    In [62]: y={100:1, 90:4, 99:3, 92:1, 101:1}
    In [63]: sorted(y.items(), key=lambda x: (x[1],x[0]), reverse=True)
    Out[63]: [(90, 4), (99, 3), (101, 1), (100, 1), (92, 1)]

The `key=lambda x: (x[1],x[0])` tells `sorted` that for each item `x` in `y.items()`, use `(x[1],x[0])` as the proxy value to be sorted. Since `x` is of the form `(key,value)`, `(x[1],x[0])` yields `(value,key)`. This causes `sorted` to sort by `value` first, then by `key` for tie-breakers.

`reverse=True` tells `sorted` to present the result in descending, rather than ascending order.

See this [wiki page][1] for a great tutorial on sorting in Python.

PS. I tried using `key=reversed` instead, but `reversed(x)` returns an iterator, which does not compare as needed here.

  [1]: http://wiki.python.org/moin/HowTo/Sorting

Maybe this is more explicit:

    &gt;&gt;&gt; y = {100:1, 90:4, 99:3, 92:1, 101:1}
    &gt;&gt;&gt; reverse_comparison = lambda (a1, a2), (b1, b2):cmp((b2, b1), (a2, a1))
    &gt;&gt;&gt; sorted(y.items(), cmp=reverse_comparison)
    [(90, 4), (99, 3), (101, 1), (100, 1), (92, 1)]


Try this:

    &gt;&gt;&gt; d={100:1, 90:4, 99:3, 92:1, 101:1}
    &gt;&gt;&gt; sorted(d.items(), lambda a,b:b[1]-a[1] or a[0]-b[0])



`&#39;.` can jump to the line of last change. But I need to jump to the exactly point.

How to jump to the exact last change point in Vim

I want to set an environment variable that has space in it.
it is a path to a folder and the folder name is:
/home/mehrabib/my video

I edit .bashrc and add the following line to it:

    export $VIDEO=/home/mehrabib/my\ video
and run these commands:

    echo $VIDEO
    cd $VIDEO

the result is:

    /home/mehrabib/my video
    /home/mehrabib/my :no such file or directory

I change it to

    export $VIDEO=/home/mehrabib/my\\\ video

and run these commands:

    echo $VIDEO
    cd $VIDEO

the result is:

    /home/mehrabib/my\ video
    /home/mehrabib/my\ :no such file or directory

what should i do?

Set environment variable with space in Linux

This seems like it has to be a dupe but my SO-searching-fu is poor today...

Say I have a dictionary of integer key/values, how can I sort the dictionary by the values descending, then by the key descending (for common values).

Input:
    
    {12:2, 9:1,  14:2}
    {100:1, 90:4, 99:3, 92:1, 101:1}

Output:

    [(14,2), (12,2), (9,1)]  # output from print 
    [(90,4), (99,3), (101,1), (100,1), (92,1)]

Sorting a dictionary by value then by key

This seems like it has to be a dupe but my SO-searching-fu is poor today...
Say I have a dictionary of integer key/values, how can I sort the dictionary by the values descending, then by the key descending (for common values).
Input:
<pre><code class="hljs language-css">{12:2, 9:1, 14:2}
{100:1, 90:4, 99:3, 92:1, 101:1}
</code></pre>
Output:
<pre><code class="hljs language-ini">[(14,2), (12,2), (9,1)] # output from print 
[(90,4), (99,3), (101,1), (100,1), (92,1)]
</code></pre>

I have some troubles while drawing two figures at the same time, not shown in a single plot. But according to the documentation, I wrote the code and only the figure one shows.  I think maybe I lost something important. Could anyone help me to figure out? Thanks.  (The *tlist_first* used in the code is a list of data.)

