Improving FFT performance in Python
What is the fastest FFT implementation in Python?
python
Convert a string to integer with decimal in Python
I have a string in the format: ‘nn.nnnnn’ in Python, and I’d like to convert it to an integer.
Meaning of leading underscore in list of tuples used to define choice fields?
I’ve seen a few examples defining choice fields like so:
How to calculate a Fourier series in Numpy?
I have a periodic function of period T and would like to know how to obtain the list of the Fourier coefficients. I tried using fft module from numpy but it seems more dedicated to Fourier transforms than series.
Maybe it a lack of mathematical knowledge, but I can’t see how to calculate the Fourier coefficients from fft.
Why are main runnable Python scripts not compiled to pyc files like modules?
From PEP 3147 on “Byte code
compilation”:
Click Command Line Interfaces: Make options required if other optional option is unset
When writing a command-line interface (CLI) with the Python click library, is it possible to define e.g. three options where the second and third one are only required if the first (optional) one was left unset?
Long-running ssh commands in python paramiko module (and how to end them)
I want to run a tail -f logfile command on a remote machine using python’s paramiko module. I’ve been attempting it so far in the following fashion:
Using a Django custom model method property in order_by()
I’m currently learning Django and some of my models have custom methods to get values formatted in a specific way. Is it possible to use the value of one of these custom methods that I’ve defined as a property in a model with order_by()?
Using OpenCV with Tkinter
I’m writing a program that needs to display a video stream in a Tkinter window. Since there will also be buttons for performing various functions, I’m using grid to organize where everything goes.
How to append in a json file in Python?
I have the a json file whose contents is {"67790": {"1": {"kwh": 319.4}}}. Now I create a dictionary a_dict which I need to append it into the json file. I tried the following but was not able to do it correctly. Where I’m going wrong?