Python: Importing a variable inside of a infinite loop

I have two modules, a host and a scanner. Both loop indefinitely to communicate with the serial ports. I want to import the variable "bestchannel" from scanner into host but by importing it, the while loop inside scanner runs first and loops forever. I want each module to run separately but be able to send each other data in real time. Is this possible?

(outside of scanning ram)

Sample Code:

Host Loop----------------------------------------------
while True:
    ser.write( assemble("20","FF","FF","64","B") )
    sData = ser.read(100)
    if len(sData)>0:
        for i in range(0, len(sData)-17):
            if sData[i]==chr(1) and sData[i+1]==chr(20) and sData[i+2]==chr(int("A1", 16)):
                height = (ord(sData[i+开发者_如何学Go16])*256+ord(sData[i+17]))/100
                print "Sensor ", ord(sData[i+12]), " is returning height ",
                height, "mm. The minnoisechan:",minchannel

Scanner Loop----------------------------------------------
while True:
    ser.write( scan("FF", "FF", str(scanlength)) )  #Channel Mask, Length
    time.sleep(scanlength+2.0)
    sData = ser.read(100)
    if len(sData)>0:
        for i in range(0, len(sData)-16):
            if sData[i]==chr(1) and sData[i+1]==chr(23) and sData[i+2]==chr(int("C5", 16)):
                for j in range(0, 16):
                    chan[j] = sData[i+5+j]
                    print "channel: ",j+11,"=",ord(chan[j])
                    if ord(chan[j])<minvalue:
                        minvalue=ord(chan[j])
                        minchannel=j+11
                count+=1
                print "count",count,"minvalue:",minvalue,"minchannel:",minchannel
                minvalue=999

I want minchannel from scanner to be accessible to host.

sample code is in the link or down in the answer, sorry I had to use a different browser.

---

So again, if you haven't explored implementing your code using threads then I'd suggest that to get two loops to run at the same time. So something like this:

import threading
import Queue

def host(dataQueue):
    """
    Host code goes here.
    """
    # Check dataQueue for incoming data among other things...
    ....

def scanner(dataQueue):
    """
    Scanner code goes.
    """
    # Put data into dataQueue among other things...
    ....

if __name__ == 'main':
    dataQ = Queue.queue()
    hostThread = threading.Thread(target=host, name="Host", arg=(dataQ,))
    scannerThread = threading.Thread(target=scanner, name="Scanner", arg=(dataQ,))
    hostThread.start()
    scannerThread.start()

At the very least this will get you started running your two processes together. You still will need to figure out the thread management aspect of this.