, flags)
+    cmd = "{} test.py {}".format(runner, flags)
     ctx.run(cmd, pty=True, env=env, replace_env=True)