In C# we can create regions by using Is there any way to format python code in similar fashion so that I can keep all my relevant methods in one block? Answer I recommend you have a look at PyDev. If you structure your Python code well it will be very useful to have a document outline and code folding.
Tag: python
Python Filtering 2 Lists
I’m trying to find a way to use one list to filter out elements of another. Kinda like the intersect syntax but the exact opposite expected outcome Answer Simple way: or
How to JSON serialize sets?
I have a Python set that contains objects with __hash__ and __eq__ methods in order to make certain no duplicates are included in the collection. I need to json encode this result set, but passing even an empty set to the json.dumps method raises a TypeError. I know I can create an extension to the json.JSONE…
How can I change the cursor shape with PyQt?
I have a simple application that runs a process that can last for several minutes before completing. I am trying to provide an indication to the user that it is processing the request – such as changing the cursor to an hourglass. But I cannot quite get it to work right. All of my attempts have resulted…
How to check if a value exists in a dictionary?
I have the following dictionary in python: I need a way to find if a value such as “one” or “two” exists in this dictionary. For example, if I wanted to know if the index “1” existed I would simply have to type: And then python would tell me if that is true or false, howeve…
When to use cla(), clf() or close() for clearing a plot in matplotlib?
Matplotlib offers these functions: When should I use each function and what exactly does it do? Answer They all do different things, since matplotlib uses a hierarchical order in which a figure window contains a figure which may consist of many axes. Additionally, there are functions from the pyplot interface…
Data from a MATLAB .fig file using Python?
Does anyone know of any methods of extracting the data from a MATLAB fig file using Python? I know these are binary files but the methods in the Python Cookbook for .mat files http://www.scipy.org/Cookbook/Reading_mat_files don’t seem to work for .fig files… Thanks in advance for any help, Dan Ans…
How to create a SSH tunnel using Python and Paramiko?
I need to create tunneling to read information from a database. I use Paramiko, but I have not worked with tunneling yet. Please provide an example of a simple code that creates and closes a tunnel. Answer At work we usually create ssh tunnels forwarding ports. The way we do that is, by using the standard com…
set matplotlib 3d plot aspect ratio
Setting the aspect ratio works for 2d plots: But does not for 3d: Is there a different syntax for the 3d case, or it’s not implemented? Answer My understanding is basically that this isn’t implemented yet (see this bug in GitHub). I’m also hoping that it is implemented soon. See This link fo…
Is there a way to “compile” Python code onto an Arduino (Uno)?
I have a robotics type project with an Arduino Uno, and to make a long story short, I am experimenting with some AI algorithms. However, I need to implement some high level matrix algorithms that would be quite simple using NumPy/SciPy, but they are an utter nightmare in C or C++. Even with the libraries out …