Get rid of a bunch more raw_input references
diff --git a/Doc/lib/libsmtplib.tex b/Doc/lib/libsmtplib.tex
index 2f87bc4..ddf1764 100644
--- a/Doc/lib/libsmtplib.tex
+++ b/Doc/lib/libsmtplib.tex
@@ -267,6 +267,12 @@
 \begin{verbatim}
 import smtplib
 
+def raw_input(prompt):
+    import sys
+    sys.stdout.write(prompt)
+    sys.stdout.flush()
+    return sys.stdin.readline()
+
 def prompt(prompt):
     return raw_input(prompt).strip()