On running a Python script in vscode with the kivy package, the error of Permission denied:'/dev/input/eventX' appears, where X is a number. To correct this error, open a terminal window and enter the following command: $ sudo chmod u+r /dev/input/eventX <enter> Above is only for one time execution. Error will repeat again if code is … Continue reading How to fix Error Permission denied:’/dev/input/eventX’ running kivy app in Linux
How to fix error in vscode of “kivy.uix.label” could not be resolved
This error can be overcome by selecting the right python environment by clicking next to Python in the status bar of vscode. The Python application was running the global python environment where kivy was not installed. After changing to pipenv of the project as per image below in vscode, it worked.
How to create a python virtual environment for a project in Linux
Python interpreters can be installed globally system-wide or as a virtual environment within a project folder. The advantage of within a virtual environment is isolation of the packages from system-wide use and execution. To set up a virtual environment for a project, open a terminal window and enter the following commands: $ sudo apt-get install … Continue reading How to create a python virtual environment for a project in Linux
The Quest for A Good IDE for Python Coding on Linux
In order to write code or learn programming or coding in Python, a good IDE was needed to take out the pain from looking up functions, keywords and more. The short list below were tried out before finally choosing one that best suited the purpose. Geany Eclipse PyCharm Spyder vscode Whilst it made sense to … Continue reading The Quest for A Good IDE for Python Coding on Linux
How to convert PNG images in a directory to JPG using Python
To convert several PNG images to JPG images, the convert command in Linux was not good enough and gave errors. It seems it could not process the large volume of PNG files. Therefore, the image files were converted from PNG to JPG using Python using the following code. Before using the code, Python 3 gave … Continue reading How to convert PNG images in a directory to JPG using Python
How to replace line feeds in a text file with Python
The below Python code will replace line feeds in a text file with space or replace consecutive line feeds with one line feed. I named this replacelf.py. # file outtext in the current directory file_path = r"./outtext" # Note that the file has to be opened in binary mode. with open(file_path, "rb") as open_file: #read … Continue reading How to replace line feeds in a text file with Python
Enable LinkedIn two factor authentication (2FA) with FreeOTP authenticator app
LinkedIn allows a user to enable two factor authentication (2FA) with an authenticator app. However, it displays a secret key and does not display a QR code for scanning by the FreeOTP app. To correctly use the FreeOTP app, an entry for LinkedIn has to be added manually in FreeOTP as follows:- Enter the user … Continue reading Enable LinkedIn two factor authentication (2FA) with FreeOTP authenticator app
How to view heic format files in Linux Mint or Debian Linux
To view heic or heif format files in Debian Linux open a terminal window and enter below command:$ sudo apt-get install heif-gdk-pixbuf <enter> Now the default image viewer (ristretto, etc) will automatically be able to open these files. Without heif-gdk-pixbuf, the default application to open HEIC format files was gimp.
How to display stock prices with decimals in Gnucash
Gnucash displays stock prices within the account as 47 + 22398/55939.To display them with decimal points, from the main menu, select Edit -> Preferences -> Numbers, Date, Time and check the box that says "Force Prices to display as decimals". When you double click on the account to make entries, the stock price will be … Continue reading How to display stock prices with decimals in Gnucash
How to sort and rename files in Python on Linux and use tesseract OCR to extract text to a file
In order to convert a series of images with text as an image in them to text files, the best tool is tesseract. It is quite old, but very reliable when it comes to looking for and extracting text from images. After saving some screen shots as jpg files, it was found their names contained … Continue reading How to sort and rename files in Python on Linux and use tesseract OCR to extract text to a file
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