revert r69777 since all the experts agree that extra import lines distract from the code

Doc/howto/doanddont.rst

@@ -267,8 +267,7 @@ sequence with comparable semantics, for example, yet many people write their own
 :func:`max`/:func:`min`. Another highly useful function is :func:`reduce`. A
 classical use of :func:`reduce` is something like ::
 
-   import operator
-   import sys
+   import sys, operator
    nums = map(float, sys.argv[1:])
    print reduce(operator.add, nums)/len(nums)
 

Doc/howto/webservers.rst

@@ -99,8 +99,7 @@ simple CGI program::
     # -*- coding: UTF-8 -*-
 
     # enable debugging
-    import cgitb
-    cgitb.enable()
+    import cgitb; cgitb.enable()
 
     print "Content-Type: text/plain;charset=utf-8"
     print
@@ -280,9 +279,7 @@ following WSGI-application::
     # -*- coding: UTF-8 -*-
 
     from cgi import escape
-    import os
-    import sys
-
+    import sys, os
     from flup.server.fcgi import WSGIServer
 
     def app(environ, start_response):