pipetest.py to test mod-script-pipe's pipe.

First version in python (we used to use perl).

scripts/pipetest.py

@@ -0,0 +1,39 @@
+# pipetest.py
+# Tests the audacity pipe.  Sends 3 commands.
+# Keep pipetest.py short!!
+# You can make more complicated longer tests to test other functionality
+# or to generate screenshots etc in other scripts.
+
+
+toname = '\\\\.\\pipe\\ToSrvPipe'
+fromname = '\\\\.\\pipe\\FromSrvPipe'
+
+tofile = open( toname, 'wt' )
+fromfile = open( fromname, 'rt')
+
+def sendCommand( command ) :
+    print( "Send: "+command )
+    tofile.write( command + '\r\n\0' )
+    tofile.flush()
+
+def getResponse() :
+    result = ''
+    line = ''
+    while line != '\n' :
+        result += line
+        line = fromfile.readline()
+    return result
+
+def doCommand( command ) :
+    sendCommand( command )
+    response = getResponse()
+    print( "Rcvd: " + response )
+    return response
+
+def quickTest() :
+    doCommand( 'Help: CommandName=Help' )
+    doCommand( 'Help: CommandName=SetPreference' )
+    doCommand( 'SetPreference: PrefName=GUI/Theme PrefValue=light' )
+
+
+quickTest()