Cadsoft Eagle with Python Scripting

Does anyone know if this works with eagle 7.7?

Rick

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rickb wrote on Fri, 17 February 2017 14:43

Does anyone know if this works with eagle 7.7?

Do you mean the Python scripting?  I've mainly used it with version 5 and

6.  I'll try to test it with version 7 this weekend...

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On 21.02.2017 19:17, Doug Wellington wrote:

I considered using PyQt for the GUI, but the licensing didn't work for me, so

at that point, I switched to using Java.

For a more liberal license, you should have considered wxPython instead.

Python seems a much more natural choice for these tasks than Java.

Also, it would allow for easier integration if you really want to

migrate to KiCad. The PCB part of KiCad has a Python console already.

I would expect the Schematic part to follow sooner or later.

Regards,

Dietmar

Dietmar Schwertberger wrote on Wed, 22 February 2017 12:32

For a more liberal license, you should have considered wxPython

instead.

Thanks, part of my issue is that I was also writing in C++ and I didn't

want to have to release that source code.  It's my code, I wrote it and I

want to keep it private.  Over the years I have grown weary of people

contacting me demanding my source code, my schematic and board files, and

my gerbers.  It's hard to make your investment back when someone can grab

your work and match or beat your time to market and undermine your pricing.

Anything with GPL licensing is out for me because of that

Quote:

Python seems a much more natural choice for these tasks than Java.

For scripting, rapid prototyping and as a language to use for teaching,

Python is fantastic.  Because of it being interpreted though, there is no

way to effectively control your IP.

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Dietmar Schwertberger wrote on Wed, 22 February 2017 12:32

For a more liberal license, you should have considered wxPython

instead.

Thanks, part of my issue is that I was also writing in C++ and I didn't

want to have to release that source code.  It's my code, I wrote it and I

want to keep it private.  Over the years I have grown weary of people

contacting me demanding my source code, my schematic and board files, and

my gerbers.  It's hard to make your investment back when someone can grab

your work and match or beat your time to market and undermine your pricing.

Anything with GPL licensing is out for me because of that

Quote:

Python seems a much more natural choice for these tasks than Java.

For scripting, rapid prototyping and as a language to use for teaching,

Python is fantastic.  Because of it being interpreted though, there is no

way to effectively control your IP.

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Also, switching to the Java world lets me use Groovy, Scala, Clojure, and

even Jython or JRuby all together...

FWIW, the Java ecosystem is fantastic.  The build, test, code analysis,

continuous integration, etc., tools are great!

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Also, switching to the Java world lets me use Groovy, Scala, Clojure, and

even Jython or JRuby all together...

FWIW, the Java ecosystem is fantastic.  The build, test, code analysis,

continuous integration, etc., tools are great!

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On 22.02.2017 20:55, Doug Wellington wrote:

Dietmar Schwertberger wrote on Wed, 22 February 2017 12:32

Thanks, part of my issue is that I was also writing in C++ and I didn' > want to have to release that source code.  It's my code, I wrote it

and I> want to keep it private.  Over the years I have grown weary of people

Put your core C++ code into a .pyd (i.e. actually a DLL).

Still you can control your code from Python, offering a scripting

interface without much effort.

contacting me demanding my source code, my schematic and board files, and

my gerbers.  It's hard to make your investment back when someone can grab

your work and match or beat your time to market and undermine your pricing.

Anything with GPL licensing is out for me because of that

The wx license is not GPL. It is LGPL, but even allows to distribute

binaries on your own terms. So basically, it's not much different from

MIT, BSD or similar licenses for any practical application.

For scripting, rapid prototyping and as a language to use for teaching,

Python is fantastic.

It's also a great language to implement large applications, either GUI

or web based. Implementing GUIs in C++ seems to be a huge waste of

resources. The learning curve for GUIs is a bit steep, just as for C++.

For this reason I started improving the wxGlade GUI builder last year.

If you go for wx, you should have a look at the current wxGlade version

from the repository.

(Documentation update is work in progress and not yet online.)

Because of it being interpreted though, there is no

way to effectively control your IP.

Well, there are ways, but these are a bit complicated. I have one

application where I'm using a dongle for Python code and .pyd extensions.

