I found out an easier way. 

 * go to File -&gt; Settings -&gt; Keymap 
 * Search for `Execute Selection in Console` and reassign it to a new shortcut, like &lt;kbd&gt;Crl&lt;/kbd&gt; &lt;kbd&gt;+&lt;/kbd&gt; &lt;kbd&gt;Enter&lt;/kbd&gt;. 


This is the same shortcut to the same action in Spyder and R-Studio.

Pycharm shortcut for running &quot;Selection&quot; in the console is ALT + SHIFT + e 

*For this to work properly, you&#39;ll have to run everything this way.*

[![enter image description here][1]][1]


  [1]: http://i.stack.imgur.com/hF128.png

You can select a code snippet and use right click menu to choose the action &quot;Execute Selection in console&quot;.

You can set a breakpoint, and then just open the debug console. So, the first thing you need to turn on your debug console:

![enter image description here][1]

After you&#39;ve enabled, set a break-point to where you want it to:

![enter image description here][2]

After you&#39;re done setting the break-point:

![enter image description here][3]

Once that has been completed:

![enter image description here][4]


  [1]: http://i.stack.imgur.com/WbHaR.png
  [2]: http://i.stack.imgur.com/ca0EA.png
  [3]: http://i.stack.imgur.com/h6ZqB.png
  [4]: http://i.stack.imgur.com/GKubD.png

 1. Go to File &gt;&gt; Settings &gt;&gt; Plugins and install the plugin `PyCharm cell mode`
 2. Go to File &gt;&gt; Settings &gt;&gt; Appearance &amp; Behavior &gt;&gt; Keymap and assign your keyboard shortcuts for `Run Cell` and `Run Cell and go to next`

A cell is delimited by ##

**Ref**
https://plugins.jetbrains.com/plugin/7858-pycharm-cell-mode

There is an option that you can run jupyter notebook file and its cells in pycharm.
For more information visit  [Run and debug Jupyter notebook code cells in pycharm][1].


  [1]: https://www.jetbrains.com/help/pycharm/running-jupyter-notebook-cells.html#variables

I&#39;m having trouble with `import cv` in my python code.

My issue is I need to draw a rectangle around regions of interest in an image.
How can this be done in python? I&#39;m doing object detection and would like to draw a rectangle around the objects I believe I&#39;ve found in the image.

How to draw a rectangle around a region of interest in python

I am using phonegap/cordova. 

Everthing is installed propelry i.e cordova, phonegap, ant,sdk,jdk. 

But now it says &quot;node is not recogzed as an internal or external command&quot;

&#39;node&#39; is not recognized as an internal or an external command, operable program or batch file while using phonegap/cordova

Is it possible to run only a part of a program in PyCharm?

In other editors there is something like a cell which I can run, but I can&#39;t find such an option in PyCharm?

If this function doesn&#39;t exist it would be a huge drawback for me... Because for my data analysis I very often only need to run the last few lines of my code.

Pycharm: run only part of my Python file

Is it possible to run only a part of a program in PyCharm?
In other editors there is something like a cell which I can run, but I can't find such an option in PyCharm?
If this function doesn't exist it would be a huge drawback for me... Because for my data analysis I very often only need to run the last few lines of my code.

I have an Express Node.js application, but I also have a machine learning algorithm to use in Python. Is there a way I can call Python functions from my Node.js application to make use of the power of machine learning libraries?


How to call a Python function from Node.js

I&#39;m trying to create N balanced random subsamples of my large unbalanced dataset. Is there a way to do this simply with scikit-learn / pandas or do I have to implement it myself? Any pointers to code that does this?

These subsamples should be random and can be overlapping as I feed each to separate classifier in a very large ensemble of classifiers.

In Weka there is tool called spreadsubsample, is there equivalent in sklearn? 
http://wiki.pentaho.com/display/DATAMINING/SpreadSubsample

(I know about weighting but that&#39;s not what I&#39;m looking for.)

