regex - Python using RE to find integer in text file in a for -

i'm writing bot in python using tweepy python 2.7. i'm stumped on how approach looking do. bot finds tweet id , appends text file. on later runs want use regex search file match , write if there no match within text file. intent not add duplicate tweet ids text file span large amount of numbers followed newline.

any appreciate!

/edit when try below code ide says match can't seen , syntax error result.

import re,codecs,tweepy qname = queue.txt tweets = api.search(q=searchquery,count=tweet_count,result_type="recent") codecs.open(qname,'a',encoding='utf-8') f:     tweet in tweets:         tweetid = tweet.id_str         match = re.findall(tweedid), qname)         #if match = false write, else discard , move on         f.write(tweetid + '\n') 

if correct,you need not bother regex etc. let special containers work you.i proceed non-duplicate-container dictionary or set e.g read data file dictionary or set , go extending id dictionary or set after write dictionary or set file.

e.g.

>>>data = set() >>>for in list('asddddddddddddfgggggg'):     data.add(i)  >>>data >>>set(['a', 's', 'd', 'g', 'f']) ## see 1 d , g