Python script to check raspberry pi SD card health

checksdcard.py

#!/usr/bin/python3
import os


def writeSomeBytesSucceed(datas):
    filepath = "/sdCardTest.raw"
    testpattern = bytes(datas)
    writer = open(filepath, "wb", buffering=0)
    writer.write(testpattern)
    writer.close()

    reader = open(filepath, "rb", buffering=0)
    reader.seek(0)
    testpattern_read = reader.read(8)
    result = testpattern_read == testpattern
    reader.close()
    os.remove(filepath)
    return result


if writeSomeBytesSucceed([0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55]) is False or writeSomeBytesSucceed(
        [0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa]) is False:
    print("ERROR writing test pattern !")
    exit(1)