Scikit-learn balanced subsampling

After reading through: http://pandas.pydata.org/pandas-docs/version/0.13.1/generated/pandas.DataFrame.sort.html

I still can&#39;t seem to figure out how to sort a column by a custom list.  Obviously, the default sort is alphabetical.  I&#39;ll give an example.  Here is my (very abridged) dataframe:

                 Player	     Year	Age	  Tm	 G
    2967	 Cedric Hunter	 1991	 27	 CHH	 6
    5335	 Maurice Baker	 2004	 25	 VAN	 7
    13950	 Ratko Varda	 2001	 22	 TOT	 60
    6141	 Ryan Bowen	     2009	 34	 OKC     52
    6169	 Adrian Caldwell 1997	 31	 DAL	 81

I want to be able to sort by Player, Year and then Tm.  The default sort by Player and Year is fine for me, in normal order.  However, I do not want Team sorted alphabetically b/c I want TOT always at the top.

Here is the list I created:

    sorter = [&#39;TOT&#39;, &#39;ATL&#39;, &#39;BOS&#39;, &#39;BRK&#39;, &#39;CHA&#39;, &#39;CHH&#39;, &#39;CHI&#39;, &#39;CLE&#39;, &#39;DAL&#39;, &#39;DEN&#39;,
       &#39;DET&#39;, &#39;GSW&#39;, &#39;HOU&#39;, &#39;IND&#39;, &#39;LAC&#39;, &#39;LAL&#39;, &#39;MEM&#39;, &#39;MIA&#39;, &#39;MIL&#39;,
       &#39;MIN&#39;, &#39;NJN&#39;, &#39;NOH&#39;, &#39;NOK&#39;, &#39;NOP&#39;, &#39;NYK&#39;, &#39;OKC&#39;, &#39;ORL&#39;, &#39;PHI&#39;,
       &#39;PHO&#39;, &#39;POR&#39;, &#39;SAC&#39;, &#39;SAS&#39;, &#39;SEA&#39;, &#39;TOR&#39;, &#39;UTA&#39;, &#39;VAN&#39;,
       &#39;WAS&#39;, &#39;WSB&#39;]

After reading through the link above, I thought this would work but it didn&#39;t:

    df.sort([&#39;Player&#39;, &#39;Year&#39;, &#39;Tm&#39;], ascending = [True, True, sorter])

It still has ATL at the top, meaning that it sorted alphabetically and not according to my custom list.  Any help would really be greatly appreciated, I just can&#39;t figure this out.

sorting by a custom list in pandas

In python docs I can see that deque is a special collection highly optimized for poping/adding items from left or right sides. E.g. documentation says:

&gt; Deques are a generalization of stacks and queues (the name is
&gt; pronounced “deck” and is short for “double-ended queue”). Deques
&gt; support thread-safe, memory efficient appends and pops from either
&gt; side of the deque with approximately the same O(1) performance in
&gt; either direction.
&gt; 
&gt; Though list objects support similar operations, they are optimized for
&gt; fast fixed-length operations and incur O(n) memory movement costs for
&gt; pop(0) and insert(0, v) operations which change both the size and
&gt; position of the underlying data representation.

I decided to make some comparisons using *ipython*. Could anyone explain me what I did wrong here:

    In [31]: %timeit range(1, 10000).pop(0)
     10000 loops, best of 3: 114 us per loop
    
    In [32]: %timeit deque(xrange(1, 10000)).pop() 
    10000 loops, best of 3: 181 us per loop
    
    In [33]: %timeit deque(range(1, 10000)).pop()
    1000 loops, best of 3: 243 us per loop



python: deque vs list performance comparison

I&#39;m trying to GET an URL of the following format using requests.get() in python:

http://api.example.com/export/?format=json&amp;key=site:dummy+type:example+group:wheel

    #!/usr/local/bin/python
    
    import requests
    
    print(requests.__versiom__)
    url = &#39;http://api.example.com/export/&#39;
    payload = {&#39;format&#39;: &#39;json&#39;, &#39;key&#39;: &#39;site:dummy+type:example+group:wheel&#39;}
    r = requests.get(url, params=payload)
    print(r.url)

However, the URL gets percent encoded and I don&#39;t get the expected response.

