This gist is intended to be used with the DrawBot app to test your Variable Fonts in an easy way

varFontDrawBotTest.py

# This gist is intended to be used with the DrawBot app to test your Variable Fonts in an easy way

x, y = 1920, 1080 # Set your canvas width and Height 

myFont = '/path/VarFont.ttf' # Paste the path of your font 
installFont(myFont) # Install the font
print(listFontVariations(myFont)) # Get the Data of your variable font
# Set variables for the axes you want to try
minVal = listFontVariations(myFont)['wght']['minValue'] 
maxVal = listFontVariations(myFont)['wght']['maxValue']

newPage(x, y) # Draw your Canvas
# Set your Slider(s)
Variable(
        [dict(
            name="Weight",
            ui="Slider",
            args=dict(value=1, minValue = minVal, maxValue = maxVal))],
        #To add an extra axis, uncomment the code bellow and erase the closing square bracket before this comment
        #dict(
            #name="Height",
            #ui="Slider",
            #args=dict(value=2, minValue = minHeight, maxValue = maxHeight))],
        globals()
        )

font(myFont)
fontSize(300)
fontVariations(wght = Weight)
text("Test text", (x/2,y/2), align=('center'))   

font('Menlo')
fontSize(40)
fontVariations(resetVariations=True)
text('wght = {0}'.format(Weight), (x/2, y*0.2), align=('center'))

uninstallFont(myFont) # Uninstall the font