Алексей Черемисин

package my.com;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Comparator;
import java.util.List;
import java.util.Set;
import java.util.TreeSet;

public class Paths {
	public static void main(String[] args) {
		String str = "A1, A1\\BB1\\CCC1, A2\\BB1, A2\\BB1\\CCC1";
		ArrayList<String> paths = new ArrayList<String>(Arrays.asList(str.split(",")));

		System.out.println("======  Беган =======");
		System.out.println("Было");
		for(String i:paths){
			System.out.println(i);
		}
		
		Set<String> out = new TreeSet<String>(new Comparator<String>() {

			@Override
			public int compare(String o1, String o2) {
				return o2.compareTo(o1);
			}
			
		});
		for(String i : paths) {
			ArrayList<String> path = new ArrayList<String>(Arrays.asList(i.trim().split("\\\\")));
	
			for(int j = 1; j <= path.size(); j++) {
				List<String> s = path.subList(0, j);
				out.add(String.join("\\",s));
			}
		}

		System.out.println("=================");
		System.out.println("Сортировка туда");
		for(String i:out) {
			System.out.println(i);
		}

		System.out.println("=================");
		System.out.println("Сортировка обратно");
		Set<String> out1 = new TreeSet<String>();
		out1.addAll(out);
		for(String i:out1) {
			System.out.println(i);
		}
		System.out.println("======= Доне ======");
		
	}
}

======  Беган =======
Было
A1
 A1\BB1\CCC1
 A2\BB1
 A2\BB1\CCC1
=================
Сортировка туда
A2\BB1\CCC1
A2\BB1
A2
A1\BB1\CCC1
A1\BB1
A1
=================
Сортировка обратно
A1
A1\BB1
A1\BB1\CCC1
A2
A2\BB1
A2\BB1\CCC1
======= Доне ======

from flask import jsonify

# Begin AJAX requests
@cart.route("/api/total")
def total():
    count = 0
    if "cart" in session:
        cart = session.get("cart")
        l = [int(i) for i in redis.hvals(getCartKey(cart))]
        count = sum(l)
        logger.debug('cart %s : %d', cart, count)
    data = calculateItems()
    data.pop("products")
    return jsonify(dict(count=count, **data))

"""Creates a :class:`~flask.Response` with the JSON representation of
the given arguments with an `application/json` mimetype. The arguments
to this function are the same as to the :class:`dict` constructor.

Example usage::

from flask import jsonify

@app.route('/_get_current_user')
def get_current_user():
return jsonify(username=g.user.username,
email=g.user.email,
id=g.user.id)

This will send a JSON response like this to the browser::

{
"username": "admin",
"email": "admin@localhost",
"id": 42
}

For security reasons only objects are supported toplevel. For more
information about this, have a look at :ref:`json-security`.

This function's response will be pretty printed if it was not requested
with ``X-Requested-With: XMLHttpRequest`` to simplify debugging unless
the ``JSONIFY_PRETTYPRINT_REGULAR`` config parameter is set to false.

.. versionadded:: 0.2
"""