pythonでバイナリデータを2進数にした後、いろいろ操作する方法をまとめてみた。 いろいろ操作した後にバイナリデータや整数に変換する方針にしている。正しいのかな？
import sys
def main():
binary_data = b'\x08'
# binary_data = b'\x48\x65\x6c\x6c\x6f'
data = int.from_bytes(binary_data, sys.byteorder)
binary_num = to_binary_number(data,10)
binary_num = bit_slice(binary_num,4,2)
print (binary_num)
binary_num += create_0(5)
print (binary_num)
def to_binary_number(data,bit_width):
binary_number = format(data,"0"+str(bit_width)+"b")
return binary_number
def create_0(num):
return str("0"*int(num))
def bit_slice(binary_num,msb,lsb):
data_len = len(binary_num)
if data_len < msb+1:
print ("[ ERROR ] msb is bigger than binary_num width")
return -1
if msb < lsb:
print ("[ ERROR ] msb is less than lsb")
return -1
first_pos = data_len - msb - 1
last_pos = data_len - lsb - 1
return binary_num[first_pos:last_pos+1]
if __name__ == "__main__":
main()
