Assuming the generated python is located in File_pb2.py code Try this:

&lt;!-- language-all: lang-python --&gt;

    file_pb2._TEST.values_by_number[1].name

In your case, this should give `&#39;ONE&#39;`

The reverse is :

    file_pb2._TEST.values_by_name[&#39;ONE&#39;].number

will give `1`.


EDIT: As correctly pointed by @dyoo in the comments, a new method was later introduced in protobuf library:

    file_pb2.Test.Name(1)
    file_pb2.Test.Value(&#39;One&#39;)

EDIT: This has changed again in proto3. Now the Name() and Value() methods belong to the EnumTypeWrapper class so they can be accessed like:

    file_pb2.Name(1)
    file_pb2.Value(&#39;One&#39;)


I am writing a tool in Java using Apache POI API to convert an XML to MS Excel. In my XML input, I receive the column width in points. But the Apache POI API has a slightly queer logic for setting column width based on font size etc. (refer [API docs](http://poi.apache.org/apidocs/org/apache/poi/hssf/usermodel/HSSFSheet.html#setColumnWidth%28int,%20int%29))

Is there a formula for converting points to the width as expected by Excel? Has anyone done this before?

There is a `setRowHeightInPoints()` method though :( but none for column.

P.S.: The input XML is in ExcelML format which I have to convert to MS Excel.

Setting Column width in Apache POI

Is it possible to change the color of the overflow button(3 vertical dots) on the action bar?
If so, how do we do that? I didn&#39;t find any style for overflow button.

Thanks

Change color of the overflow button on ActionBar

For example, I have proto-file `File.proto`:

    enum Test {
      ONE = 1;
      TWO = 2;
    }

I generate file `File_pb2.py` with protoc from `File.proto`.
I want in a python-code get string &quot;ONE&quot; (that corresponds to the name of File_pb2.ONE) by value 1 (that corresponds to the value of File_pb2.ONE) from generated file `File_pb2.py` without defining my own dictionaries. How can I do that?

How to get top-level protobuf enum value name by number in python?

For example, I have proto-file <code>File.proto</code>:
<pre><code class="hljs language-ini">enum Test {
 ONE = 1;
 TWO = 2;
}
</code></pre>
I generate file <code>File_pb2.py</code> with protoc from <code>File.proto</code>.
I want in a python-code get string "ONE" (that corresponds to the name of File_pb2.ONE) by value 1 (that corresponds to the value of File_pb2.ONE) from generated file <code>File_pb2.py</code> without defining my own dictionaries. How can I do that?

I&#39;m running Mac OS 10.6.8. and wanted to install in addition to python 2.6 also python 2.7 and use python 2.7 in a new virtualenv. I executed the following steps:


I downloaded python 2.7 and installed it:

    http://www.python.org/ftp/python/2.7.3/python-2.7.3-macosx10.6.dmg

Then I run the command to setup a new virtualenv using python2.7:

    mkvirtualenv --python=python2.7 mynewenv


My .bash_profile looks like the following:



    # needed for virtualenvwrapper
    export WORKON_HOME=$HOME/.virtualenvs
    export VIRTUALENVWRAPPER_PYTHON=/usr/local/bin/python
    export VIRTUALENVWRAPPER_VIRTUALENV=/usr/local/bin/virtualenv
    source /usr/local/bin/virtualenvwrapper.sh
    
    
    # Setting PATH for Python 2.7
    # The orginal version is saved in .bash_profile.pysave
    PATH=&quot;/Library/Frameworks/Python.framework/Versions/2.7/bin:${PATH}&quot;
    export PATH


Now when I open the console I get the following error message. 

    ImportError: No module named virtualenvwrapper.hook_loader
    virtualenvwrapper.sh: There was a problem running the initialization hooks. If Python could not import the module virtualenvwrapper.hook_loader, check that virtualenv has been installed for VIRTUALENVWRAPPER_PYTHON=/usr/local/bin/python and that PATH is set properly.

I also found in a different post that I should upgrade virtualenvwrapper. That did not help.

    sudo pip install virtualenvwrapper --upgrade


Any help would be appreciated.

Python Virtualenv - No module named virtualenvwrapper.hook_loader

My attempt to programmatically create a dictionary of lists is failing to allow me to individually address dictionary keys. Whenever I create the dictionary of lists and try to append to one key, all of them are updated. Here&#39;s a very simple test case:

    data = {}
    data = data.fromkeys(range(2),[])
    data[1].append(&#39;hello&#39;)
    print data

Actual result: `{0: [&#39;hello&#39;], 1: [&#39;hello&#39;]}`

Expected result: `{0: [], 1: [&#39;hello&#39;]}`

Here&#39;s what works

    data = {0:[],1:[]}
    data[1].append(&#39;hello&#39;)
    print data

Actual and Expected Result: `{0: [], 1: [&#39;hello&#39;]}`

Why is the `fromkeys` method not working as expected?

How do I initialize a dictionary of empty lists in Python?

I&#39;m having much trouble trying to understand just how the multiprocessing queue works on python and how to implement it. Lets say I have two python modules that access data from a shared file, let&#39;s call these two modules a writer and a reader. My plan is to have both the reader and writer put requests into two separate multiprocessing queues, and then have a third process pop these requests in a loop and execute as such.

My main problem is that I really don&#39;t know how to implement multiprocessing.queue correctly, you cannot really instantiate the object for each process since they will be separate queues, how do you make sure that all processes relate to a shared queue (or in this case, queues)

How to use multiprocessing queue in Python?

Is there any difference between these three methods to remove an element from a list?

