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I will have to get back here and put in some more info, but i am testing out Sloeber as an Eclipse IDE to use for Arduino (etc) programming. Eclipse is more capable than the Arduino IDE so i wanted to give it a try. Of course, nothing works perfectly the first time you try. So here are some of the issues and fixes i encountered.

env: python3: No such file or directory

Hello, I have a similar problem derrgis but I managed to succesfully install the certifications in the directory where python 3.8 is (I have python 3.8). I have since written in the terminal cd esp8266/tools and python3 and gotten this to work succesfully as well. However I still get an error message trying to compile in the Arduino IDE. I now get the error message :

env: python3: No such file or directory exit status 127 Error compiling for board Generic ESP8266 Module.

The problem is that the symlink for python3 is incorrect. To correct it:

  $ cd /Users/[your-username]/Library/Arduino15/packages/esp8266/tools/python3/3.7.2-post1/
  $ rm python3
  $ which python3
  $ ln -s [path-returned-by-the-above-command] python3


  cd /Users/dan/Sloeber/
  mv python3 python3.OLD
  which python3
  ln -s /Library/Frameworks/Python.framework/Versions/3.7/bin/python3 python3

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