Reputation: 41
Getting table from webpage: Problem getting full html
I need to get the table from this page: https://stats.nba.com/teams/traditional/?sort=GP&dir=-1. From the html of the page one can see that the table is encoded in the descendants of the tag
<nba-stat-table filters="filters" ... >
<div class="nba-stat-table">
<div class="nba-stat-table__overflow" data-fixed="2" role="grid">
<table>
...
</nba-stat-table>
(I cannot add a screenshot since I am new to stackoverflow but just doing: right click -> inspect element wherever in the table you will see what I mean).
I've tried some different ways such as the first and second answer to this question How to extract tables from websites in Python as well as those to this other question pandas read_html ValueError: No tables found (since trying the first solution I've got an error which is essentially this second question).
First try using pandas:
import requests
import pandas as pd
url = 'http://stats.nba.com/teams/traditional/?sort=GP&dir=-1'
html = requests.get(url).content
df_list = pd.read_html(html)
df = df_list[-1]
Or another try with BeautifulSoup:
import requests
from bs4 import BeautifulSoup
url = "https://stats.nba.com/teams/traditional/?sort=GP&dir=-1"
page = requests.get(url)
soup = BeautifulSoup(page.content, 'html.parser')
stats_table = soup.find('nba-stat-table')
for child in stats_table.descendants:
print(child)
For the first I got ''pandas read_html ValueError: No tables found'' error. For the second I didn't get any error but nothing showing. Then, I have tried to see on a file what was actually happening by doing:
with open('html.txt', 'w') as fout:
fout.write(str(page.content))
and/or:
with open('html.txt', 'w') as fout:
fout.write(str(soup))
and I get in the text file in the part of the html in which the table should be:
<nba-stat-table filters="filters"
ng-if="!isLoading && !noData"
options="options"
params="params"
rows="teamStats.rows"
template="teams/teams-traditional">
</nba-stat-table>
So it appears that I am not getting all the descendats of this tag which actually contains the information of the table. Then, does someone has a solution which obtains the whole html of the page and so it allows me for parsing it or instead an alternative solution to obtaining the table?
Upvotes: 0
Views: 360
Answers (2)
Reputation: 28565
Here's what I try when attempting to scrape data. (By the way I LOVE scraping/working with sports data.)
1) Pandas pd.read_html(). (beautifulSoup actually works under the hood here). I like this method as it's rather easy and quick. Usually only requires a small amount of manipulation if it does return what I want. The pandas' pd.read_html() only works if the data is within <table> tags though in the html. Since there are no <table> tags here, it will return what you stated as "ValueError: No tables found". So good work on trying that first, it's the easiest method when it works.
2) The other "go to" method I'll use, is then to see if the data is pulled through XHR. Actually, this might be my first choice as it can give you options of being able to filter what is returned, but requires a little more (not much) investigated work to find the correct request url and query parameter. (This is the route I went for this solution).
3) If it is generated through javascript, sometimes you can find the data in json format with <script> tags using BeautifulSoup. this requires a bit more investigation of pulling out the right <script> tag, then doing string manipulation to get the string in a valid json format to be able to use json.loads() to read in the data.
4a) Use BeautifulSoup to pull out the data elements if they are present in other tags and not rendered by javascript.
4b) Selenium is an option to allow the page to render first, then go into the html and parse with BeautifulSoup (in some cases allow Selenium to render and then could use pd.read_html() if it renders <table> tags), but is usually my last choice. It's not that it doesn't work or is bad, it just slow and unnecessary if any of the above choices work.