    &gt;&gt;&gt; a = [1, 2, 3]
    &gt;&gt;&gt; a.remove(2)
    &gt;&gt;&gt; a
    [1, 3]

    &gt;&gt;&gt; a = [1, 2, 3]
    &gt;&gt;&gt; del a[1]
    &gt;&gt;&gt; a
    [1, 3]

    &gt;&gt;&gt; a = [1, 2, 3]
    &gt;&gt;&gt; a.pop(1)
    2
    &gt;&gt;&gt; a
    [1, 3]



Difference between del, remove, and pop on lists

I am pretty new to this whole MV* client-side framework frenzy. It doesn&#39;t have to be AngularJS, but I picked it because it feels more natural to me than either Knockout, Ember or Backbone. Anyway what is the workflow like? Do people start with developing a client-side application in AngularJS and then hooking up the back-end to it?

Or the other way around by first building the back-end in Django, Flask, Rails and then attaching an AngularJS app to it? Is there a &quot;right&quot; way of doing it, or is it just a personal preference in the end?

I am also not sure whether to structure my project according to the Flask or AngularJS? community practices.

For example, Flask&#39;s minitwit app is structured like so:

    minitwit
    |-- minitwit.py
    |-- static
       |-- css, js, images, etc...
    `-- templates
       |-- html files and base layout

AngularJS tutorial app is structured like this:

    angular-phonecat
    |-- app
        `-- css
        `-- img
        `-- js
        `-- lib
        `-- partials
        `-- index.html
    |-- scripts
     `-- node.js server and test server files
    
I could picture a Flask app by itself, and it&#39;s fairly easy to see AngularJS app like ToDo List by itself but when it comes to using both of these technologies I don&#39;t understand how they work together. It almost seems like I don&#39;t need a server-side web-framework when you already have AngularJS, a simple Python web server will suffice. In the AngularJS to-do app for example they use MongoLab to talk to the database using Restful API. There was no need having a web framework on the back-end.

Maybe I am just awfully confused, and AngularJS is nothing more than a fancy jQuery library so I should use just like I would use jQuery in my Flask projects (assuming I change the AngularJS template syntax to something that doesn&#39;t conflict with Jinja2). I hope my questions make some sense. I mainly work on the back-end and this client-side framework is an unknown territory for me.

Typical AngularJS workflow and project structure (with Python Flask)

I would like to know the merits &amp; de-merits of

- Google Protocol Buffers
- JSON
- XML

I want to implement one common framework for two application, one in Perl and second in Java. So, would like to create common service which can be used by both technology i.e. Perl &amp; Java.

Both are web-applications.

Please share me your valuable thoughts &amp; suggestion on this. I have seen many links on google but all have mixed opinions.

google protocol buffers vs json vs XML

I would like to include a protocol definition file in another protocol file. For example:

    // base.proto:
    message P_EndPoint {
      required int32 id = 1;
      required string host = 2;
      required int32 port = 3;
    }
Then in another file:

    communication.proto:
    // somehow include `base.proto&#39;
    // ...
    message P_CommunicationProtocol {
      required CP_MessageType type = 1;
      optional int32 id = 2;
      optional P_EndPoint identity = 3;
      repeated P_EndPoint others = 4;
    }
    // ...

 (Note: developers.google.com is not available in my locale)

Splitting protocol buffer definitions into multiple .proto files

I&#39;m using protocol-buffers python lib to send data,but it&#39;s have some problems, so

    Traceback (most recent call last):
      File &quot;test_message.py&quot;, line 17, in &lt;module&gt;
        ptask.task = task
      File &quot;build\bdist.win32\egg\google\protobuf\internal\python_message.py&quot;, line
    513, in setter
    AttributeError: Assignment not allowed to composite field &quot;_task&quot; in protocol message object.

the src as follows:

proto file:

    message task {
        required int32 id = 1;
        required string msg = 2;
    }

    message task_info {
        required task task = 1;
    }

python code:

    task = yacc.task()
    task.id = 1000
    task.msg = u&quot;test&quot;
    ptask = yacc.task_info() 
    ptask.task = task # this line happen the runtime error 

AttributeError: Assignment not allowed to composite field &quot;task&quot; in protocol message object

Google Protocol Buffers can not only be serialized in binary format, also be [serialized as text](https://developers.google.com/protocol-buffers/docs/reference/cpp/google.protobuf.text_format), known as textproto. However I can&#39;t easily find examples of such text; what would it look like?

Expected answer: an example covering all features allowed by the protobuf IDL/proto file including a sample protobuf packet in textual form.

What does the protobuf text format look like?

I have an object that I de-serialize using `protobuf` in Python. When I print the object it looks like a python object, however when I try to convert it to `json` I have all sorts of problems.

For example, if I use `json.dumps()` I get that the object (the generated code from protoc) does not contain a _ _dict_ _ error.

If I use jsonpickle I get `UnicodeDecodeError: &#39;utf8&#39; codec can&#39;t decode byte 0x9d in position 97: invalid start byte`. 


Test code below is using `jsonpickle` with the error shown above. 

    if len(sys.argv) &lt; 2:
        print (&quot;Error: missing ser file&quot;)
        sys.exit()
    else :
        fileLocation = sys.argv[1]
        
    org = BuildOrgObject(fileLocation) 

    org = org.Deserialize()
    
           
    #print (org)
    jsonObj = jsonpickle.encode(org)
    print (jsonObj)

Content Type	Original Author	Original Content on Stackoverflow
Question	abyss.7	View Question on Stackoverflow
Solution 1 - Python	Tisho	View Answer on Stackoverflow

How to get top-level protobuf enum value name by number in python?

Python Problem Overview

Python Solutions

Solution 1 - Python

Change color of the overflow button on ActionBar

Setting Column width in Apache POI

Attributions