I am trying to gather the first two pages products names on Amazon based on seller name. When I request the page, it has all elements I need ,however, when I use BeautifulSoup – they are not being listed. Here is my code: The links of products are not listed. If the Amazon API gives this information, I …
PEP484 typing — how to annotate Callable with NoReturn type?
Is it possible to annotate Callable with the NoReturn type? The way I would expect to do this yields an error: Edit: for anyone who encounters this problem in the future, the issue was a bug in Python 3.7.0 and upgrading to Python 3.7.2 mitigates the issue. Answer For me (with Python 3.7.2) it works without a…
Finding Subarrays of Vowels from a given String
You are given a string S, and you have to find all the amazing substrings of S. Amazing Substring is one that starts with a vowel (a, e, i, o, u, A, E, I, O, U). Input The only argument given is string S. Output Return a single integer X mod 10003, here X is number of Amazing Substrings in
A few operations with df.groupby()
I working with a forex dataset, trying to fill in my dataframe with open, high, low, close updated every tick. Here is my code: So as you can see, with for loop I’m getting groups. Now I want to fill the following columns in my dataframe: idx be my df[‘candle_number’] df[‘1h_open’…
Pyglet game movement lagging behind
So, my snake makes a continuous movement, but if I press any key it goes back in time and lags back and forward. Here is a video: https://youtu.be/KCesu5bGiS8 My guess would be to update the key input faster, but when I do that everything updates faster, so the snake goes faster etc. Code (as requested in tex…
python – apply Operation on multiple variables
I know that this is a rather silly question and there are similar ones already answered, but they don’t quite fit, so… How can I perform the same operation on multiple variables in an efficient way, while “keeping” the individual variables? example: What I want as the output in this sc…
Remove default formatting in header when converting pandas DataFrame to excel sheet
This is something that has been answered and re-answered time and time again because the answer keeps changing with updates to pandas. I tried some of the solutions I found here and elsewhere online and none of them have worked for me on the current version of pandas. Does anyone know the current, March 2019,…
Rename dataframe columns with a mapper function that takes parameters
How can I pass along parameters to a mapper function in pandas.DataFrame.rename? The example below uses a mapper function test. I want to change it’s behavior based on an additional parameter that I pass along. In this example, the mapper function appends an “A” to each column name. I want t…
Array Manipulation Hackerrank using python [closed]
Closed. This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 1 year ago. Improve this question This logic is working for most of the test cases but not all. What I am doing wrong? Answer N…
Cython class AttributeError
I have started to experiment with Cython and ran into the following problem. Consider the following class representing a vertex in the 3D space: Now I try to create an object from the Python console: which works fine. However, when I’m trying to access the class attributes, I’m getting an Attribut…