State explicitely that PYTHONDONTWRITEBYTECODE is equivalent to -B

diff --git a/Doc/using/cmdline.rst b/Doc/using/cmdline.rst
index 851c2ebab4c5fb97c0cb97ba6c3785650aa6d6d3..c73f1e0f3e8d1e39d676d731920286820bcf2935 100644 (file)
--- a/Doc/using/cmdline.rst
+++ b/Doc/using/cmdline.rst
@@ -453,7 +453,8 @@ These environment variables influence Python's behavior.
 .. envvar:: PYTHONDONTWRITEBYTECODE
 
    If this is set, Python won't try to write ``.pyc`` or ``.pyo`` files on the
-   import of source modules.
+   import of source modules.  This is equivalent to specifying the :option:`-B`
+   option.
 
 
 .. envvar:: PYTHONIOENCODING