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- import requests
- from functools import partial
- from itertools import cycle
- from random import randint
- from typing import Any
- # todo: convert_func definiert den Typen des Rückgabewerts der Funktion isu
- _global_cid_generator = cycle(range(1, 0xFFFFFFFF))
- def convert_hex(x: str) -> int:
- return int(x, 16)
- def convert_not[T](x: T) -> T:
- return x
- def isu(ip, index: int, subindex: int = 0, convert_func=convert_not, cid_generator=_global_cid_generator) -> Any:
- cid = next(cid_generator)
- response = requests.post(
- url=f"http://{ip}/iolinkmaster",
- json={
- "code": "request",
- "cid": cid,
- "adr": "/iolinkmaster/port[2]/iolinkdevice/iolreadacyclic",
- "data": {
- "index": index,
- "subindex": subindex,
- },
- },
- )
- response.raise_for_status()
- data = response.json()
- try:
- if int(data.get("code")) != 200:
- raise RuntimeError("code != 200", data)
- except ValueError:
- raise RuntimeError("code is not an integer", data)
- if data.get("cid") != cid:
- raise RuntimeError("Got wrong answer", data)
- return convert_func(data["data"]["value"])
- isu("192.168.0.3", 542)
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