From 3a82f965b6c1cb51202cb73d003fa0fccc7bc9e6 Mon Sep 17 00:00:00 2001
From: Kenneth Reitz <me@kennethreitz.org>
Date: Sat, 24 Feb 2018 08:09:12 -0500
Subject: [PATCH] improvements to pipenv clean

---
 pipenv/core.py | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/pipenv/core.py b/pipenv/core.py
index e8561257..7d87bc2c 100644
--- a/pipenv/core.py
+++ b/pipenv/core.py
@@ -1629,6 +1629,8 @@ def ensure_lockfile():
             )
 
             do_lock(pre=pre)
+    else:
+        do_lock(pre=pre)
 
 
 def do_py(system=False):
@@ -2302,11 +2304,7 @@ def do_clean(
     # Ensure that virtualenv is available.
     ensure_project(three=three, python=python, validate=False)
 
-    if not project.lockfile_exists:
-        click.echo(
-            '{0}: Could not find Pipfile.lock'.format(crayons.red('Warning'))
-        )
-        sys.exit(1)
+    ensure_lockfile()
 
     installed_packages = delegator.run(
         '{0} freeze'.format(which('pip'))