带有字符串作为数据类型的python array.array

Question

Is there an object that acts like array.array, yet can handle strings (or character arrays) as its data type?

It should be able to convert the string array to binary and back again, preferably with null terminated strings, however fixed length strings would be acceptable.

>>> my_array = stringarray(['foo', 'bar'])
>>> my_array.tostring()
'foo\0bar\0'
>>> re_read = stringarray('foo\0bar\0')
>>> re_read[:]
['foo', 'bar']

I will be using it with arrays that contain a couple million strings.

Answer 1

Simply use a standard Python list:

def list_to_string(lst):
    return "\0".join(l) + "\0"

def string_to_list(s):
    return s.split("\0")[:-1]