So I went with option 2. Here's the code and output:
import requests
import pandas as pd
url = 'https://stats.nba.com/stats/leaguedashteamstats'
headers = {'User-Agent': 'Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/77.0.3865.120 Mobile Safari/537.36'}
payload = {
'Conference': '',
'DateFrom': '',
'DateTo': '',
'Division': '',
'GameScope': '',
'GameSegment': '',
'LastNGames': '82',
'LeagueID': '00',
'Location': '',
'MeasureType': 'Base',
'Month': '0',
'OpponentTeamID': '0',
'Outcome': '',
'PORound': '0',
'PaceAdjust': 'N',
'PerMode': 'PerGame',
'Period': '0',
'PlayerExperience': '',
'PlayerPosition': '',
'PlusMinus': 'N',
'Rank': 'N',
'Season': '2019-20',
'SeasonSegment': '',
'SeasonType': 'Regular Season',
'ShotClockRange': '',
'StarterBench': '',
'TeamID': '0',
'TwoWay': '0',
'VsConference':'',
'VsDivision':'' }
jsonData = requests.get(url, headers=headers, params=payload).json()
df = pd.DataFrame(jsonData['resultSets'][0]['rowSet'], columns=jsonData['resultSets'][0]['headers'])
Output:
print (df.to_string())
TEAM_ID TEAM_NAME GP W L W_PCT MIN FGM FGA FG_PCT FG3M FG3A FG3_PCT FTM FTA FT_PCT OREB DREB REB AST TOV STL BLK BLKA PF PFD PTS PLUS_MINUS GP_RANK W_RANK L_RANK W_PCT_RANK MIN_RANK FGM_RANK FGA_RANK FG_PCT_RANK FG3M_RANK FG3A_RANK FG3_PCT_RANK FTM_RANK FTA_RANK FT_PCT_RANK OREB_RANK DREB_RANK REB_RANK AST_RANK TOV_RANK STL_RANK BLK_RANK BLKA_RANK PF_RANK PFD_RANK PTS_RANK PLUS_MINUS_RANK CFID CFPARAMS
0 1610612737 Atlanta Hawks 4 2 2 0.500 48.0 39.5 84.3 0.469 10.0 31.8 0.315 16.0 23.0 0.696 8.5 34.5 43.0 25.0 18.0 10.0 5.3 7.3 23.8 21.5 105.0 1.0 1 11 14 14 10 14 27 5 23 21 21 24 21 27 24 21 25 9 19 3 15 29 17 25 22 15 10 Atlanta Hawks
1 1610612738 Boston Celtics 3 2 1 0.667 48.0 39.0 97.3 0.401 11.7 35.0 0.333 18.0 26.3 0.684 14.7 33.0 47.7 21.0 11.3 9.3 6.3 5.7 25.0 29.3 107.7 5.0 19 11 4 11 10 18 3 28 13 12 18 19 12 28 2 25 13 22 1 7 7 19 20 1 16 10 10 Boston Celtics
2 1610612751 Brooklyn Nets 3 1 2 0.333 51.3 43.0 93.3 0.461 15.3 38.7 0.397 22.7 32.3 0.701 10.7 38.3 49.0 22.7 19.7 8.3 5.3 6.0 26.0 27.3 124.0 0.7 19 18 14 18 1 4 9 8 3 7 4 7 3 24 11 9 7 19 26 15 13 22 21 3 1 16 10 Brooklyn Nets
3 1610612766 Charlotte Hornets 4 1 3 0.250 48.0 38.3 86.5 0.442 14.8 36.8 0.401 14.3 19.8 0.722 10.0 31.5 41.5 24.3 19.3 5.3 4.0 6.5 22.5 21.8 105.5 -13.8 1 18 23 23 10 23 23 16 4 9 3 26 26 23 14 28 29 14 24 30 24 25 10 22 21 28 10 Charlotte Hornets
4 1610612741 Chicago Bulls 4 1 3 0.250 48.0 38.5 95.0 0.405 9.8 35.5 0.275 17.5 23.0 0.761 12.3 32.0 44.3 20.0 12.8 10.0 4.5 7.0 21.3 20.8 104.3 -6.0 1 18 23 23 10 20 6 27 24 11 29 20 21 15 7 26 24 26 2 3 20 27 7 26 24 23 10 Chicago Bulls
5 1610612739 Cleveland Cavaliers 3 1 2 0.333 48.0 39.3 89.3 0.440 10.7 34.7 0.308 13.0 18.7 0.696 10.7 38.0 48.7 20.7 15.7 6.3 4.0 4.7 19.0 19.3 102.3 -5.0 19 18 14 18 10 17 16 19 19 13 24 29 27 26 11 10 10 23 13 25 24 11 3 30 26 22 10 Cleveland Cavaliers
