Dulani

# Add to .bashrc for Python binaries:

# Python and pip3
export PATH="${PATH}:/home/{username}/.local/bin"

Dulani

Convert audio file to video file for uploading to MS Stream, YouTube, etc.

Source:

• https://www.reddit.com/r/ffmpeg/comments/gzkrgt/convert_m4a_to_mp4_or_any_video_format_to_upload/

Install ffmpeg (on a Mac):

brew install ffmpeg --with-libvorbis --with-sdl2 --with-theora

Use ffmpeg for the conversion:

Dulani

(* 
Use AppleScript to repeatedly click some part of the screen on a Mac 50 times with a 2 second pause between clicks (use on poorly designed applications that don't let you repeat a certain action).
https://apple.stackexchange.com/questions/266784/how-do-i-make-the-mouse-click-at-current-location-using-applescript
Comment: To supplement @jksoegaard's answer: one can also find cursor positions using "Screenshot" tool, which may be activated by Cmd+Shift+4 shortcut. Then just point the cursor to any area and remember the numbers that is shown near the pointer.
*)

repeat 50 times
	
	tell application "System Events"
		click at {1073, 373}

Dulani

Donkey Car Install on Raspberry Pi3

Following these instructions: https://docs.donkeycar.com/guide/robot_sbc/setup_raspberry_pi/

When you get this far... pip install opencv-python

And this fails.... python -c "import cv2"

Dulani

#!/usr/bin/env python

"""
Stitch multiple files worth of AWS transcripts together.
Does not attempt to match speakers across filesm but does label all speaker changes.
Usage:

    python stitch_transcript.py *.mp3.json -o out.txt

See blog post: http://turtlemonvh.github.io/aws-transcribe-for-long-zoom-meetings.html

Dulani

OneDrive for Mac is having huge issues so I'm trying to move the files out of its folder and start over again... but I'm being blocked by extended attributes named: com.apple.fileutil.PlaceholderData.

You can see them with: ls -alh@e or xattr <dir name>

Example: https://www.reddit.com/r/onedrive/comments/dk8hcx/onedrive_on_macos_is_adding_extendedfile/

Remove them:

sudo xattr -rd com.apple.fileutil.PlaceholderData <dir name> 

Dulani

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1. A numbered
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Dulani

# Save a dictionary into a pickle file.
# https://wiki.python.org/moin/UsingPickle
import pickle

favorite_color = { "lion": "yellow", "kitty": "red" }
pickle.dump( favorite_color, open( "test.pickle", "wb" ))

# Load the dictionary back from the pickle file.
more_favorite_colors = pickle.load(open( "test.pickle", "rb" ))
# favorite_color is now { "lion": "yellow", "kitty": "red" }

Dulani

import sys
debug = True

def exceptionHandler(exception_type, exception, traceback, debug_hook=sys.excepthook):
    '''Print user friendly error messages normally, full traceback if DEBUG on.
       Adapted from http://stackoverflow.com/questions/27674602/hide-traceback-unless-a-debug-flag-is-set
    '''
    if debug:
        print('\n*** Error:')
        # raise

Dulani

Using arbitrary Leaflet JS plugins with Leaflet for R

The Leaflet JS mapping library has lots of plugins available. The Leaflet package for R provides direct support for some, but far from all, of these plugins, by providing R functions for invoking the plugins.

If you as an R user find yourself wanting to use a Leaflet plugin that isn't directly supported in the R package, you can use the technique shown here to load the plugin yourself and invoke it using JS code.