    2.2.1
    http://api.example.com/export/?key=site%3Adummy%2Btype%3Aexample%2Bgroup%3Awheel&amp;format=json

This works if I pass the URL directly:

    url = http://api.example.com/export/?format=json&amp;key=site:dummy+type:example+group:wheel
    r = requests.get(url)

Is there some way to pass the the parameters in their original form - without percent encoding?

Thanks!

How to prevent python requests from percent encoding my URLs?

The new pycharm release (3.1.3 community edition) proposes to convert the methods that don&#39;t work with the current object&#39;s state to static.

![enter image description here][1]

What is the practical reason for that? Some kind of micro-performance(-or-memory)-optimization?


  [1]: http://i.stack.imgur.com/l0TgW.png

Why does PyCharm propose to change method to static?

I&#39;m new in this area so I have a question. Recently, I started working with Python and Django. I installed PyCharm Community edition as my IDE, but I&#39;m unable to create a Django project.

I looked for some tutorials, and there is an option to select &quot;project type&quot;, but in the latest version this option is missing. Can someone tell me how to do this?


How to set up a Django project in PyCharm

I recently changed from `Spyder` to `PyCharm` as a Python IDE. In `Spyder` I have often used the variable explorer feature (see picture). Is this feature also available in `PyCharm`?![enter image description here][1]


  [1]: http://i.stack.imgur.com/DH9gy.png

I found this [here](http://confluence.jetbrains.com/display/PYH/PyCharm+3.0+Roadmap), that &quot;`Variable explorer in Python console (traff)`&quot; should be included in `PyCharm 3`, but I cannot find that. Maybe someone could tell me how to use that tool.

Is there a Variable Explorer for PyCharm

I am using PyCharm as an editor for python code in Houdini. Whenever I try to import the main Houdini library (hou) I get an error flagged in PyCharm. If I include the code snippet:-


    try:  
       import hou  
    except ImportError:  
        # Add $HFS/houdini/python2.6libs to sys.path so Python can find the  
        # hou module.  
        sys.path.append(os.environ[&#39;HFS&#39;] + &quot;/houdini/python%d.%dlibs&quot; % sys.version_info[:2])  
        import hou 

my code executes, without problem, from both Houdini and my selected interpreter.

My problem is with PyCharm itself. The editor flags &#39;import hou&#39; as an error and any subsequent files that import this file flag modules imported by this file as errors as well. Hence I loose type ahead functionality and get an over abundance of error messages that make it hard to spot the real problems.

How do I get PyCharm to recognize the path to the hou module.

I have tried, for a couple of days, to Google a solution to this problem but they all seem to refer to tabs and settings that are not in my version of PyCharm (Community Edition 3.4.1). E.G. my &#39;Project Interpreter&#39; setting only has a list of Packages and has no &#39;path&#39; tab as stated in many &#39;fixes&#39; to closely related problems.


PyCharm import external library

I read about Git integration in PyCharm, and created a Git repository from PyCharm. I did this in PyCharm because I was hoping PyCharm would know whether the `.idea` folder should be ignored, and if that&#39;s the case, it would automatically create a `.gitignore` file with the line `.idea/` in it. 

But it didn&#39;t, so I assumed that I shouldn&#39;t ignore the `.idea` foler. However, I did a quick search and found someone&#39;s example `.gitignore` file, [here][1], which clearly ignores the `.idea` folder.

So, my question is, should the `.idea` folder be ignored or not?


  [1]: https://gist.github.com/yasushisakai/4584653

Content Type	Original Author	Original Content on Stackoverflow
Question	FrankTheTank	View Question on Stackoverflow
Solution 1 - Python	Willian Adamczyk	View Answer on Stackoverflow
Solution 2 - Python	Wisienkas	View Answer on Stackoverflow
Solution 3 - Python	PyTony	View Answer on Stackoverflow
Solution 4 - Python	Games Brainiac	View Answer on Stackoverflow
Solution 5 - Python	floatsd	View Answer on Stackoverflow
Solution 6 - Python	Amir Fo	View Answer on Stackoverflow

Pycharm: run only part of my Python file

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'node' is not recognized as an internal or an external command, operable program or batch file while using phonegap/cordova

How to draw a rectangle around a region of interest in python

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