6 1610612742 Dallas Mavericks 4 3 1 0.750 48.0 39.5 86.8 0.455 12.8 40.8 0.313 23.0 31.0 0.742 9.8 36.0 45.8 24.0 13.0 6.8 5.0 2.8 19.3 27.0 114.8 4.0 1 1 4 4 10 14 21 10 8 5 22 5 4 19 17 15 21 15 3 19 19 1 4 7 10 12 10 Dallas Mavericks
7 1610612743 Denver Nuggets 4 3 1 0.750 49.3 37.3 90.5 0.412 11.5 31.8 0.362 19.8 24.3 0.814 13.0 35.5 48.5 22.0 14.3 8.0 5.5 4.5 22.8 23.8 105.8 3.3 1 1 4 4 4 27 13 25 14 21 11 13 20 7 4 19 11 20 7 16 11 9 13 14 20 13 10 Denver Nuggets
8 1610612765 Detroit Pistons 4 2 2 0.500 48.0 38.5 80.0 0.481 10.5 26.0 0.404 19.0 25.3 0.752 8.3 33.5 41.8 21.8 18.8 6.0 5.3 3.8 21.8 21.8 106.5 -3.0 1 11 14 14 10 20 29 3 20 28 2 15 15 17 26 24 28 21 21 27 15 4 9 22 18 21 10 Detroit Pistons
9 1610612744 Golden State Warriors 3 1 2 0.333 48.0 40.0 98.3 0.407 11.3 36.7 0.309 24.7 28.3 0.871 15.3 32.0 47.3 27.0 15.3 9.3 1.3 5.7 19.3 23.3 116.0 -12.0 19 18 14 18 10 10 2 26 15 10 23 3 8 2 1 26 14 4 10 7 30 19 5 17 9 27 10 Golden State Warriors
10 1610612745 Houston Rockets 3 2 1 0.667 48.0 38.3 91.3 0.420 13.0 45.7 0.285 28.0 34.0 0.824 9.3 38.0 47.3 24.3 15.7 6.3 5.3 5.0 23.7 28.0 117.7 0.3 19 11 4 11 10 22 11 23 6 3 27 1 1 5 21 10 14 12 13 25 13 15 15 2 8 18 10 Houston Rockets
11 1610612754 Indiana Pacers 3 0 3 0.000 48.0 39.7 90.0 0.441 8.0 23.3 0.343 13.7 16.7 0.820 9.7 29.3 39.0 24.3 13.3 8.7 4.3 5.3 23.7 19.7 101.0 -7.3 19 28 23 28 10 13 14 18 29 30 14 27 29 6 19 30 30 12 5 10 23 18 15 28 27 26 10 Indiana Pacers
12 1610612746 LA Clippers 4 3 1 0.750 48.0 43.0 82.8 0.520 13.0 32.0 0.406 22.5 28.5 0.789 8.3 34.0 42.3 25.0 17.0 8.5 5.5 3.3 26.3 25.5 121.5 9.0 1 1 4 4 10 4 28 1 6 19 1 8 7 11 26 22 26 9 18 11 11 2 23 10 3 3 10 LA Clippers
13 1610612747 Los Angeles Lakers 4 3 1 0.750 48.0 40.0 87.5 0.457 9.8 29.0 0.336 19.5 24.5 0.796 10.0 36.0 46.0 23.5 15.3 8.5 8.0 3.5 21.5 24.3 109.3 11.8 1 1 4 4 10 10 17 9 24 25 17 14 17 8 14 15 19 17 9 11 1 3 8 12 15 1 10 Los Angeles Lakers
14 1610612763 Memphis Grizzlies 4 1 3 0.250 49.3 39.5 95.3 0.415 9.0 32.0 0.281 19.0 24.5 0.776 11.3 36.5 47.8 24.8 18.8 9.0 6.5 7.0 27.0 23.8 107.0 -13.8 1 18 23 23 4 14 5 24 27 19 28 15 17 14 10 14 12 11 21 9 5 27 26 14 17 28 10 Memphis Grizzlies
15 1610612748 Miami Heat 4 3 1 0.750 49.3 40.3 86.0 0.468 12.8 32.3 0.395 24.8 33.8 0.733 9.8 39.0 48.8 23.8 22.5 8.5 6.5 4.8 27.0 27.3 118.0 8.0 1 1 4 4 4 9 25 6 8 17 5 2 2 20 17 6 9 16 30 11 5 12 26 6 7 6 10 Miami Heat
16 1610612749 Milwaukee Bucks 3 2 1 0.667 49.7 45.0 95.0 0.474 16.7 46.0 0.362 17.3 25.7 0.675 6.3 43.7 50.0 27.3 13.7 8.0 7.0 4.0 24.7 25.7 124.0 6.0 19 11 4 11 2 2 6 4 2 1 10 21 14 29 29 2 3 3 6 16 2 5 19 9 1 9 10 Milwaukee Bucks
17 1610612750 Minnesota Timberwolves 3 3 0 1.000 49.7 42.7 96.7 0.441 12.7 42.0 0.302 23.3 30.7 0.761 13.0 37.0 50.0 25.7 15.3 10.7 3.7 7.7 20.0 27.3 121.3 10.0 19 1 1 1 2 6 4 17 10 4 25 4 5 15 4 13 3 5 10 1 28 30 6 3 4 2 10 Minnesota Timberwolves
18 1610612740 New Orleans Pelicans 4 0 4 0.000 49.3 45.5 100.8 0.452 16.8 45.8 0.366 13.3 18.3 0.726 12.0 34.0 46.0 30.8 16.3 8.0 5.3 4.0 26.5 21.8 121.0 -7.3 1 28 29 28 4 1 1 13 1 2 8 28 28 21 8 22 19 1 17 16 15 5 25 22 5 24 10 New Orleans Pelicans
