test.py

from dynamsoftservice import ScannerController, ScannerType

license_key = "LICENSE-KEY"
scannerController = ScannerController()
devices = []
host = "http://127.0.0.1:18622"

questions = """
Please select an operation:
1. Get scanners
2. Acquire documents by scanner index
3. Quit
"""


def ask_question():
    while True:
        print(".............................................")
        answer = input(questions)

        if answer == '3':
            break
        elif answer == '1':
            scanners = scannerController.getDevices(
                host, ScannerType.TWAINSCANNER | ScannerType.TWAINX64SCANNER)
            devices.clear()
            for i, scanner in enumerate(scanners):
                devices.append(scanner)
                print(f"\nIndex: {i}, Name: {scanner['name']}")
        elif answer == '2':
            if len(devices) == 0:
                print("Please get scanners first!\n")
                continue

            index = input(f"\nSelect an index (<= {len(devices) - 1}): ")
            index = int(index)  # assuming input is always a number

            if index < 0 or index >= len(devices):
                print("It is out of range.")
                continue

            parameters = {
                "license": license_key,
                "device": devices[index]["device"],
            }

            parameters["config"] = {
                "IfShowUI": False,
                "PixelType": 2,
                "Resolution": 200,
                "IfFeederEnabled": False,
                "IfDuplexEnabled": False,
            }

            job_id = scannerController.scanDocument(host, parameters)

            if job_id != "":
                images = scannerController.getImageFiles(host, job_id, "./")
                for i, image in enumerate(images):
                    print(f"Image {i}: {image}")

                scannerController.deleteJob(host, job_id)
        else:
            continue


if __name__ == "__main__":
    ask_question()