如何缩小lis中的数据范围

Question

我运行的python脚本有一个问题，该脚本试图从打印的输出中获取PyTrends（https://github.com/GeneralMills/pytrends/）上22个最热门的趋势主题之一。我试图创建一个从1到22的随机数，然后用它从pythonshell的第176-198行打印的22个结果中选择一个。你知道吗

import pytrends
import random


pytrend = TrendReq()
random = random.randint(1,22)
random = random + 99
itemList = list(pytrend.trending_searches())
Data = itemList.index(random) # This is one of the issue lines, as I cannot figure out how to index the output as needed.
Data = str(Data) 
Data = Data[1:21] # An attempt at indexing output
print (Data)

这是我在Shell上的输出：

    <bound method NDFrame.head of         date                                         exploreUrl  \
0   20180504  /trends/explore?q=Free+Comic+Book+Day&date=now...   
1   20180504  /trends/explore?q=Brad+Marchand&date=now+7-d&g...   
2   20180504  /trends/explore?q=jrue+holiday&date=now+7-d&ge...   
3   20180504  /trends/explore?q=Kentucky+Derby&date=now+7-d&...   
4   20180504  /trends/explore?q=Cinco+de+Mayo&date=now+7-d&g...   
5   20180504     /trends/explore?q=Warriors&date=now+7-d&geo=US   
6   20180504       /trends/explore?q=Bruins&date=now+7-d&geo=US   
7   20180504      /trends/explore?q=Rockets&date=now+7-d&geo=US   
8   20180504  /trends/explore?q=Matt+Harvey&date=now+7-d&geo=US   
9   20180504    /trends/explore?q=DJ+Khaled&date=now+7-d&geo=US   
10  20180504  /trends/explore?q=Matthew+Lawrence&date=now+7-...   
11  20180504   /trends/explore?q=junot+diaz&date=now+7-d&geo=US   
12  20180504  /trends/explore?q=nashville+predators&date=now...   
13  20180504  /trends/explore?q=albert+pujols&date=now+7-d&g...   
14  20180504  /trends/explore?q=indians+vs+yankees&date=now+...   
15  20180504  /trends/explore?q=zoe+saldana&date=now+7-d&geo=US   
16  20180504      /trends/explore?q=Rihanna&date=now+7-d&geo=US   
17  20180504  /trends/explore?q=Becky+Hammon&date=now+7-d&ge...   
18  20180504  /trends/explore?q=dte+outage+map&date=now+7-d&...   
19  20180504  /trends/explore?q=hawaii+news+now&date=now+7-d...   
20  20180504  /trends/explore?q=Colton+Haynes&date=now+7-d&g...   
21  20180504  /trends/explore?q=Audrey+Hepburn&date=now+7-d&...   
22  20180504  /trends/explore?q=Carol+Burnett&date=now+7-d&g...   

   formattedTraffic hotnessColor  hotnessLevel  \
0           20,000+      #f0a049           2.0   
1           20,000+      #f0a049           2.0   
2           20,000+      #f0a049           2.0   
3        2,000,000+      #d04108           5.0   
4        1,000,000+      #db601e           4.0   
5          500,000+      #db601e           4.0   
6          200,000+      #e68033           3.0   
7          200,000+      #e68033           3.0   
8          200,000+      #e68033           3.0   
9          200,000+      #e68033           3.0   
10         100,000+      #e68033           3.0   
11         100,000+      #e68033           3.0   
12         100,000+      #e68033           3.0   
13         100,000+      #e68033           3.0   
14         100,000+      #e68033           3.0   
15          50,000+      #f0a049           2.0   
16          50,000+      #f0a049           2.0   
17          50,000+      #f0a049           2.0   
18          50,000+      #f0a049           2.0   
19          50,000+      #f0a049           2.0   
20          50,000+      #f0a049           2.0   
21          50,000+      #f0a049           2.0   
22          50,000+      #f0a049           2.0   