But protection of the Python code requires a custom Python runtime.

For extension of other people's code, that's probably not an option.

On the other hand, don't forget that Python bytecode might be easier

to decompile, but it's also possible for C++ code. I think there are

quite powerful reverse engineering tools for compiled binaries.

Regards,

Dietmar

On 22.02.2017 21:08, Doug Wellington wrote:

FWIW, the Java ecosystem is fantastic.  The build, test, code analysis,

continuous integration, etc., tools are great!

For things like graphics, hardware interfacing, file formats,

networking, GUIs etc. I found that development at the interpreter

console provides the biggest boost in productivity.

The only comparable language that I know, is Forth. But that one is

a bit too special for most people...

Regards,

Dietmar

On 22.02.2017 21:08, Doug Wellington wrote:

FWIW, the Java ecosystem is fantastic.  The build, test, code analysis,

continuous integration, etc., tools are great!

For things like graphics, hardware interfacing, file formats,

networking, GUIs etc. I found that development at the interpreter

console provides the biggest boost in productivity.

The only comparable language that I know, is Forth. But that one is

a bit too special for most people...

Regards,

Dietmar

Dietmar Schwertberger wrote on Wed, 22 February 2017 13:16

Put your core C++ code into a .pyd (i.e. actually a DLL).  Still you

can control your code from Python, offering a scripting interface without

much effort.

Yes, I use Python for the GUI and scripting, and the C++ is for the

rendering and math functions (using a GPU).

Quote:

The wx license is not GPL. It is LGPL, but even allows to distribute

binaries on your own terms. So basically, it's not much different from

MIT, BSD or similar licenses for any practical application.

That is very nice.

Quote:

(Python is) also a great language to implement large applications,

either GUI or web based.

Yes, I agree.  At my "real" job during the day, I use Python and QT for

large applications every day.

Quote:

If you go for wx, you should have a look at the current wxGlade version

from the repository.

I will definitely look at that.  Thank you...

Quote:

I think there are quite powerful reverse engineering tools for compiled

binaries.

I have no illusions that a determined person would not be able to reverse

engineer my work.  If they wish to go through that effort, that is up to

them, but since I either give my tools away for free or charge a very small

amount of money, I hope it is not worth their trouble.

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Dietmar Schwertberger wrote on Wed, 22 February 2017 13:36

For things like graphics, hardware interfacing, file formats,

networking, GUIs etc. I found that development at the interpreter console

provides the biggest boost in productivity.

Yes!  It's quite fun to use pyqt from the ipython prompt to interactively

show and hide or manipulate various parts of my GUI.

You can do similar things with various JVM languages that have REPLs.  For

example, here's some Scala typed into the Ammonite REPL to create a popup

window with a single button:

@ {

  import javax.swing._, java.awt.event._

  val frame = new JFrame("Hello World Window")

  val button = new JButton("Click Me")

  button.addActionListener(new ActionListener{

    def actionPerformed(e: ActionEvent) = button.setText("You clicked the

button!")

  })

  button.setPreferredSize(new java.awt.Dimension(200, 100))

  frame.getContentPane.add(button)

  frame.pack()

  frame.setVisible(true)

  }

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Dietmar Schwertberger wrote on Wed, 22 February 2017 13:36

For things like graphics, hardware interfacing, file formats,

networking, GUIs etc. I found that development at the interpreter console

provides the biggest boost in productivity.

Yes!  It's quite fun to use pyqt from the ipython prompt to interactively

show and hide or manipulate various parts of my GUI.

You can do similar things with various JVM languages that have REPLs.  For

example, here's some Scala typed into the Ammonite REPL to create a popup

window with a single button:

@ {

  import javax.swing._, java.awt.event._

  val frame = new JFrame("Hello World Window")

  val button = new JButton("Click Me")

  button.addActionListener(new ActionListener{

    def actionPerformed(e: ActionEvent) = button.setText("You clicked the

button!")

  })

  button.setPreferredSize(new java.awt.Dimension(200, 100))

  frame.getContentPane.add(button)

  frame.pack()

  frame.setVisible(true)

  }

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