python - BeautifulSoup does not returns all data

Question

I'm trying to parse some data for the moon phase today using Python's library BeautifulSoup.

from bs4 import BeautifulSoup
import urllib2

moon_url = "http://www.moongiant.com/phase/today/"


try:
    rqest =  urllib2.urlopen(moon_url)
    moon_Soup = BeautifulSoup(rqest, 'lxml')
    moon_angle = 0
    moon_illumination = 0
    main_data = moon_Soup.find('div', {'id' : 'moonDetails'})
    print main_data

except urllib2.URLError:
    print "Error"

But the output instead of this:

<div id="moonDetails">        
      Phase: <span>Waxing Crescent</span><br>Illumination: <span>36%
</span><br>Moon Age: <span>6.00 days</span><br>Moon Angle: <span>0.55</span><br>Moon Distance: <span>364,</span>434.78 km<br>Sun Angle: <span>0.53</span><br>Sun Distance: <span>149,</span>571,918.47 km<br>
</div>

Is only this:

<div id="moonDetails">
</div>

Any idea?

Answer 1

As stated by RaminNietzsche in the comments, you should extract the text of your script in this particular script tag. You can use regex or built-in methods (like split(), strip() and replace(), for example.

Code:

from bs4 import BeautifulSoup
import requests
import re
import json

moon_url = "http://www.moongiant.com/phase/today/"
html_source =  requests.get(moon_url).text

moon_soup = BeautifulSoup(html_source, 'html.parser')

data = moon_soup.find_all('script', {'type' : 'text/javascript'})

for d in data:
    d = d.text
    if 'var jArray=' in d:
        jArray = re.search('{(.*?)}', d).group()
        moon_data = json.loads(jArray)
        print(moon_data)

        #if you want mArray data too, you just have to:
        # 1. add `'var mArray=' in d` in the if clause, and
        # 2. uncomment the following lines
        #mArray = re.search('[+(.*?)];', d).group()
        #print(mArray)

Output:

{'3': ['<b>April 4</b>', '58%
', 'Sun Angle: 0.53291621763825', 'Sun Distance: 149657950.85286', 'Moon Distance: 369697.55153449', 'Moon Age: 8.1316595947356', 'Moon Angle: 0.53870564539409', 'Waxing Gibbous', 'April 4'], '2': ["<span style='color:#c7b699'><b>April 3</b></span>", 'Illumination: <span>47%
</span>', 'Sun Angle: <span>0.53', 'Sun Distance: <span>149,</span>614,</span>943.28', 'Moon Distance: <span>366,</span>585.35', 'Moon Age: <span>7.08', 'Moon Angle: <span>0.54', 'First Quarter', '<b>Monday, April 3, 2017</b>', 'April', 'Phase: <span>First Quarter</span>', 'April 3'], '1': ['<b>April 2</b>', '36%
', 'Sun Angle: 0.53322274612254', 'Sun Distance: 149571918.46739', 'Moon Distance: 364434.77975454', 'Moon Age: 6.002888839693', 'Moon Angle: 0.54648504798072', 'Waxing Crescent', 'April 2'], '4': ['<b>April 5</b>', '69%
', 'Sun Angle: 0.53276322269153', 'Sun Distance: 149700928.5008', 'Moon Distance: 373577.14506795', 'Moon Age: 9.1657967733025', 'Moon Angle: 0.53311119464703', 'Waxing Gibbous', 'April 5'], '0': ['<b>April 1</b>', '25%
', 'Sun Angle: 0.53337618944887', 'Sun Distance: 149528889.15122', 'Moon Distance: 363387.67496992', 'Moon Age: 4.9078487808877', 'Moon Angle: 0.54805974945761', 'Waxing Crescent', 'April 1']}

---

Since it's loaded as a JSON, you can navigate through it like this:

Example Code:

print(moon_data['4'])
print('-')*5
print(moon_data['4'][2])

Output:

['<b>April 5</b>', '69%
', 'Sun Angle: 0.53276322269153', 'Sun Distance: 149700928.5008', 'Moon Distance: 373577.14506795', 'Moon Age: 9.1657967733025', 'Moon Angle: 0.53311119464703', 'Waxing Gibbous', 'April 5']
-----
Sun Angle: 0.53276322269153