Pythonを使ってTwitterで検索をかける

TwitterSearch.py

#coding: UTF-8
from requests_oauthlib import OAuth1Session
import json
import os
import sys, time, calendar

#twitterのapiを使用する際の認証
CONSUMER_KEY = "〜〜〜"
CONSUMER_SECRET = "〜〜〜"
ACCESS_TOKEN = "〜〜〜"
ACCESS_TOKEN_SECRET = "〜〜〜"

#検索履歴保存テキスト
search_history_path='search_history.txt'
#検索ワード
searchText=u"サッカー"

#過去の検索情報を取得
json_dict={}
if os.path.isfile(search_history_path):
    f = open(search_history_path, 'r')
    json_dict = json.load(f)

#過去のどのIDまで検索したか取得
searchId=json_dict.get(searchText, 0)

#twitter認証
twitter = OAuth1Session(CONSUMER_KEY, CONSUMER_SECRET, ACCESS_TOKEN, ACCESS_TOKEN_SECRET)

#検索
tweets=""
params = {
    "q": searchText,
    "lang": "ja",
    "result_type": "recent",
    "count": "1",
    "tweet_mode":"extended",
    "since_id": searchId
}
req = twitter.get("https://api.twitter.com/1.1/search/tweets.json?", params = params)
tweets = json.loads(req.text)

tid=""
result=""
for tweet in tweets["statuses"]:
    #検索したidを取得
    tid = tweet["id_str"]
    #日本時間を計算
    time_utc = time.strptime(tweet["created_at"], '%a %b %d %H:%M:%S +0000 %Y')
    unix_time = calendar.timegm(time_utc)
    time_local = time.localtime(unix_time)
    japan_time = time.strftime("%Y-%m-%d %H:%M:%S", time_local)
    result=result + japan_time + "\n"
    #名前とidの取得
    result=result + tweet["user"]["name"] + ":" +tweet["user"]["screen_name"] + "\n"
    #テキストの取得
    result=result + tweet["full_text"] + "\n"
    #画像データのURLの取得
    if tweet.has_key("retweeted_status"):
        retweeted_status = tweet['retweeted_status']
        if retweeted_status.has_key("extended_entities"):
            media_list = retweeted_status['extended_entities']['media']
            for media in media_list:
                result=result + media["media_url"] + "\n"
    if tweet.has_key("extended_entities"):
        media_list = tweet['extended_entities']['media']
        for media in media_list:
            result=result + media["media_url"] + "\n"
#検索結果を表示
print result

#検索したidを保存
if tid != "":
    json_dict[searchText]=tid
    json_str=json.dumps(json_dict, ensure_ascii=False, encoding='utf8')
    f2 = open(search_history_path, 'w')
    f2.write(json_str.encode('utf-8'))