From 3f2a5634266b36a3f3a73c131ebe8cd384fdde81 Mon Sep 17 00:00:00 2001
From: Kenneth Reitz <me@kennethreitz.org>
Date: Thu, 26 Jan 2017 17:00:09 -0500
Subject: [PATCH] don't uninstall more packages

---
 Pipfile       | 6 +++---
 pipenv/cli.py | 9 ++++-----
 2 files changed, 7 insertions(+), 8 deletions(-)

diff --git a/Pipfile b/Pipfile
index 29eebd9e..9c92d182 100644
--- a/Pipfile
+++ b/Pipfile
@@ -1,3 +1,6 @@
+[dev-packages]
+pytest = "*"
+
 [packages]
 click = "*"
 crayons = "*"
@@ -7,6 +10,3 @@ requests = "*"
 requirements-parser = "*"
 parse = "*"
 "backports.shutil_get_terminal_size" = "*"
-
-[dev-packages]
-pytest = "*"
diff --git a/pipenv/cli.py b/pipenv/cli.py
index e73f2c28..6516d79b 100644
--- a/pipenv/cli.py
+++ b/pipenv/cli.py
@@ -385,11 +385,10 @@ def do_purge(bare=False, downloads=False, allow_global=False):
     installed = freeze.split()
 
     # Remove setuptools and friends from installed, if present.
-    for package_name in ['setuptools', 'pip', 'wheel', 'six']:
-        try:
-            installed.remove(package_name)
-        except ValueError:
-            pass
+    for package_name in ['setuptools', 'pip', 'wheel', 'six', 'packaging', 'pyparsing', 'appdirs']:
+        for i, package in enumerate(installed):
+            if package.startswith(package_name):
+                del installed[i]
 
     if not bare:
         click.echo('Found {0} installed package(s), purging...'.format(len(installed)))