For anything with requests to URLs you might want to check out [requests][1]. For JSON in particular:

    &gt;&gt;&gt; import requests
    &gt;&gt;&gt; r = requests.get(&#39;https://github.com/timeline.json&#39;)
    &gt;&gt;&gt; r.json()
    [{u&#39;repository&#39;: {u&#39;open_issues&#39;: 0, u&#39;url&#39;: &#39;https://github.com/...

  [1]: https://2.python-requests.org/en/latest/

Python&#39;s standard library has [`json`](http://docs.python.org/library/json.html) and [`urllib2`](http://docs.python.org/library/urllib2.html) modules.

    import json
    import urllib2
    
    data = json.load(urllib2.urlopen(&#39;http://someurl/path/to/json&#39;))

I have a click handler for a specific link, inside that I want to do something similar to the following:

    window.location = url

I need this to actually open the url in a new window though, how do I do this?

How can I open a link in a new window?

I need to be able to store small bits of data (approximately 50-75 bytes) for billions of records (~3 billion/month for a year).

The only requirement is fast inserts and fast lookups for all records with the same GUID and the ability to access the data store from .net.

I&#39;m a SQL server guy and I think SQL Server *can* do this, but with all the talk about BigTable, CouchDB, and other nosql solutions, it&#39;s sounding more and more like an alternative to a traditional RDBS may be best due to optimizations for distributed queries and scaling. I tried cassandra and the .net libraries don&#39;t currently compile or are all *subject to change* (along with cassandra itself).

I&#39;ve looked into many nosql data stores available, but can&#39;t find one that meets my needs as a robust production-ready platform. 

If you had to store 36 billion small, flat records so that they&#39;re accessible from .net, what would choose and why?

Best data store for billions of rows

I am trying to send a GET request to a URL that I know returns data in the form of JSON using python. 

I would like to know how to send this request to `http://someurl/path/to/json`, and how to parse it - preferably to a python dict.

How do I request and process JSON with python?

<p>I am trying to send a GET request to a URL that I know returns data in the form of JSON using python.</p>
<p>I would like to know how to send this request to <code>http://someurl/path/to/json</code>, and how to parse it - preferably to a python dict.</p>


I tried to install the Python package [dulwich](https://pypi.python.org/pypi/dulwich):

&lt;!-- language-all: lang-none --&gt;

    pip install dulwich

But I get a cryptic error message:

    error: Unable to find vcvarsall.bat

The same happens if I try installing the package manually:

    &gt; python setup.py install
    running build_ext
    building &#39;dulwich._objects&#39; extension
    error: Unable to find vcvarsall.bat

error: Unable to find vcvarsall.bat

The [`ConfigParser`][1] module raises an exception if one parses a simple Java-style **`.properties`**  file, whose content is key-value pairs (i..e without INI-style section headers). Is there some workaround?


  [1]: http://docs.python.org/2/library/configparser

parsing .properties file in Python

Is there a way to generate random letters in Python (like random.randint but for letters)? The range functionality of random.randint would be nice but having a generator that just outputs a random letter would be better than nothing.

Generate a random letter in Python

Having a simple Python class like this:

    class Spam(object):
        __init__(self, description, value):
            self.description = description
            self.value = value

I would like to check the following constraints:

 - &quot;description cannot be empty&quot;
 - &quot;value must be greater than zero&quot;
  

Should I:  
1. validate data before creating spam object ?  
2. check data on `__init__` method ?  
3. create an `is_valid` method  on Spam class and call it with spam.isValid() ?  
4. create an `is_valid` static method on Spam class and call it with Spam.isValid(description, value) ?  
5. check data on setters declaration ?  
6. etc. 

Could you recommend a well designed/Pythonic/not verbose (on class with many attributes)/elegant approach?





Correct approach to validate attributes of an instance of class

I need to determine the angle(s) between two n-dimensional vectors in Python. For example, the input can be two lists like the following: `[1,2,3,4]` and `[6,7,8,9]`.

Angles between two n-dimensional vectors in Python

I would like to send messages in the form of JSON objects to a server and parse the JSON response from the server.

Example of JSON object

    {
      &quot;post&quot;: {
        &quot;username&quot;: &quot;John Doe&quot;,
        &quot;message&quot;: &quot;test message&quot;,
        &quot;image&quot;: &quot;image url&quot;,
        &quot;time&quot;:  &quot;current time&quot;
      }
    }

I am trying to parse the JSON manually by going attribute by attribute. Is there any library/utility I can use to make this process easier?

Sending and Parsing JSON Objects in Android

I have this JSON in a file:


```json
{
    &quot;maps&quot;: [
        {
            &quot;id&quot;: &quot;blabla&quot;,
            &quot;iscategorical&quot;: &quot;0&quot;
        },
        {
            &quot;id&quot;: &quot;blabla&quot;,
            &quot;iscategorical&quot;: &quot;0&quot;
        }
    ],
    &quot;masks&quot;: [
        &quot;id&quot;: &quot;valore&quot;
    ],
    &quot;om_points&quot;: &quot;value&quot;,
    &quot;parameters&quot;: [
        &quot;id&quot;: &quot;valore&quot;
    ]
}
```

I wrote this script to print all of the JSON data:

```python
import json
from pprint import pprint

with open(&#39;data.json&#39;) as f:
    data = json.load(f)

pprint(data)
```

This program raises an exception, though:

```nonde
Traceback (most recent call last):
  File &quot;&lt;pyshell#1&gt;&quot;, line 5, in &lt;module&gt;
    data = json.load(f)
  File &quot;/usr/lib/python3.5/json/__init__.py&quot;, line 319, in loads
    return _default_decoder.decode(s)
  File &quot;/usr/lib/python3.5/json/decoder.py&quot;, line 339, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File &quot;/usr/lib/python3.5/json/decoder.py&quot;, line 355, in raw_decode
    obj, end = self.scan_once(s, idx)
json.decoder.JSONDecodeError: Expecting &#39;,&#39; delimiter: line 13 column 13 (char 213)
```

How can I parse the JSON and extract its values?

