    MyObject.objects.filter(time__gte=datetime.now()).exclude(id__in=object_id_list)

You can also do this using the `Q` object:

    from django.db.models import Q
    
    MyObject.objects.filter(time__gte=datetime.now()).filter(~Q(id__in=object_id_list))

As I understand it, there are a couple of ways (maybe others as well) to create a shallow copy of a `Map` in Java:

    Map&lt;String, Object&gt; data = new HashMap&lt;String, Object&gt;();
    Map&lt;String, Object&gt; shallowCopy;
    
    // first way
    shallowCopy = new HashMap&lt;String, Object&gt;(data);
    
    // second way
    shallowCopy = (Map&lt;String, Object&gt;) ((HashMap&lt;String, Object&gt;) data).clone();

Is one way preferred over the other, and if so, why?

One thing worth mentioning is that the second way gives an &quot;Unchecked Cast&quot; warning. So you have to add `@SuppressWarnings(&quot;unchecked&quot;)` to get around it, which is a little irritating (see below).

    @SuppressWarnings(&quot;unchecked&quot;)
    public Map&lt;String, Object&gt; getDataAsMap() {
        // return a shallow copy of the data map
        return (Map&lt;String, Object&gt;) ((HashMap&lt;String, Object&gt;) data).clone();
    }



Shallow copy of a Map in Java

What is the easiest way to pretty print (a.k.a. formatted) a `org.w3c.dom.Document` to stdout?

What is the shortest way to pretty print a org.w3c.dom.Document to stdout?

How can I filter in a query so the result excludes any object instances with ID belonging to a list?

Lets say I have:

    object_id_list = [1, 5, 345]
    
    MyObject.objects.filter(Q(time__gte=datetime.now()) &amp; Q( ... what to put here? ... ))

Something in the style of `&quot;SELECT * FROM ... WHERE id NOT IN (...)&quot;`



Django queries: how to filter objects to exclude id which is in a list?

How can I filter in a query so the result excludes any object instances with ID belonging to a list?
Lets say I have:
<pre><code class="hljs language-css">object_id_list = [1, 5, 345]

MyObject.objects.filter(Q(time__gte=datetime.now()) &#x26; Q( ... what to put here? ... ))
</code></pre>
Something in the style of <code>"SELECT * FROM ... WHERE id NOT IN (...)"</code>

My django application has become painfully slow on the production. Probably it is due to some complex or unindexed queries. 

Is there any django-ish way to profile my application?

Profiling Django

Is it possible to access the forloop.counter for the outermost for loop in the following template in Django:

    {% for outerItem in outerItems %}
        {% for item in items%}
	        &lt;div&gt;{{ forloop.counter }}.&amp;nbsp;{{ item }}&lt;/div&gt;
	    {% endfor %}
    {% endfor %}

forloop.counter returns the innermost for loop&#39;s counter in the above example

How to access outermost forloop.counter with nested for loops in Django templates?

what I&#39;m trying to do is this:

- get the 30 Authors with highest score ( `Author.objects.order_by(&#39;-score&#39;)[:30]` )

- order the authors by `last_name`

____

Any suggestions?

Good ways to sort a queryset? - Django

I want to do the below list iteration in django templates:

    foo = [&#39;foo&#39;, &#39;bar&#39;];
    moo = [&#39;moo&#39;, &#39;loo&#39;];
    
    for (a, b) in zip(foo, moo):
        print a, b

django code:

    {%for a, b in zip(foo, moo)%}
      {{a}}
      {{b}}
    {%endfor%}

I get the below error when I try this:

    File &quot;/base/python_lib/versions/third_party/django-0.96/django/template/defaulttags.py&quot;, line 538, in do_for
        raise TemplateSyntaxError, &quot;&#39;for&#39; statements should have either four or five words: %s&quot; % token.contents

How do I accomplish this?




Iterating through two lists in Django templates

Hi I have an array of checkboxes e.g.

