memory - Python str view -

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i have huge str of ~1gb in length:

>>> len(l) 1073741824

i need take many pieces of string specific indexes until end of string. in c i'd do:

char* l = ...; char* p1 = l + start1; char* p2 = l + start2; ...

but in python, slicing string creates new str instance using more memory:

>>> id(l) 140613333131280 >>> p1 = l[10:] >>> id(p1) 140612259385360

to save memory, how create str-like object in fact pointer original l?

edit: have buffer , memoryview in python 2 , python 3, memoryview not exhibit same interface str or bytes:

>>> l = b"0" * 1000 >>> = memoryview(l) >>> b = memoryview(l) >>> < b traceback (most recent call last):   file "<stdin>", line 1, in <module> typeerror: unorderable types: memoryview() < memoryview()  >>> type(b'') <class 'bytes'> >>> b'' < b'' false >>> b'0' < b'1' true

there memoryview type:

>>> v = memoryview('potato') >>> v[2] 't' >>> v[-1] 'o' >>> v[1:4] <memory @ 0x7ff0876fb808> >>> v[1:4].tobytes() 'ota'

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