I am trying to rewrite a function view that download files into a classview. However I don’t see how to do it properly with the right methods, since I have an argument from the url. Then I do not which on of the class view I should be using. I did an attemps that is worrking, but I do not
Tag: python
Downsampling time series data in pandas
I have timeseries data that looks like this: I would like to downsample my data from 15-minute frequencies to 1-hour frequencies. So, the first 4 rows above would be summed under 00:00 timestamp, then next 4 rows would be combined under 01:00. Is there an efficient way to make this happen? Answer Look at pand…
find out if the indexes of a grouped data frame match a column of another dataframe?
I have a grouped data frame named df_grouped where AF & Local are the indexes. I would like to assert whether the indexes in df_grouped are equal to a column from another dataframe df[A]. This is an example of my code I tried this but it does not work: Answer To use assert for pandas series you can use as…
layer.get_weights() is not equal in the same model layers
Why not all the layer weights equal: Here is the output: The a_weights == b_weights are not all the “True”. What’s the problem? Answer Notice that the only time a_weights == b_weights is True, is when you are referencing a layer, which does not have any weights. np.array_equal is returning F…
Timer implementation in python
I’m trying to implement a timer that counting down hours, mins and secs. I saw a similar implementation on the internet but still yet, there is nothing that printed to the terminal: Answer r denotes carriage return so timer is printed and then (very quickly) wiped, to avoid that you should print carriag…
String match with ‘in’
In the following code, I would like to search a match for elements in a list in a given string. When I run the code, I see That means lst1[0] is found in y which results in yes2. That is wrong in my case. x doesn’t start with PLOP3 although it has LOP3 in its name. So, I would like
How to change the name of the dictionary while iterating over it?
How can I change the name of the dictionary while, iterating it over a while-loop(or any other)… so that it saves the input information in a dictionary with different name every single time? This would save the information(as a dictionary) in different names(like biodata1, biodata2, etc…) so that …
How to improve the computation speed of subsetting a pandas dataframe?
I have a large df (14*1’000’000) and I want to subset it. The calculation seems to take unsurprisingly a lot of time though and I wonder how to improve the speed. What I want is to subset for each Name the lowest value of Total_time while ignoring zero values and picking only the first one if ther…
How to run periodic serial communication in a separate thread in python
I am programming a GUI with tkinter that controls the communication to multiple motor controllers that are connected serially via RS485. I have a function (get_status()) that requests the status (motor running, motor position, position reached, …) of the controllers via pySerial and displays the uptated…
Unsupported lookup ‘category’ for CharField or join on the field not permitted
models.py: This is my views.py file. I show error at: bestseller = Product.objects.filter(product__category__icontains=’BestSeller’) views.py: I want to Bestseller category product at index.html I use Django 4 and pyhton 3.9 Answer You can’t use CharField as a ForeignKey. It should be like t…