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--display capture giving an error

See original GitHub issue

I’ve downloaded the latest version of the examples from this repository, they run fine on my ssd1306 screen However when I try to output to PNG files using the capture option (~/examples $ ./demo.py --display capture) I get the following error:

demo.py: error: argument --display/-d: invalid choice: 'capture' (choose from 'ssd1306', 'ssd1309', 'ssd1322', 'ssd1362', 'ssd1322_nhd', 'ssd1325', 'ssd1327', 'ssd1331', 'ssd1351', 'sh1106', 'ws0010', 'winstar_weh', 'linux_framebuffer')

I note that help shows the following:

--display DISPLAY, -d DISPLAY
                        Display type, supports real devices or emulators. Allowed values are:
                        ssd1306, ssd1309, ssd1322, ssd1362, ssd1322_nhd, ssd1325, ssd1327,
                        ssd1331, ssd1351, sh1106, ws0010, winstar_weh, linux_framebuffer (default:
                        ssd1306)

whereas the README.md for here shows quite a different list:

--display DISPLAY, -d DISPLAY
                        Display type, supports real devices or emulators.
                        Allowed values are: ssd1306, ssd1309, ssd1322,
                        ssd1362, ssd1322_nhd, ssd1325, ssd1327, ssd1331,
                        ssd1351, sh1106, ws0010, winstar_weh, pcd8544, st7735,
                        ht1621, uc1701x, st7567, ili9341, ili9486, hd44780,
                        max7219, ws2812, neopixel, neosegment, apa102,
                        unicornhathd, capture, gifanim, pygame, asciiart,
                        asciiblock, linux_framebuffer (default: ssd1306)

luma.core version info as follows:

:~ $ python3 -m pip show luma.core
Name: luma.core
Version: 2.3.1
Summary: A component library to support SBC display drivers
Home-page: https://github.com/rm-hull/luma.core
Author: Richard Hull
Author-email: richard.hull@destructuring-bind.org
License: MIT
Location: /usr/local/lib/python3.9/dist-packages
Requires: smbus2, pillow, deprecated, cbor2, pyftdi, RPI.GPIO, spidev
Required-by: luma.oled

luma.oled version info as follows:

:~ $ python3 -m pip show luma.oled
Name: luma.oled
Version: 3.8.1
Summary: A small library to drive an OLED device with either SSD1306, SSD1309, SSD1322, SSD1325, SSD1327, SSD1331, SSD1351, SSD1362, SH1106 or WS0010 chipset
Home-page: https://github.com/rm-hull/luma.oled
Author: Richard Hull
Author-email: richard.hull@destructuring-bind.org
License: MIT
Location: /usr/local/lib/python3.9/dist-packages
Requires: luma.core
Required-by:

The bit that’s esp frustrating is I managed to get it to work a month or so ago on a different unit and I can’t work out why it’s not wanting to work here! Thanks in advance for any help/advice!