add datetime in name of output file to protect against erasement

.gitignore

 #### Twitter Credentials ####
 params/credentials.py
 #### tweets ####
-output/tweetoutput.jsonl
+output/tweetoutput.*
 #### Log ####
 log/collectweets.log
 #### libreoffice back up ####

collectTweets.py

@@ -16,6 +16,7 @@ import sys
 import logging
 from logging.handlers import RotatingFileHandler
 import pandas as pd
+import time
 
 
 def exitscript(logger, message):
@@ -100,7 +101,8 @@ if __name__ == '__main__':
     accounttofollowedlist = list(map(str, accounttofollowedlist))
 
     # Start a Twitter stream
-    tweetouputfilename = "output/tweetoutput.jsonl"
+    timestr = time.strftime("%Y%m%d-%H%M%S")
+    tweetouputfilename = "output/tweetoutput"+timestr+".jsonl"
     tweetoutput = open(tweetouputfilename, 'w')
     myStreamListener = Listener(tweetoutput, logger)
     stream = tweepy.Stream(auth=api.auth, listener=myStreamListener)