                                           imgLinkUrl              imgSource  \
0   https://wtop.com/entertainment/2018/05/grab-fr...                   WTOP   
1   http://www.espn.com/nhl/story/_/id/23414142/nh...                   ESPN   
2   https://www.slamonline.com/nba/jrue-holiday-an...            SLAM Online   
3   https://www.nbcnews.com/business/business-news...            NBCNews.com   
4   https://www.nytimes.com/2018/05/05/business/ci...         New York Times   
5   https://www.goldenstateofmind.com/2018/5/5/173...   Golden State of Mind   
6   https://www.bostonglobe.com/sports/bruins/2018...       The Boston Globe   
7   http://www.espn.com/nba/story/_/id/23409022/ho...                   ESPN   
8   https://www.forbes.com/sites/tomvanriper/2018/...                 Forbes   
9   http://people.com/music/dj-khaled-2015-video-w...             PEOPLE.com   
10  https://www.goodhousekeeping.com/life/a2015507...   GoodHousekeeping.com   
11  https://www.washingtonpost.com/news/arts-and-e...        Washington Post   
12  https://www.tennessean.com/story/sports/nhl/pr...         The Tennessean   
13  https://www.cbssports.com/mlb/news/leaderboard...          CBSSports.com   
14  https://www.mlb.com/news/miguel-andujar-yankee...                MLB.com   
15  http://people.com/movies/mila-kunis-gets-emoti...             PEOPLE.com   
16          http://www.bbc.com/news/newsbeat-44000486               BBC News   
17  http://www.espn.com/nba/story/_/id/23407719/be...                   ESPN   
18  https://www.lansingstatejournal.com/story/news...  Lansing State Journal   
19  http://www.hawaiinewsnow.com/story/38110613/li...        Hawaii News Now   
20  http://people.com/tv/colton-haynes-denies-rumo...             PEOPLE.com   
21  http://people.com/movies/see-audrey-hepburn-in...             PEOPLE.com   
22  https://www.vanityfair.com/hollywood/2018/05/c...            Vanity Fair   

                                               imgUrl  \
0   //t1.gstatic.com/images?q=tbn:ANd9GcRgX9VkY3X0...   
1   //t2.gstatic.com/images?q=tbn:ANd9GcQNtvvQkzuu...   
2   //t1.gstatic.com/images?q=tbn:ANd9GcSWuoUKvQM1...   
3   //t0.gstatic.com/images?q=tbn:ANd9GcSvx53B96Jy...   
4   //t3.gstatic.com/images?q=tbn:ANd9GcS7m8935VXh...   
5   //t1.gstatic.com/images?q=tbn:ANd9GcQw4FYzAfaN...   
6   //t1.gstatic.com/images?q=tbn:ANd9GcQKEOxhee7r...   
7   //t1.gstatic.com/images?q=tbn:ANd9GcTMGOQfUc7u...   
8   //t3.gstatic.com/images?q=tbn:ANd9GcQrbRgWqQM-...   
9   //t3.gstatic.com/images?q=tbn:ANd9GcTH2gEcxXtQ...   
10  //t2.gstatic.com/images?q=tbn:ANd9GcQuOq7biu30...   
11  //t1.gstatic.com/images?q=tbn:ANd9GcQroHePQnEr...   
12  //t0.gstatic.com/images?q=tbn:ANd9GcSgdsziSLo-...   
13  //t1.gstatic.com/images?q=tbn:ANd9GcT8Z0CYLzOL...   
14  //t0.gstatic.com/images?q=tbn:ANd9GcQJUrmvZbvz...   
15  //t3.gstatic.com/images?q=tbn:ANd9GcSBQuX6A0c3...   
16  //t0.gstatic.com/images?q=tbn:ANd9GcQU6AztveLs...   
17  //t2.gstatic.com/images?q=tbn:ANd9GcQX6uw7bDSG...   
18  //t2.gstatic.com/images?q=tbn:ANd9GcTKzcn18NOd...   
19  //t1.gstatic.com/images?q=tbn:ANd9GcRSizKTqReb...   
20  //t1.gstatic.com/images?q=tbn:ANd9GcTjJAoEQ0A2...   
21  //t0.gstatic.com/images?q=tbn:ANd9GcRWzAeeA3c3...   
22  //t0.gstatic.com/images?q=tbn:ANd9GcTCjUox_o9U...   

