Extensions have a content security policy (CSP) applied to them by default. You have no objects for which to compare. In fact, the foundational unit in json is the "Object", which is defined as { : }. The JSON string follows the format provided by --generate-cli-skeleton. This resulted in dictionaries using 20% to 25% less memory when compared to Python 3.5. Learn JavaScript Learn jQuery Learn React Learn AngularJS Learn JSON Learn AJAX Learn AppML Learn W3.JS Programming Learn Python Learn Java Learn C Learn C++ Learn C# Learn R Learn Kotlin Learn Go Learn Django Learn Dictionaries are used to store data values in key:value pairs. Select Dictionaries. It is easy for humans to read and write. JSON grew out of a need for a stateless, real-time server-to-browser communication protocol without using browser plugins such as Flash or Java applets, the dominant methods used in the early 2000s.. A precursor to the JSON libraries was used in a children's digital asset trading game project named Cartoon Orbit at Communities.com (at which State Software's co-founders had JSON (JavaScript Object Notation) is a lightweight data-interchange format. As you can see, it is very similar to a python dictionary and is made up of key-value pairs. An important difference, however, is that while Python dictionaries may use anything hashable as a key, in JSON all the keys must be strings. It is easy for humans to read and write. For 1M rows, .json_normalize is 47 times faster than .apply. Create a Json file and use json.dump() method to convert python objects into appropriate JSON objects. As a sidenote to @Navaneethan 's answer, Jinja2 is able to do "regular" item selections for the list and the dictionary, given we know the key of the dictionary, or the locations of items in the list. The default policy restricts the sources from which extensions can load code (such as