Beau­tiful Racket

• 

  Down­load and install Racket, which includes DrRacket. (Though you can edit source files using any text editor, the tuto­rials will assume you’re using DrRacket.)

• 

  Launch DrRacket. Use the File → Install Package ... command to install beautiful-racket.

• 

  Down­load and install Racket, which includes DrRacket. (Of course, you’re welcome to use your preferred text editor, but the tuto­rials will assume you’re using DrRacket.)

• 

  Update the PATH envi­ron­ment vari­able on your system to include the direc­tory that holds the racket appli­ca­tion. On Mac OS and Linux, this path will be some­thing like "/path/to/racket/bin". On Windows, it’ll be some­thing like "C:\Program Files\Racket". Then, from the terminal, you’ll be able to run racket and raco.

• 

  Mac OS users who haven’t altered your PATH before: don’t panic. Follow the instruc­tions in setting the Mac OS PATH.

• 

  Windows users who haven’t altered your PATH before: don’t panic. Follow the instruc­tions in setting the Windows PATH.

• 

  From the command line, install beautiful-racket:

  

  raco pkg install --auto beautiful-racket

  1	sh$ raco pkg install --auto beautiful-racket

  
• 

  To check that it worked, try this on the command line (the -l switch tells racket to start with a partic­ular module):

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  racket -l br/test

  1	sh$ racket -l br/test

  
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  You should see this:

  

  You installed beautiful-racket v1.6 correctly.

  1	You installed beautiful-racket v1.6 correctly.

  
  

  But if you see this:

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  open-input-file: cannot open module file
    module path: (lib "br/test")
    path: ···
    system error: no such file or directory; rktio_err=3

  1 2 3 4

  open-input-file: cannot open module file module path: (lib "br/test") path: ··· system error: no such file or directory; rktio_err=3

  
  

  Then beautiful-racket was not installed correctly. You’ll need to fix the problem before proceeding, most likely by rein­stalling beautiful-racket.

• 

  If Racket is still running, type ctrl+D or (exit) to quit.



raco pkg update --update-deps beautiful-racket

1	sh$ raco pkg update --update-deps beautiful-racket