                                     newsArticlesList  \
0   [{'title': 'Grab a freebie on <b>Free Comic Bo...   
1   [{'title': 'NHL to give <b>Brad Marchand</b> e...   
2   [{'title': 'Pelicans&#39; <b>Jrue Holiday</b>:...   
3   [{'title': '<b>Kentucky Derby</b> Field: No. 5...   
4   [{'title': 'What Is <b>Cinco de Mayo</b>?', 'l...   
5   [{'title': '<b>Warriors</b> deservedly get the...   
6   [{'title': 'Dan Girardi lifts Lightning over <...   
7   [{'title': '<b>Rockets</b> take 2-1 lead by bl...   
8   [{'title': '<b>Matt Harvey</b> And Mets Just C...   
9   [{'title': '<b>DJ Khaled</b> Faces Critics Aft...   
10  [{'title': '<b>Matthew Lawrence</b> Proposed t...   
11  [{'title': 'Pulitzer Prize-winning author <b>J...   
12  [{'title': '<b>Predators</b> coach Peter Lavio...   
13  [{'title': 'Leaderboarding: The astounding Hal...   
14  [{'title': 'Andujar walks off Yanks to 13th wi...   
15  [{'title': 'Mila Kunis Gets Emotional at BFF <...   
16  [{'title': '<b>Rihanna</b> opens up about her ...   
17  [{'title': 'Sources: Spurs assistant <b>Becky ...   
18  [{'title': 'Crews restoring power quickly afte...   
19  [{'title': 'LIST: Lava threat forces evacuatio...   
20  [{'title': '<b>Colton Haynes</b> Shuts Down Ru...   
21  [{'title': 'See <b>Audrey Hepburn</b> in Gorge...   
22  [{'title': '<b>Carol Burnett</b> Wants to Be L...   

                                  relatedSearchesList  safe  \
0                                                  []   1.0   
1                                                  []   1.0   
2                                                  []   1.0   
3   [{'query': 'Kentucky Derby 2018 horses', 'safe...   1.0   
4   [{'query': 'Cinco De Mayo 2018 Events', 'safe'...   1.0   
5   [{'query': 'Warriors Vs Pelicans', 'safe': Tru...   1.0   
6   [{'query': 'Boston Bruins', 'safe': True}, {'q...   1.0   
7        [{'query': 'Rockets Vs Jazz', 'safe': True}]   1.0   
8                                                  []   1.0   
9         [{'query': 'Dj Khaled Wife', 'safe': True}]   1.0   
10          [{'query': 'Cheryl Burke', 'safe': True}]   1.0   
11                                                 []   1.0   
12             [{'query': 'Predators', 'safe': True}]   1.0   
13                                                 []   1.0   
14                                                 []   1.0   
15                                                 []   1.0   
16                                                 []   1.0   
17                                                 []   1.0   
18                                                 []   1.0   
19                                                 []   1.0   
20                                                 []   1.0   
21                                                 []   1.0   
22                                                 []   1.0   

