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  Execute a series of actions on touch
  touch began scene • posted

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  JonB

  How about this slight modification to the original -- should prevent the lasers from disappearing when touch ends. Also, keeps track of the lasers for use in hit detection

  from scene import * import sound import random import math class MyScene (Scene): def setup(self): self.background_color = 'midnightblue' self.ship = SpriteNode('spc:PlayerShip1Orange') self.ship.position = self.size / 2 self.add_child(self.ship) self.lasers=[] def update(self): x, y, z = gravity() pos = self.ship.position pos += (x * 15, y * 15) # Don't allow the ship to move beyond the screen bounds: pos.x = max(0, min(self.size.w, pos.x)) pos.y = max(0, min(self.size.h, pos.y)) self.ship.position = pos def touch_began(self, touch): laser_animation=Action.repeat_forever(Action.sequence(Action.call(self.fire_laser), Action.wait(0.1) ) ) self.run_action(laser_animation, 'laser') def touch_ended(self,touch): self.remove_action('laser') def remove_laser(self,laser): del self.lasers[laser] def fire_laser(self): a=random.random()*500-250 laser = SpriteNode('spc:LaserBlue9', position=self.ship.position, z_position=-1, parent=self) self.lasers.append(laser) laser.run_action(Action.sequence(Action.move_by(a, 1000), Action.remove(), Action.call(lambda:self.remove_laser(laser)))) sound.play_effect('arcade:Laser_1')
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  IDE Editor scrolling issue when selecting / clicking a line of code (Magic Keyboard + IPadOS 15)
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  Is there any keyboard shortcut for line comment in pythonista ?.
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  boing

  I use the following method to comment out code using the keyboard. It works on single and multiple lines and you don’t need to select the whole line to comment it out.

  I used the examples provided with Pythonista to create an extension script:

  import editor, console script = editor.get_text() sel_start, sel_end = editor.get_line_selection() selected_text = script[sel_start:sel_end].splitlines() r = '\n'.join('#' + i for i in selected_text) editor.replace_text(sel_start, sel_end, r)

  From there, you can add the script as an IDE extension:
  click the wrench icon at the top-right of the window. The bottom section of the popup menu that appears is reserved for extensions. Click “Edit” then the “+” icon and browse and add the script you created in the previous step.

  You can comment out lines by selecting the wrench icon and clicking the newly added icon. You can also run the extension using your keyboard if it has the Apple “Command” and “Option” keys available. Hitting Command + Option + a number on the keyboard will trigger that script. So if the extension you added is the only extension script in your IDE, you would hit Command + Option + 1.

  It should only take a few minutes to set up and then you’re good to go.

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  Question about the forum software
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  Streamlit install fails
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  JonB

  It's not obvious that those other languages will prevent it from running on pythonista-- the JavaScript is there for clients. The typescript is there either, I believe, for creation of your own components. But I don't see a reason in theory why using pre-built components wouldn't work.

  I will say that the setup.py is pretty nonstandard, and uses shell commands to do some of its job

  I'd try installing manually -- wget the archive, unzip, then move the streamlit/lib/streamlit folder to site-packages. Then try importing it, see what breaks, install those dependencies, rinse, repeat.

  I'm not sure where all of the components are supposed to get installed, maybe you pip install those.

  This requires tornado, I forget if that works on pythonista. Also, whatever is launching the browser would need to be replaced with a WebView, or maybe @mikael,'s wkwebview.

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  Multi-file project on OneDrive
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  Desktop application with Python Pyqt5 and Matplotlip (Source code)
  interface python 3 gui pyqt5 matplotlib • posted

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  ccc

  But it has nothing to do with Python on iOS which is the topic of this forum.

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  Is it possible to present an alert with multicolored text in a Pythonista script?
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  jaalburquerque

  @cvp Okay. I believe that you have both given me enough information and exemplification to achieve what I am trying to do. I believe that the code particularly will be very useful to me. Thank you both very much.

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  Custom Button Image Returns White Canvas?
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  cvp

  if you want to display an image from an url, try this little script

  import ui import requests v = ui.ImageView() url = 'https://upload.wikimedia.org/wikipedia/commons/4/4b/What_Is_URL.jpg' v.image = ui.Image.from_data(requests.get(url).content) wi,hi = v.image.size w = 400 h = w * hi/wi v.frame = (0,0,w,h) v.present('sheet')
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  Interaction between classes
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  frankL

  That works perfectly! Thank you. As always, I really appreciate your help.

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  Call script to run in background?
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  cvp

  @Bozmo try to end your script with

  os.abort()
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  Not sure how to combine ui with a plot
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  JonB

  Another approach would be to have two views that are the same size, that both use draw() -- but only call set_needs_display on the view that needs update. So, it you have 4 graphs, each controlled by different sliders, you'd only need to update the changed views.

  The thing you have to be careful with using an image view is whether you redraw the image when the view gets resized (say, when orientation changes). You can use a layout method to handle size changes, and regenerate the image if needed. Multiple views with different draw methods would get draw called automatically upon resize.

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  Shapely on Pythonista
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  JamesC

  Hi Jon,

  Thanks for your detailed reply — sounds like it's a little complex for what I want to do.

  Am using the library with some drawing code and was hoping I could use my iPad as a mobile coding station — but... guess not now.

  Thanks anyway!

  James