I’m trying to webscrape a link to an image to use it in my Kivy app. The problem is that the image adress has Polish signs in it (ę, ł , ó, ą) and I get this error: Full error traceback: Here is an example where you can see what I mean. On picture loads normaly, without errors, the second
Import csv: remove filename from column names in first row
I am using Python 3.5. I have several csv files: The csv files are named according to a fixed structure. They have a fixed prefix (always the same) plus a varying filename part: My original csv files look like this: I am manipulating these files using the following code (I am reading the csv files from a sour…
Interpolation in PySpark throws java.lang.IllegalArgumentException
I don’t know how to interpolate in PySpark when the DataFrame contains many columns. Let me xplain. I need to group by webID and interpolate counts values at 1 minute interval. However, when I apply the below-shown code, Error: Answer Set the environment variable ARROW_PRE_0_15_IPC_FORMAT=1. https://spa…
OpenCV tesserocr watermark detection
So I have about 12000 image links in my SQL table. Point is to detect which of those images contain watermarked text and which don’t. All text and borders is like this. I’ve tried with OpenCV and tesserocr But doesn’t seem it recognizes text on image at all. My second approach was to use som…
Spacy Installation error in python, with pip command
Thanks for looking into this, I was trying to install spacy with python 3.8 ( I tried it with 3.7.9 interpreter too ) But apparently It has been giving me following errors. Command used pip install spacy can you please suggest me possible fixes ? Answer There may be a problem with your pip cache and/or your p…
Divide dataframe column by a specific cell
I want to divide a dataframe column by a specific cell in the same dataframe. I have a dataframe like this: I want to compute the score_ratio by dividing the score by the ‘baseline’ score of that date. The score_ratio for (date, type) = (20201101, experiment1) should be obtained by dividing its sc…
Most efficient way to combine large Pandas DataFrames based on multiple column values
I am processing information in several Pandas DataFrames with 10,000+ rows. I have… df1, student information df2, student responses I want… a DataFrame with columns for the class number, student ID, and unique assignment titles. The assignment columns should contain the students’ highest sco…
Failed to install packages from artifactory
Tying to install packages from Artifactory in PyCharm and getting the following error. I went to Settings -> Project Interpreter -> + -> Manage Respositeries and entered the URL of the repository. But it doesn’t work. Answer This error can be a result of many issues: For some reason Artifactory…
Drawing a contour in a specific region of an image and finding the outermost contour in opencv-python
My code selects a frame from a video which is than subtracted with a background frame selected from the same video. It is then converted to grayscale, blurred, and then an image threshold is applied. Then a contour is drawn which outputs this image. However, I would only like to have the outermost contour and…
How do I make a list of imported classes in Python?
Is there a way to avoid having to call foo(x)for each imported object? Some context: a, b, c are webpage classes and foo is a route() function that creates a route for each webpage. Update: There will be a growing list of imported classes in the main module as the application grows. I mentioned a, b, and c si…