I am writing code that will search twitter for key words and store them in a python dictionary:
base_url = 'http://search.twitter.com/search.json?rpp=100&q=4sq.com/'
query = '7bOHRP'
url_string = base_url + query
logging.info("url string = " + url_string)
json_text = fetch(url_string)
json_response = simplejson.loads(json_text.content)
result = json_response['results']
print "Contents"
print result
The resulting dictionary is :
Contents[{
u 'iso_language_code': u 'en',
u 'text': u "I'm at Cafe en Seine (40 Dawson Street, Dublin) w/ 2 others. http://4sq.com/7bOHRP",
u 'created_at': u 'Wed, 06 Oct 2010 23:37:02 +0000',
u 'profile_image_url': u 'http://a1.twimg.com/profile_images/573130785/twitterProfilePhoto_normal.jpg',
u 'source': u '<a href="http://foursquare.com" rel="nofollow">foursquare</a>',
u 'place': {
u 'type': u 'neighborhood',
u 'id': u '898cf727ca504e96',
u 'full_name': u 'Mansion House B, Dublin'
},
u 'from_user': u 'pkerssemakers',
u 'from_user_id': 60241195,
u 'to_user_id': None,
u 'geo': None,
u 'id': 26597357992,
u 'metadata': {
u 'result_type': u 'recent'
}
}]
Status: 200 OK
Content - Type: text / html;charset = utf - 8
Cache - Control: no - cache
Expires: Fri, 01 Jan 1990 00: 00: 00 GMT
Content - Length: 0
How can I access the 'from_user' and what is the 'u' before the key and value?
Switching to Python, bad news : dot notation is not directly available with the resulting dictionary.
The well-known, or I should say the traditional way to access a value in a dictionary is by referring to its key name, inside a square bracket. Notice that when you want to access the value of the key that doesn't exist in the dictionary will result in a KeyError.
result[0][u'from_user']
The u
prefix means that it's a unicode
instead of a str
.
You access the item ala
print Contents['from_user']
The 'u' in front of the string indicates that the string is uni-code.
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