Online compiler for Python

http://www.learnpython.org/en/Modules_and_Packages

Packages for Python

Check out the full list of built-in modules in the Python standard library: 

https://docs.python.org/2/library/


Source: http://www.learnpython.org/en/Modules_and_Packages

To import a module, we use the import command. 

Parsing values from Json

12/5/16

http://stackoverflow.com/questions/2835559/parsing-values-from-a-json-file-in-python

[] are for lists, {} are for dictionaries.

Here's how your JSON file should look:

{
    "maps": [
        {
            "id": "blabla",
            "iscategorical": "0"
        },
        {
            "id": "blabla",
            "iscategorical": "0"
        }
    ],
    "masks": {
        "id": "valore"
    },
    "om_points": "value",
    "parameters": {
        "id": "valore"
    }
}

Then you can use your code:

import json
from pprint import pprint

with open('data.json') as data_file:    
    data = json.load(data_file)

pprint(data)

- With data, you can now also find values like so:

data["maps"][0]["id"] ...... here [0] because maps has values in [..]. If [0] not used it will throw string - int error.
data["masks"]["id"]
data["om_points"]

 

- How I can get the number of elements in node of JSON data?

Source: http://stackoverflow.com/questions/27315472/how-to-count-items-in-json-data

down voteaccepted

import json json_data = json.dumps({ "result":[ { "run":[ { "action":"stop" }, { "action":"start" }, { "action":"start" } ], "find": "true" } ] }) item_dict = json.loads(json_data) print len(item_dict['result'][0]['run']) Convert it in dict.

Python installations

https://www.python.org/downloads/release/python-352/  ---- 

Windows x86-64 web-based installer

http://www.pydev.org/manual_101_install.html

https://www.python.org/downloads/release/python-352/

http://www.jetbrains.com/pycharm/download/download-thanks.html?platform=windows&code=PCC

this is the editor

first one is python (like java)

2nd one is like escaplase

editor

 

In detail:

 

- Install windows version of python interpreter from the link https://www.python.org/downloads/release/python-352/

 

- Now after Interpreter is installed, you need editor or IDE to write python scripts. For this you can use "Pycharm" or "pydev" or you could also use just putty( or command prompt).

 

Link for pycharm: http://www.jetbrains.com/pycharm/download/download-thanks.html?platform=windows&code=PCC

 

pydev is the eclipse addin.

Link to pydev: http://www.pydev.org/manual_101_install.html

Wow. Huge improvements

Submitted by tim richardson on Fri, 2016-04-15 22:17

I normally use Pycharm but I decided to have a look at Pydev again in eclipse 4.5.2.
Wow. pydev is really good. Pycharm has lots of added value features like managing the python interpreter modules etc, but for coding and debugging pydev is good. It seems so much slicker now, good inspections, debugging, code completion.