diff --git a/dtool/pptempl/PythonPackageInit.pp b/dtool/pptempl/PythonPackageInit.pp
index 871110d66e..3139392bde 100755
--- a/dtool/pptempl/PythonPackageInit.pp
+++ b/dtool/pptempl/PythonPackageInit.pp
@@ -99,23 +99,6 @@ else:
         # The source directory exists; therefore, we are in case (1b).
         __path__[0] = srcDir
 
-        def checkDirEnv(name, defaultPath):
-            """
-            If the environment variable already exists, do nothing.
-            If it is not set and defaultPath is a dir, set name to defaultPath.
-            """
-            if os.getenv(name) is None:
-                if os.path.isdir(defaultPath):
-                    os.environ[name]=defaultPath
-                    print "%s was not set, setting it to %s"%(name, os.getenv(name))
-
-        checkDirEnv("PANDA_ROOT", "c:/cygwin")
-        # checkDirEnv("PANDA_ROOT", "/usr/local/panda")
-        checkDirEnv("DMODELS", "c:/dmodels")
-        checkDirEnv("TTMODELS", "c:/ttmodels")
-        checkDirEnv("PMOCKUP", "c:/pmockup")
-        checkDirEnv("GWMODELS", "c:/gwmodels")
-        # checkDirEnv("TTMODELS", "~/ttmodels")
     else:
         # The source directory does not exist, so we must be in case
         # (2).  Leave well enough alone.