Find specific dictionary element without looping
Tag : python , By : user121501
Date : March 29 2020, 07:55 AM
this one helps. Your data structure doesn't support O(1) lookups, so you still have to loop through it: any(d['Name'] == 'Dave' for d in dicts)
from collections import defaultdict
total = defaultdict(set)
for d in dicts:
for key, value in d.items():
total[key].add(value)
'Dave' in total['Name']
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looping through element of XDocument and getting specific attributes
Tag : chash , By : micate
Date : March 29 2020, 07:55 AM
I wish this helpful for you You want to use XElement.Elements() to iterate through all child elements of your requests element, then use XElement.Attribute(XName name) to fetch the specified attribute by name. You might also consider explicitly casting your XAttribute to a string rather than using the Value property, as the former will return null on a missing attribute rather than generating a null reference exception. var propertiesRequested = XDocument.Parse(propertiesConfiguration);
var requests = propertiesRequested.Element("ModuleRequests");
foreach (var request in requests.Elements())
{
var propertyValue = (string)request.Attribute("Id");
if (systemProperties.ContainsKey(propertyValue) == false)
{
systemProperties.Add(propertyValue, (string)request.Attribute("Request"));
}
}
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Use XPATH to locate a specific element and then move forward from that element to locate the next table in the tree
Tag : html , By : Vasiliy
Date : March 29 2020, 07:55 AM
hope this fix your issue For your HTML, adjusted to be well-formed XML, and formatted for ease of reading: <html>
<div>
<p>maybe some words</p>
</div>
<div/>
<div>
<font>PICKLES are selling well</font>
</div>
<div>
<p>maybe some words</p>
<table>
<tr>
<td>123</td>
</tr>
</table>
</div>
</html>
//font[contains(text(),"PICKLES")]/following::table[1]
for e in test_tree.xpath(('//font[contains(text(),"PICKLES")]'):
e_text = e.text_content() #to illustrate that I can do something with this element
my_table = e.xpath('./following::table[1]')[0] #while only one table is found a list is returned with the table as the only element of the list
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Looping through list of single-element tuple yields different result than looping through multi-element tuple
Date : March 29 2020, 07:55 AM
this will help I have sqlite queries that output lists of tuples. I'm running into a situation that I don't understand why looping through a list of single-element tuples yields a different output compared to looping through a list of multi-element tuples. Take the following lists as an example: , You are not comparing apple to apple. In [8]: for item in list1:
...: print(item)
('value1',)
('value2',)
In [9]: for item in list2:
...: print(item)
('value1', 'value1')
('value2', 'value2')
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PHP - get specific element form each sub array without looping
Tag : php , By : platformNomad
Date : March 29 2020, 07:55 AM
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