Прошло 2 года.

lib/epdiy/examples/http-server/send_image.py

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+#!/usr/bin/env python3
+import argparse
+import requests
+from typing import NamedTuple
+import PIL
+import PIL.Image
+
+
+def parse_args():
+    parser = argparse.ArgumentParser()
+    parser.add_argument("hostname")
+    subparsers = parser.add_subparsers(dest="command")
+    clear_parser = subparsers.add_parser("clear")
+    draw_parser = subparsers.add_parser("draw")
+    draw_parser.add_argument("-c", "--clear", action="store_true")
+    draw_parser.add_argument("file")
+    info_praser = subparsers.add_parser("info")
+
+    return parser.parse_args()
+
+
+def clear(hostname):
+    requests.post(f"http://{hostname}/clear").raise_for_status()
+
+
+class EpdInfo(NamedTuple):
+    width: int
+    height: int
+    temperature: int
+
+    @classmethod
+    def from_response(cls, resp):
+        return cls(
+            width=int(resp.headers["width"]),
+            height=int(resp.headers["height"]),
+            temperature=int(resp.headers["temperature"]),
+        )
+
+
+class Dimensions(NamedTuple):
+    width: int
+    height: int
+
+
+def info(hostname):
+    resp = requests.get(f"http://{hostname}")
+    resp.raise_for_status()
+    return EpdInfo.from_response(resp)
+
+
+def image_refit(image: PIL.Image, bounder: Dimensions) -> PIL.Image:
+    bounder_ratio = bounder.width / bounder.height
+    image_width, image_height = image.size
+
+    image_width_by_height = int(image_height * bounder_ratio)
+    image_height_by_width = int(image_width / bounder_ratio)
+    if image_width > image_width_by_height:
+        new_dimensions = Dimensions(image_width_by_height, image_height)
+    else:
+        new_dimensions = Dimensions(image_width, image_height_by_width)
+    return PIL.ImageOps.fit(image, new_dimensions)
+
+
+def convert_8bit_to_4bit(bytestring):
+    fourbit = []
+    for i in range(0, len(bytestring), 2):
+        first_nibble = int(bytestring[i] / 17)
+        second_nibble = int(bytestring[i + 1] / 17)
+        fourbit += [first_nibble << 4 | second_nibble]
+    fourbit = bytes(fourbit)
+    return fourbit
+
+
+def draw(hostname, filename, clear):
+    inf = info(hostname)
+    img = PIL.Image.open(filename)
+    img = image_refit(img, Dimensions(width=inf.width, height=inf.height))
+    img = img.resize((inf.width, inf.height))
+    img = img.convert("L")
+    img_bytes = convert_8bit_to_4bit(img.tobytes())
+    requests.post(
+        f"http://{hostname}/draw",
+        headers={
+            "width": str(inf.width),
+            "height": str(inf.height),
+            "x": "0",
+            "y": "0",
+            "clear": "1" if clear else "0",
+        },
+        data=img_bytes,
+    )
+
+
+def main():
+    args = parse_args()
+    if args.command == "clear":
+        clear(args.hostname)
+    elif args.command == "info":
+        print(info(args.hostname))
+    elif args.command == "draw":
+        draw(args.hostname, args.file, args.clear)
+    else:
+        raise Exception(f"Unknown command {args.command}")
+
+
+if __name__ == "__main__":
+    main()