Nelfin fix 2229

pipenv/core.py

@@ -2564,14 +2564,13 @@ def do_clean(
     # Ensure that virtualenv is available.
     ensure_project(three=three, python=python, validate=False)
     ensure_lockfile()
-    installed_packages = filter(
-        None,
-        delegator.run('{0} freeze'.format(which_pip())).out.strip().split(
-            '\n'
-        ),
-    )
+
     installed_package_names = []
-    for installed in installed_packages:
+    pip_freeze_command = delegator.run('{0} freeze'.format(which_pip()))
+    for line in pip_freeze_command.out.split('\n'):
+        installed = line.strip()
+        if not installed or installed.startswith('#'):  # Comment or empty.
+            continue
         r = Requirement.from_line(installed).requirement
         # Ignore editable installations.
         if not r.editable:

tests/integration/test_cli.py

@@ -85,6 +85,26 @@ def test_pipenv_check(PipenvInstance, pypi):
         assert 'requests' in p.pipenv('check').out
 
 
+@pytest.mark.cli
+def test_pipenv_clean_pip_no_warnings(PipenvInstance):
+    with PipenvInstance(chdir=True) as p:
+        with open('setup.py', 'w') as f:
+            f.write('from setuptools import setup; setup(name="empty")')
+        p.pipenv('run pip install -e .')
+        assert p.pipenv('clean').out
+
+
+@pytest.mark.cli
+def test_pipenv_clean_pip_warnings(PipenvInstance):
+    with PipenvInstance(chdir=True) as p:
+        with open('setup.py', 'w') as f:
+            f.write('from setuptools import setup; setup(name="empty")')
+        # create a fake git repo to trigger a pip freeze warning
+        os.mkdir('.git')
+        p.pipenv('run pip install -e .')
+        assert p.pipenv('clean').out
+
+
 @pytest.mark.cli
 def test_venv_envs(PipenvInstance):
     with PipenvInstance() as p: