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-rw-r--r--Lib/idlelib/README.txt5
1 files changed, 5 insertions, 0 deletions
diff --git a/Lib/idlelib/README.txt b/Lib/idlelib/README.txt
index df0b7b8..101f7eb 100644
--- a/Lib/idlelib/README.txt
+++ b/Lib/idlelib/README.txt
@@ -21,6 +21,11 @@ This enhancement has often been requested, and is now finally available. The
magic "reload/import *" incantations are no longer required when editing and
testing a module two or three steps down the import chain.
+(Personal firewall software may warn about the connection IDLE makes to its
+subprocess using this computer's internal loopback interface. This connection
+is not visible on any external interface and no data is sent to or received
+from the Internet.)
+
It is possible to interrupt tightly looping user code, even on Windows.
Applications which cannot support subprocesses and/or sockets can still run