i have json file that containd the metadata of 900 articles and i want to extract the Urls from it. my file start like this
[
{
"title": "The histologic phenotypes of …",
"authors": [
{
"name": "JE Armes"
},
],
"publisher": "Wiley Online Library",
"article_url": "https://onlinelibrary.wiley.com/doi/abs/10.1002/(SICI)1097-0142(19981201)83:11%3C2335::AID-CNCR13%3E3.0.CO;2-N",
"cites": 261,
"use": true
},
{
"title": "Comparative epidemiology of pemphigus in ...",
"authors": [
{
"name": "S Bastuji-Garin"
},
{
"name": "R Souissi"
}
],
"year": 1995,
"publisher": "search.ebscohost.com",
"article_url": "http://search.ebscohost.com/login.aspx?direct=true&profile=ehost&scope=site&authtype=crawler&jrnl=0022202X&AN=12612836&h=B9CC58JNdE8SYy4M4RyVS%2FrPdlkoZF%2FM5hifWcv%2FwFvGxUCbEaBxwQghRKlK2vLtwY2WrNNl%2B3z%2BiQawA%2BocoA%3D%3D&crl=c",
"use": true
},
.........
I want to inspect the file with objectpath
to create json.tree for the extraxtion of the url. this is the code i want to execute
1. import json
2. import objectpath
3. with open("Data_sample.json") as datafile: data = json.load(datafile)
4. jsonnn_tree = objectpath.Tree(data['name of data'])
5. result_tuple = tuple(jsonnn_tree.execute('$..article_url'))
But in the step 4 for the creation of the tree, I have to insert the name of the data whitch i think that i haven't in my file. How can i replace this line?
You can get all the article urls using a list comprehension.
import json
with open("Data_sample.json") as fh:
articles = json.load(fh)
article_urls = [article['article_url'] for article in articles]
You can instantiate the tree like this:
tobj = op.Tree(your_data)
results = tobj.execute("$.article_url")
And in the end:
results = [x for x in results]
will yield:
["url1", "url2", ...]
您是否尝试删除引用并仅使用:
jsonnn_tree = objectpath.Tree(data)
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.