                                             shareUrl     startTime  \
0   https://www.google.com/trends/hottrends?stt=Fr...  1.525540e+09   
1   https://www.google.com/trends/hottrends?stt=Br...  1.525543e+09   
2   https://www.google.com/trends/hottrends?stt=Jr...  1.525532e+09   
3   https://www.google.com/trends/hottrends?stt=Ke...  1.525460e+09   
4   https://www.google.com/trends/hottrends?stt=Ci...  1.525453e+09   
5   https://www.google.com/trends/hottrends?stt=Wa...  1.525482e+09   
6   https://www.google.com/trends/hottrends?stt=Br...  1.525486e+09   
7   https://www.google.com/trends/hottrends?stt=Ro...  1.525493e+09   
8   https://www.google.com/trends/hottrends?stt=Ma...  1.525468e+09   
9   https://www.google.com/trends/hottrends?stt=DJ...  1.525475e+09   
10  https://www.google.com/trends/hottrends?stt=Ma...  1.525439e+09   
11  https://www.google.com/trends/hottrends?stt=Ju...  1.525457e+09   
12  https://www.google.com/trends/hottrends?stt=Na...  1.525435e+09   
13  https://www.google.com/trends/hottrends?stt=Al...  1.525439e+09   
14  https://www.google.com/trends/hottrends?stt=In...  1.525486e+09   
15  https://www.google.com/trends/hottrends?stt=Zo...  1.525446e+09   
16  https://www.google.com/trends/hottrends?stt=Ri...  1.525432e+09   
17  https://www.google.com/trends/hottrends?stt=Be...  1.525493e+09   
18  https://www.google.com/trends/hottrends?stt=Dt...  1.525468e+09   
19  https://www.google.com/trends/hottrends?stt=Ha...  1.525453e+09   
20  https://www.google.com/trends/hottrends?stt=Co...  1.525489e+09   
21  https://www.google.com/trends/hottrends?stt=Au...  1.525475e+09   
22  https://www.google.com/trends/hottrends?stt=Ca...  1.525478e+09   

                  title                                   titleLinkUrl  \
0   Free Comic Book Day  //www.google.com/search?q=Free+Comic+Book+Day   
1         Brad Marchand        //www.google.com/search?q=Brad+Marchand   
2          Jrue Holiday         //www.google.com/search?q=Jrue+Holiday   
3        Kentucky Derby       //www.google.com/search?q=Kentucky+Derby   
4         Cinco de Mayo        //www.google.com/search?q=Cinco+de+Mayo   
5              Warriors             //www.google.com/search?q=Warriors   
6                Bruins               //www.google.com/search?q=Bruins   
7               Rockets              //www.google.com/search?q=Rockets   
8           Matt Harvey          //www.google.com/search?q=Matt+Harvey   
9             DJ Khaled            //www.google.com/search?q=DJ+Khaled   
10     Matthew Lawrence     //www.google.com/search?q=Matthew+Lawrence   
11           Junot Diaz           //www.google.com/search?q=Junot+Diaz   
12  Nashville Predators  //www.google.com/search?q=Nashville+Predators   
13        Albert Pujols        //www.google.com/search?q=Albert+Pujols   
14   Indians Vs Yankees   //www.google.com/search?q=Indians+Vs+Yankees   
15          Zoe Saldana          //www.google.com/search?q=Zoe+Saldana   
16              Rihanna              //www.google.com/search?q=Rihanna   
17         Becky Hammon         //www.google.com/search?q=Becky+Hammon   
18       Dte Outage Map       //www.google.com/search?q=Dte+Outage+Map   
19      Hawaii News Now      //www.google.com/search?q=Hawaii+News+Now   
20        Colton Haynes        //www.google.com/search?q=Colton+Haynes   
21       Audrey Hepburn       //www.google.com/search?q=Audrey+Hepburn   
22        Carol Burnett        //www.google.com/search?q=Carol+Burnett   

    trafficBucketLowerBound  
0                   20000.0  
1                   20000.0  
2                   20000.0  
3                 2000000.0  
4                 1000000.0  
5                  500000.0  
6                  200000.0  
7                  200000.0  
8                  200000.0  
9                  200000.0  
10                 100000.0  
11                 100000.0  
12                 100000.0  
13                 100000.0  
14                 100000.0  
15                  50000.0  
16                  50000.0  
17                  50000.0  
18                  50000.0  
19                  50000.0  
20                  50000.0  
21                  50000.0  
22                  50000.0  >

Answer 1

pytrends返回一个数据帧作为输出。Pandas dataframes有各种有用的方法来进行子集设置和索引，所以当你调用list和str而不是原生方法时，你会得到一些奇怪的结果。你知道吗

要对数据帧进行随机采样，可以使用sample方法：

data.sample(n)

因此，要从请求中随机选择一行：

from pytrends.request import TrendReq

pytrend = TrendReq()

mydata = pytrend.trending_searches()
print(mydata.sample(1)) #or assign it, or get the required rows etc