Paul Sutton

Programming

Open CV Tutorial

Open Computer Vision Tutorial. This looks interesting and something else to have an experiment with at some point. Would also be good at the Paignton Library STEM group meetings.

Posted to Mastodon on 23/12/2021 by Danie

Links

Tags

#technology #opensource #programming #coding #Python #OpenCV

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Book on Haskell

If anyone is interested in learning Haskell, then this book may interesting :-

Links

Tags

#Coding,#Programming,#Language,#Haskell

Code Club Saturday 6th November part 2

I spent about ½ an hour on Friday setting up and preparing for Code Club, here are a few photos of the room all set up and ready to go.

Photo 1

Photo 2

Photo 3

Links

Tags

#Paignton,#Library,#CodeClub,#Coding,#Programming,#Scratch,#HTML,#Python,#More,#Tech

Code Club Saturday 6th November

The next Paignton Library Code Club is Saturday 6th November 2021. Usual time.

We will just carry on from where we left off last time, catch up on what has been undertaken since the last code club.

Links

Tags

#Paignton,#Library,#CodeClub,#Coding,#Programming,#Scratch,#HTML,#Python,#More,#Tech

Code Club 4/10/2021

I am back at Code Club today, 2nd session since our return. If you are still not sure what Code Club is, then you have clearly being living in a cave since about 2012. Anyway, it is a coding club for children, generally 9-13 years of age.

The Paignton Club is a little more advanced, in that some of the attendees are working through a responsive web design course.

It would be really good to get MORE code clubs in Torbay, and in fact would be really nice if those clubs could collaborate, share expertise, maybe some resources.

Links

Tags

#Coding,#Programming,#Scratch,#Python,#HTML,#CSS,#Python,#MicroBit,#RaspberryPi,#Lego,#FreeCodeCamp,#More

Write your own compiler

Another post found on Mastodon. This was posted by Dr. Brian Callahan.

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Tags

#Write,#Own,#Compiler,#Programming,#Blog,#coding #code #program #programming #compiler #compile #compilers

Tilde – text editor

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Tilde is a nice, curses based text editor. It is useful for if you are at the console or terminal in Linux and want a menu driven editor.

tilde

While other tools are more command driven (nano, emacs, vi, vim and joe to name a few). Tilde is being mentioned for those of you who may find it useful

As you would expect with a modern editor, tilde has support for syntax highlighting.

Tilde Syntax Highlighting

Which is really useful for programming or editing website code for example.

REFERENCES

TAGS

#YearOfTheFediverse,#Linux,#TextEditor,#Editor,#Text, #Tilde,#Programming,#SyntaxHighlighting,#console, #terminal

Creative Commons Licence
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License

Ansi Weather

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Getting weather information is really useful. What happens if you're at the command line in Linux? I found a really little application that can help

ansiweather

apt install ansiweather

ansiweather -l Plymouth, UK

Ansi Weather Output

So what else can we do with this

  1. Send the output to Mastodon with toot post

This is a two step process

  1. ansiweather -l Plymouth, UK > weather.txt
  2. toot post < weather.txt

Will send the weather info to Mastodon.

However this does not include any date info

We can fix this with

  1. date > weatherinfo.txt
  2. ansiweather -l Plymouth, UK >> weatherinfo.txt

then send the whole lot to Mastodon with

  1. toot post < weatherinfo.txt

So, if we put this in to a final shell script we need:-

#send weather info to Mastodon
# current date
date > weatherinfo.txt
# current weather
ansiweather -l Plymouth, UK >> weatherinfo.txt
#send to Mastodon
toot post < weatherinfo.txt
# done
echo done

Again released under GPLv3

I tried to get festival to speak the weather, it is not perfect but this sort of works, you will need to direct to weather.txt first.

festival —tts < weather.txt

Looking in to this further, the issue is the brackets etc, so this stackoverflow post

strips out the colour formatting

sed 's/\x1b[[^\x1b]*m//g' weatherinfo.txt

Therefore

sed 's/\x1b[[^\x1b]*m//g' weatherinfo.txt > weatherinfo2.txt

Sends the newly formatted text to weatherinfo2.txt

So running back through festival

festival —tts < weather.txt

Is perhaps a little better, but not perfect

So going back to what we wrote earlier to send to Mastodon, the new script

  1 #send weather info to Mastodon
  2 # current date
  3 date > weatherinfo.txt
  4 # current weather
  5 ansiweather -l Plymouth, UK >> weatherinfo.txt
  6 # clean up output with sed
  7 sed 's/\x1b\[[^\x1b]*m//g' weatherinfo.txt > weatherinfo2.txt
  8 #send to Mastodon
  9 toot post < weatherinfo2.txt
 10 # done
 11 echo done

Produces much nicer output. The top bottom part of this illustrates what was sent before we stripped out the colour formatting

However it still isn't perfect, as it removes part some of the wording, but it is hopefully getting there.

Weather Output (new)

REFERENCES

TAGS

#YearOfTheFediverse,#Weather,#Scripting,#Bash,#Linux, #Mastodon,#ProblemSolving,#AnsiWeather,#programming, #Stackoverflow,#sed,#cat,#grep,GPL3,#FSF

Creative Commons Licence
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License

Contribute to f-droid

This was originally shared on Mastodon, so am sharing here for any of my followers who may be interested.

  • F-droid is looking for project contributors. There is a good article here with some more information.

The contribution page is also here

Looks like lots of opportunities to get involved. If you are interested you can also get in touch with IzzyOnDroid.

You can join Mastodon here then connect with IssyOnDroid and ask how to get involved.

I am on Mastodon here

#freesoftware,#fdroid,#contribution,#foss,#repository, #android,#technology,#programming,#testing,#docs, #development,#software