    plt.figure(1)
    plt.hist(tlist_first, bins=2000000, normed = True, histtype =&quot;step&quot;, cumulative = True, color = &#39;g&#39;,label = &#39;first answer&#39;)
    plt.ylabel(&#39;Percentage of answered questions&#39;)
    plt.xlabel(&#39;Minutes elapsed after questions are posted&#39;)

    plt.axvline(x = 30, ymin = 0, ymax = 1, color = &#39;r&#39;, linestyle = &#39;--&#39;, label = &#39;30 min&#39;)
    plt.axvline(x = 60, ymin = 0, ymax = 1, color = &#39;c&#39;, linestyle = &#39;--&#39;, label = &#39;1 hour&#39;)
    plt.legend()
    plt.xlim(0,120)
    plt.ylim(0,1) 
    plt.show()
    plt.close() ### not working either with this line or without it

    plt.figure(2)
    plt.hist(tlist_first, bins=2000000, normed = True, histtype =&quot;step&quot;, cumulative = True, color = &#39;g&#39;,label = &#39;first answer&#39;)
   
    plt.ylabel(&#39;Percentage of answered questions&#39;)
    plt.xlabel(&#39;Minutes elapsed after questions are posted&#39;)

    plt.axvline(x = 240, ymin = 0, ymax = 1, color = &#39;r&#39;, linestyle = &#39;--&#39;, label = &#39;30 min&#39;)
    plt.axvline(x = 1440, ymin = 0, ymax = 1, color = &#39;c&#39;, linestyle = &#39;--&#39;, label = &#39;1 hour&#39;)
    plt.legend(loc= 4)
    plt.xlim(0,2640)
    plt.ylim(0,1)
    plt.show()

How to show two figures using matplotlib?

Is there syntax that allows you to expand a list into the arguments of a function call?

Example:
    
    # Trivial example function, not meant to do anything useful.
    def foo(x,y,z):
       return &quot;%d, %d, %d&quot; %(x,y,z)
    
    # List of values that I want to pass into foo.
    values = [1,2,3]
    
    # I want to do something like this, and get the result &quot;1, 2, 3&quot;:
    foo( values.howDoYouExpandMe() )
    


How to expand a list to function arguments in Python

I&#39;ve been trying to wrap my head around how sockets work, and I&#39;ve been trying to pick apart some sample code I found at [this page](http://www.pythonprasanna.com/Papers%20and%20Articles/Sockets/tcpclient_py.txt) for a very simple client socket program. Since this is basic sample code, I assumed it had no errors, but when I try to compile it, I get the following error message. 

&gt;  File &quot;client.py&quot;, line 4, in &lt;module&gt;
&gt;    client_socket.connect((&#39;localhost&#39;, 5000))
&gt;  File &quot;&lt;string&gt;&quot;, line 1, in connect
&gt;  socket.error: [Errno 111] Connection refused

I&#39;ve googled pretty much every part of this error, and people who&#39;ve had similar problems seem to have been helped by changing the port number, using &#39;connect&#39; instead of &#39;bind,&#39; and a few other things, but none of them applied to my situation. Any help is greatly appreciated, since I&#39;m very new to network programming and fairly new to python.

By the way, here is the code in case that link doesn&#39;t work for whatever reason.

    #client example
    import socket
    client_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    client_socket.connect((&#39;localhost&#39;, 5000))
    while 1:
        data = client_socket.recv(512)
        if ( data == &#39;q&#39; or data == &#39;Q&#39;):
            client_socket.close()
            break;
        else:
            print &quot;RECIEVED:&quot; , data
            data = raw_input ( &quot;SEND( TYPE q or Q to Quit):&quot; )
            if (data &lt;&gt; &#39;Q&#39; and data &lt;&gt; &#39;q&#39;):
                client_socket.send(data)
            else:
                client_socket.send(data)
                client_socket.close()
                break;
                

Basic Python client socket example

Is there any standard way of getting JSON data from RESTful service using Python? 

I need to use kerberos for authentication.

some snippet would help.

How do I get JSON data from RESTful service using Python?

I have an RGB image. I want to convert it to numpy array. I did the following

    im = cv.LoadImage(&quot;abc.tiff&quot;)
    a = numpy.asarray(im)

It creates an array with no shape. I assume it is a iplimage object.

Content Type	Original Author	Original Content on Stackoverflow
Question	Austin Salonen	View Question on Stackoverflow
Solution 1 - Python	unutbu	View Answer on Stackoverflow
Solution 2 - Python	Don	View Answer on Stackoverflow
Solution 3 - Python	Melug	View Answer on Stackoverflow

Sorting a dictionary by value then by key

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Python Solutions

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Set environment variable with space in Linux

How to jump to the exact last change point in Vim

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