Describe -E (which was added to 2.2a2).

464e75b8 · Guido van Rossum · 2d742ae7 · 464e75b8
Commit 464e75b8 authored Sep 05, 2001 by Guido van Rossum
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@@ -221,6 +221,13 @@ Core
  to a dictionary object.  Getting func.__dict__ before any attributes
  have been assigned now returns an empty dictionary instead of None.
+- A new command line option, -E, was added which disables the use of
+  all environment variables, or at least those that are specifically
+  significant to Python.  Usually those have a name starting with
+  "PYTHON".  This was used to fix a problem where the tests fail if
+  the user happens to have PYTHONHOME or PYTHONPATH pointing to an
+  older distribution.
 Library
 - New class Differ and new functions ndiff() and restore() in difflib.py.