Why can&#39;t Python parse this JSON data?

I have an HttpResponse object for a web request I just made. The response is in the JSON format, so I need to parse it.  I can do it in an absurdly complex way, but it seems like there must be a better way.

Is this really the best I can do?

        HttpResponse response; // some response object
        Reader in = new BufferedReader(
            new InputStreamReader(response.getEntity().getContent(), &quot;UTF-8&quot;));
        StringBuilder builder= new StringBuilder();
        char[] buf = new char[1000];
        int l = 0;
        while (l &gt;= 0) {
            builder.append(buf, 0, l);
            l = in.read(buf);
        }
        JSONTokener tokener = new JSONTokener( builder.toString() );
        JSONArray finalResult = new JSONArray( tokener );

I&#39;m on Android if that makes any difference.

How do I parse JSON from a Java HTTPResponse?

I&#39;m trying to serialize using boost property tree write_json, it saves everything as strings, it&#39;s not that data are wrong, but I need to cast them explicitly every time and I want to use them somewhere else. (like in python or other C++ json (non boost) library)

here is some sample code and what I get depending on locale:

    boost::property_tree::ptree root, arr, elem1, elem2;
    elem1.put&lt;int&gt;(&quot;key0&quot;, 0);
    elem1.put&lt;bool&gt;(&quot;key1&quot;, true);
    elem2.put&lt;float&gt;(&quot;key2&quot;, 2.2f);
    elem2.put&lt;double&gt;(&quot;key3&quot;, 3.3);
    arr.push_back( std::make_pair(&quot;&quot;, elem1) );
    arr.push_back( std::make_pair(&quot;&quot;, elem2) );
    root.put_child(&quot;path1.path2&quot;, arr);
    
    std::stringstream ss;
    write_json(ss, root);
    std::string my_string_to_send_somewhare_else = ss.str();
    
and `my_string_to_send_somewhere_else` is sth. like this:
    
    {
        &quot;path1&quot; :
        {
           &quot;path2&quot; :
           [
                {
                     &quot;key0&quot; : &quot;0&quot;,
                     &quot;key1&quot; : &quot;true&quot;
                },
                {
                     &quot;key2&quot; : &quot;2.2&quot;,
                     &quot;key3&quot; : &quot;3.3&quot;
                }
           ]
        }
    }

Is there anyway to save them as the values, like:
`&quot;key1&quot; : true` or `&quot;key2&quot; : 2.2`?


Why does Boost property tree write_json save everything as string? Is it possible to change that?

What is the simplest C# function to parse a JSON string into a object and display it (C# XAML WPF)? (for example object with 2 arrays -  arrA and arrB) 

What is the simplest C# function to parse a JSON string into an object?

I want to send  the following JSON text 

    {&quot;Email&quot;:&quot;aaa@tbbb.com&quot;,&quot;Password&quot;:&quot;123456&quot;}

 to a web service and read the response. I know to how to read JSON. The problem is that the above JSON object must be sent in a variable name `jason`. 

How can I do this from android? What are the steps such as creating request object, setting content headers, etc.

How to send a JSON object over Request with Android?

I&#39;m fairly new to Java, so this may seem obvious to some. I&#39;ve worked a lot with ActionScript, which is very much event based and I love that. I recently tried to write a small bit of Java code that does a POST request, but I&#39;ve been faced with the problem that it&#39;s a synchronous request, so the code execution waits for the request to complete, time out or present an error.

How can I create an asynchronous request, where the code continues the execution and a callback is invoked when the HTTP request is complete? I&#39;ve glanced at threads, but I&#39;m thinking it&#39;s overkill.

How do you create an asynchronous HTTP request in JAVA?

I want to reduce load times on my websites by moving all cookies into local storage since they seem to have the same functionality. Are there any pros/cons (especially performance-wise) in using local storage to replace cookie functionality except for the obvious compatibility issues?

Local Storage vs Cookies

I am experiencing a request timeout from IIS when I run a long operation. Behind the scene my ASP.NET application is processing data, but the number of records being processed is large, and thus the operation is taking a long time. 

However, I think IIS times out the session. Is this a problem with IIS or ASP.NET session?


IIS Request Timeout on long ASP.NET operation

I need to get all the Django request headers. From what I&#39;ve read, Django simply dumps everything into the `request.META` variable along with a lot of other data. What would be the best way to get **all** the headers that the client sent to my Django application?

I&#39;m going use these to build a `httplib` request.

Content Type	Original Author	Original Content on Stackoverflow
Question	sa125	View Question on Stackoverflow
Solution 1 - Python	webjunkie	View Answer on Stackoverflow
Solution 2 - Python	SilentGhost	View Answer on Stackoverflow

How do I request and process JSON with python?

Python Problem Overview

Python Solutions

Solution 1 - Python

Solution 2 - Python

Best data store for billions of rows

How can I open a link in a new window?

Attributions