19 1610612752 New York Knicks 4 1 3 0.250 48.0 37.8 87.0 0.434 10.8 27.8 0.387 18.8 28.0 0.670 13.8 35.3 49.0 18.8 20.3 10.0 3.8 5.3 27.0 23.0 105.0 -7.3 1 18 23 23 10 24 19 20 17 27 6 17 10 30 3 20 7 27 27 3 27 17 26 18 22 24 10 New York Knicks
20 1610612760 Oklahoma City Thunder 4 1 3 0.250 48.0 37.5 84.5 0.444 10.8 29.3 0.368 17.3 24.8 0.697 9.5 40.3 49.8 18.8 18.5 6.8 4.5 4.8 23.5 22.8 103.0 1.8 1 18 23 23 10 25 26 15 17 23 7 22 16 25 20 3 5 27 20 19 20 12 14 19 25 14 10 Oklahoma City Thunder
21 1610612753 Orlando Magic 3 1 2 0.333 48.0 35.3 91.3 0.387 8.7 33.3 0.260 16.7 21.0 0.794 10.7 35.7 46.3 20.3 13.0 9.7 5.7 4.3 17.7 20.3 96.0 -1.3 19 18 14 18 10 28 11 30 28 16 30 23 25 9 11 18 17 24 3 6 9 8 1 27 29 20 10 Orlando Magic
22 1610612755 Philadelphia 76ers 3 3 0 1.000 48.0 38.7 86.7 0.446 10.3 34.7 0.298 22.0 30.3 0.725 10.0 39.7 49.7 25.3 20.3 10.7 7.0 4.0 29.7 27.3 109.7 7.3 19 1 1 1 10 19 22 14 22 13 26 11 6 22 14 5 6 7 29 1 2 5 29 3 14 7 10 Philadelphia 76ers
23 1610612756 Phoenix Suns 4 2 2 0.500 49.3 39.8 87.5 0.454 12.3 34.5 0.355 22.3 26.8 0.832 7.8 39.0 46.8 27.8 16.0 8.5 4.0 6.5 31.3 27.0 114.0 8.8 1 11 14 14 4 12 17 11 12 15 13 10 11 4 28 6 16 2 15 11 24 25 30 7 11 4 10 Phoenix Suns
24 1610612757 Portland Trail Blazers 4 2 2 0.500 48.0 41.5 89.8 0.462 9.3 28.3 0.327 21.0 24.5 0.857 8.5 37.8 46.3 17.0 15.5 6.8 5.3 4.5 26.3 22.5 113.3 0.3 1 11 14 14 10 7 15 7 26 26 20 12 17 3 24 12 18 30 12 19 15 9 23 20 12 19 10 Portland Trail Blazers
25 1610612758 Sacramento Kings 4 0 4 0.000 48.0 34.3 86.5 0.396 11.0 32.3 0.341 16.0 21.5 0.744 11.5 30.8 42.3 18.8 18.8 6.5 4.5 5.0 22.5 22.0 95.5 -19.5 1 28 29 28 10 30 23 29 16 17 15 24 24 18 9 29 26 27 21 23 20 15 10 21 30 30 10 Sacramento Kings
26 1610612759 San Antonio Spurs 3 3 0 1.000 48.0 44.3 92.0 0.482 8.0 23.7 0.338 22.3 28.3 0.788 12.7 38.7 51.3 25.3 16.0 5.7 7.0 5.7 18.7 24.7 119.0 4.7 19 1 1 1 10 3 10 2 29 29 16 9 8 12 6 8 2 7 15 29 2 19 2 11 6 11 10 San Antonio Spurs
27 1610612761 Toronto Raptors 4 3 1 0.750 49.3 37.5 87.0 0.431 14.3 39.3 0.363 22.8 25.8 0.883 9.3 44.3 53.5 22.8 20.3 6.8 5.8 6.3 24.3 24.0 112.0 8.8 1 1 4 4 4 25 19 22 5 6 9 6 13 1 22 1 1 18 27 19 8 24 18 13 13 4 10 Toronto Raptors
28 1610612762 Utah Jazz 4 3 1 0.750 48.0 35.0 77.3 0.453 10.5 29.3 0.359 18.3 23.0 0.793 5.5 39.8 45.3 20.3 19.5 6.5 3.3 4.8 26.0 23.5 98.8 7.3 1 1 4 4 10 29 30 12 20 23 12 18 21 10 30 4 22 25 25 23 29 12 21 16 28 8 10 Utah Jazz
29 1610612764 Washington Wizards 3 1 2 0.333 48.0 41.0 95.0 0.432 12.7 38.7 0.328 11.7 15.0 0.778 9.0 36.0 45.0 25.7 15.0 6.0 5.7 6.0 22.7 19.7 106.3 0.7 19 18 14 18 10 8 6 21 10 7 19 30 30 13 23 15 23 5 8 27 9 22 12 28 19 16 10 Washington Wizards
Upvotes: 1
Reputation: 324
Using Selenium will be the best way to do it. Then you can get the whole content which is rendered by javascript.
https://towardsdatascience.com/simple-web-scraping-with-pythons-selenium-4cedc52798cd
Upvotes: 0
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