    &lt;input type=&quot;checkbox&quot; name=&quot;checks[]&quot; value=&quot;1&quot; /&gt;
    &lt;input type=&quot;checkbox&quot; name=&quot;checks[]&quot; value=&quot;2&quot; /&gt;
    &lt;input type=&quot;checkbox&quot; name=&quot;checks[]&quot; value=&quot;3&quot; /&gt;
    &lt;input type=&quot;checkbox&quot; name=&quot;checks[]&quot; value=&quot;4&quot; /&gt;

How do I access these in the view.py if more than one is selected?

I have tried 

    request.POST[&#39;checks&#39;]

but that only gives me the last value.  What I want is all the ones that have been selected in a list e.g. 1,3,4

Thanks

How do I get the values of all selected checkboxes in a Django request.POST?

I have a list containing data as such:

    [1, 2, 3, 4, 7, 8, 10, 11, 12, 13, 14]
I&#39;d like to print out the ranges of consecutive integers:

    1-4, 7-8, 10-14
Is there a built-in/fast/efficient way of doing this?

Detecting consecutive integers in a list

Is there a short way to add List&lt;&gt; to List&lt;&gt; instead of looping in result and add new result one by one?

    var list = GetViolations(VehicleID);
    var list2 = GetViolations(VehicleID2);

    list.Add(list2);

How to add List&lt;&gt; to a List&lt;&gt; in asp.net

I guess another way to phrase this would be &quot;Is there a class like `List&lt;&gt;` in C#, but optimized for checking whether a particular value is present?&quot; I&#39;m sure for a small set of values `List&lt;&gt;.Contains` would probably be fine, but what if I have a set of thousands or millions of values and wanted to find out whether a certain value was in it?

I&#39;ve implemented this kind of thing in the past by creating a `Dictionary&lt;object, int&gt;` and setting the value to 0 for every key, but this feels really clunky. And now there&#39;s Stack Overflow, where my stupid question can be transformed into education for thousands (dozens, even). So here it is!

I&#39;m not even sure what such a class would be called, other than maybe Set, so obviously searches on the topic have been... challenging :) 

Is there a class like Dictionary&lt;&gt; in C#, but for just keys, no values?

I have a dictionary as follows:

    {&#39;A&#39;:0,&#39;C&#39;:0,&#39;G&#39;:0,&#39;T&#39;:0}

I want to create an array with many dictionaries in it, as follows:

    [{&#39;A&#39;:0,&#39;C&#39;:0,&#39;G&#39;:0,&#39;T&#39;:0},{&#39;A&#39;:0,&#39;C&#39;:0,&#39;G&#39;:0,&#39;T&#39;:0},{&#39;A&#39;:0,&#39;C&#39;:0,&#39;G&#39;:0,&#39;T&#39;:0},...]

This is my code:

    weightMatrix = []
    for k in range(motifWidth):
        weightMatrix[k] = {&#39;A&#39;:0,&#39;C&#39;:0,&#39;G&#39;:0,&#39;T&#39;:0}

But of course it isn&#39;t working. Can someone give me a hint? Thanks. 



How can I create an array/list of dictionaries in python?

Question is simple:

I have two List&lt;String&gt;

    List&lt;String&gt; columnsOld = DBUtils.GetColumns(db, TableName);
    List&lt;String&gt; columnsNew = DBUtils.GetColumns(db, TableName);

And I need to get the intersection of these. Is there a quick way to achieve this?


Content Type	Original Author	Original Content on Stackoverflow
Question	ria	View Question on Stackoverflow
Solution 1 - Django	Ignacio Vazquez-Abrams	View Answer on Stackoverflow
Solution 2 - Django	Javed	View Answer on Stackoverflow

Django queries: how to filter objects to exclude id which is in a list?

Django Problem Overview

Django Solutions

Solution 1 - Django

Solution 2 - Django

What is the shortest way to pretty print a org.w3c.dom.Document to stdout?

Shallow copy of a Map in Java

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