Some source code for Alejandro Piad Morffis (because Substack is pathetic when it comes to comments on posts compared to comments on Notes, I mean, WTF Substack):

import tesserax as tess
import tesserax.layout as lay

def main ():
  filename = r'C:\Demo\HCC\Python'
  # Initialize canvas...
  with tess.Canvas() as canvas:
    # One big Column of rows...
    with lay.Column(gap=0):
      # Top Margin...
      tess.Rect(size, 30, fill=None, stroke=None)
      # Rows...
      for row in range(rows):
        with lay.Row(gap=0):
          # Left Margin...
          tess.Rect(50, size, fill=None, stroke=None)
          # Columns...
          for col in range(cols):
            color = '#dfdfdf' if (row+col) % 2 else '#ff7f7f'
            tess.Square(size, fill=color, stroke='black')
  # Fit the viewport to the shapes and render
  canvas.fit(padding=pad)
  canvas.save(filename)

if __name__ == '__main__':
  print()
  main()
  print()

Generates errors when run.