How do I create a generator that will return tuples of all combinations of positive integers, example for generating triplets. Answer This code uses a similar approach to Paul Hankin’s, but it’s more general since it will generate tuples of any desired width, not just 3. output The algorithm for c…
Tag: python
How start celery worker in Django project
I have a Django project with the directory structure mentioned below. I am trying to use Celery for running tasks in the background. I have facing some trouble while running the worker. Whenever I issue the following command, I get an error. Command From the projectdirectory where manage.py resides ModuleNotF…
not seeing UDP multicast messages from another device
I have a Windows machine where I have two scripts that send and receive messages via UDP multicast (on the same machine). I have a C and Python3 implementation of this. The Python3 one looks like this: sender.py receiver.py I have another physical device hooked up to the same machine but I cannot receive any …
AttributeError when reading a pickle file
I get the following error when I’m reading my .pkl files on spyder (python 3.6.5): The context: My program is made of one file: program.py In the program, a class Signal is defined as well as many functions. A simplified overview of the program is provided below: The function compute_data will return a …
Why is numpy.ravel() required in this code that produces small multiples?
I found some code to generate a set of small multiples and it is working perfectly. The line for ax, data in zip(axes.ravel(), clean_sets): contians .ravel() but I do not understand what this is actually doing or why it is necessary. If I take a look at the docs I find the following: Return a contiguous flatt…
Convert date object in normal format
When I am using a Python object, I get: This is not the format I need. We need to convert to this data format: How can I convert this in Python/Django? Example: It’s working fine, but how can I pass 2018-05-18 10:05:06 as database but database giving? It’s giving 2018-05-18 08:38:58+00:00. How can I check dat…
Set the format for pd.to_datetime
Hi already referred to this post but I could not get through my issue. I have a column in my CSV which is string and the sample values are below (note that the month and year positioning are sometimes reversed). What format do I need to set in my to_datetime? I tried all the below approaches I get the error
How to auto generate slug from my Album model in django 2.0.4
I have an Album field with a list of Songs I would like to know how to generate slugs from the album title. I am following a tutorial which is using django 1.8 which uses regular expressions to implement this task. But from looking through the documentation they have introduced a more simpler approach (”…
Save and export dtypes information of a python pandas dataframe
I have a pandas DataFrame named df. With df.dtypes I can print on screen: I want to save this information so that I can compare it with other data, type-cast things elsewhere, etc. I want to save it into to a local file, recover it elsewhere in another program where the data can’t go. But I’m not …
How to convert Tensorflow dataset to 2D numpy array
I have a TensorFlow dataset which contains nearly 15000 multicolored images with 168*84 resolution and a label for each image. Its type and shape are like this: I need to use it to train my network. That’s why I need to pass it as a parameter to this function that I built my layers in: I tried to conver…