Capture parent node id when unique values found in combination - python-3.x

Question

I am looking to parse through this API response, :
<export_response xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://cakemarketing.com/api/4/">
<success>true</success>
<row_count>3</row_count>
<fruits>
<fruit>
<fruit_id>178</fruit_id>
<filters>
<filter>
<filter_id>231</filter_id>
<filter_type>
<filter_type_id>70</filter_type_id>
</filter_type>
<param_number xsi:nil="true"/>
<param_string>CA|NY|AZ</param_string>
<param_date xsi:nil="true"/>
<param_bool xsi:nil="true"/>
</filter>
<filter>
<filter_id>237</filter_id>
<filter_type>
<filter_type_id>90</filter_type_id>
</filter_type>
<param_number xsi:nil="true"/>
<param_string>Poor < 5</param_string>
<param_date xsi:nil="true"/>
<param_bool xsi:nil="true"/>
</filter>
</filters>
</fruit>
<fruit>
<fruit_id>178</fruit_id>
<filters>
<filter>
<filter_id>231</filter_id>
<filter_type>
<filter_type_id>70</filter_type_id>
</filter_type>
<param_number xsi:nil="true"/>
<param_string>CA|NY|AZ</param_string>
<param_date xsi:nil="true"/>
<param_bool xsi:nil="true"/>
</filter>
<filter>
<filter_id>237</filter_id>
<filter_type>
<filter_type_id>90</filter_type_id>
</filter_type>
<param_number xsi:nil="true"/>
<param_string>Poor < 5</param_string>
<param_date xsi:nil="true"/>
<param_bool xsi:nil="true"/>
</filter>
</filters>
</fruit>
<fruit>
<fruit_id>178</fruit_id>
<filters>
<filter>
<filter_id>231</filter_id>
<filter_type>
<filter_type_id>70</filter_type_id>
</filter_type>
<param_number xsi:nil="true"/>
<param_string>CA|NY|AZ</param_string>
<param_date xsi:nil="true"/>
<param_bool xsi:nil="true"/>
</filter>
<filter>
<filter_id>237</filter_id>
<filter_type>
<filter_type_id>90</filter_type_id>
</filter_type>
<param_number xsi:nil="true"/>
<param_string xsi:nil="true"/>
<param_date xsi:nil="true"/>
<param_bool xsi:nil="true"/>
</filter>
</filters>
</fruit>
</fruits>
</export_response>
The goal is to find the fruid_id when <param_string> inside equals 'Poor < 5' and 'CA|NY|AZ'. This should return fruit_id 176 and 178.
I've tried using findall() as well as .find(text='CA|NY|AZ Poor < 5') and I am not able to locate the correct fruit_ids.
Any sugguestions are welcome, thank you in advanced.

Answer 1

With bs4 4.7.1+ you can use a combination of :has and :contains, along with use of an adjacent sibling combinator (+) to specify the request pattern. By joining the patterns for both search terms with AND syntax, you select for only where both present. I assume you wanted the unique ids so used a set
from bs4 import BeautifulSoup as bs
xml = '''your xml goes here'''
soup = bs(xml, 'lxml')
unique_ids = {i.text for i in soup.select('fruit_id:has(+ filters param_string:contains("Poor < 5")):has(+ filters param_string:contains("CA|NY|AZ"))')}
print(unique_ids)

Answer 2

You don't actually have a 176, but nonetheless here's a way to capture the id and parameters to list, then you can test the list elements and operate on them as needed.
# data = your xml from above
soup = BeautifulSoup(data, "lxml")
for f in soup.find_all('fruit'):
test_list = []
test_list.append(f.fruit_id.text)
for ps in f.find_all('filter'):
test_list.append(ps.find('param_string').text)
print(test_list)
# do your validations here.....after each iteration
produces:
['178', 'CA|NY|AZ', 'Poor < 5']
['178', 'CA|NY|AZ', 'Poor < 5']
['178', 'CA|NY|AZ', '']