pyttsx3 cuts off when run from py file

[duelistjp]

i'm using pyttsx3 on a raspberry pi running raspbian which is debian linux to read out the current time and date. this is a simple test of the module before i try implementing reading out a timer in a larger project but i'm already running into a curious issue. when i run the py file the voice is cut off partway through when it starts reading the minutes. the exact same lines copied into the interactive python shell run fine. I am running from bash and have no gui. why does it work one way but not the other? and how do i get it to read properly. the py file is below

import datetime
import pyttsx3
now=datetime.datetime.now()
datestring= "The Current time is " + str(now.hour) + " " +str(now.minute) + \
            " and " + str(now.second) + " seconds on " + str(now.month) + \
            " " + str(now.day) + " " + str(now.year)
engine=pyttsx3.init()
engine.setProperty('rate',100)
engine.setProperty('volume',1)
engine.say(datestring)
engine.runAndWait()
print(datestring)