CC Password Door Attempt

password = "space"
maxTries = 5
numFails = 0
local oldPullEvent = os.pullEvent
os.pullEvent = os.pullEventRaw
function checkPassword()
    term.clear()
    term.setCursorPos(1,1)
    print("Password?")
    answer = read("*")
    if answer == password then
        numfails = 0
        return true
    else
        numfails = numfails + 1
        return false
end
while true do
    term.clear()
    term.setCursorPos(1,1)
    print("Yes?")
    print("Open")
    print("Close")
    input = io.read()
    if input == "Open" then
        if checkPassword() == true then
            rs.setOutput("left",true)
        else
            term.clear()
            term.setCursorPos(1,1)
            print("Incorrect")
            if numFails < maxTries then
                sleep(2)
            else
                print("Try again later")
                sleep(30)
            end
        end
    elseif input == "Close" then
        rs.setOutput("left",false)
    elseif input == "out" then
        break
    else
        print("Invalid Entry")
    end
end