Parsing DeepDiff result
<p>I am working with <a href="http://deepdiff.readthedocs.io/en/latest/" rel="nofollow">DeepDiff</a>. So I have results like:</p>

<pre><code>local =  [{1: {'age': 50, 'name': 'foo'}}, {2: {'age': 90, 'name': 'bar'}}, {3: {'age': 60, 'name': 'foobar'}}]
online = [{1: {'age': 50, 'name': 'foo'}}, {2: {'age': 40, 'name': 'bar'}}]
ddiff = DeepDiff(local, online)
added, updated = ddiff['iterable_item_added'], ddiff['values_changed']
added = {'root[2]': {3: {'age': 60, 'name': 'foobar'}}}
updated = {"root[1][2]['age']": {'new_value': 90, 'old_value': 40}}
</code></pre>

<p>Now, I want to take:</p>

<pre><code>list_indexes_added = foo(added)
list_indexes_updated = foo(updated)
</code></pre>

<p>and to obtain:</p>

<pre><code>list_indexes_added = [2]
list_index_updated = [(1,2,'age')]
</code></pre>

<p>in this way, I can manipulate the list <code>local</code> and <code>online</code> and in the future update the <code>online</code> table.</p>

<p>I am thinking in regexs, but maybe there is other option.</p>

<p>This is what I did:</p>

<pre><code>def getFromSquareBrackets(s):
    return re.findall(r"\['?([A-Za-z0-9_]+)'?\]", s)

def auxparse(e):
    try:
        e = int(e)
    except:
        pass
    return e

def castInts(l):
    return list((map(auxparse, l)))

def parseRoots(dics):
    """
        Returns pos id for list.
        Because we have formmatted [{id:{dic}}, {id:{dic}}]
    """
    values = []
    for d in dics:
        values.append(castInts(getFromSquareBrackets(d)))
    return values
</code></pre>

<p>So:</p>

<pre><code>parseRoots({"root[1][2]['age']": {'new_value': 90, 'old_value': 40}})
[[1, 2, 'age']]
</code></pre>

<p>Maybe someone can improve it.</p>

python regex algorithm diff