[pytables-users] trying to save a byte array to VLArray..

[Sridhar Anandakrishnan]

Hi, I'm trying to save a byte array whose length is unknown beforehand.

I tried a VLArray, with a VLStringAtom (see below). It will store strings
but not byte arrays - what is the best way to store bytes in pytables?

pytables version is 3.1.1
and python is 3.4.2

Thanks,
Sridhar

vlsatom = tb.VLStringAtom()
vls = ststf.createVLArray(ststf.root, 'vlsarr', vlsatom, 'VLS array')
vls

Out[55]:
/vlsarr (VLArray(0,)) 'VLS array'
atom = VLStringAtom()
byteorder = 'little'
nrows = 0
flavor = 'numpy'

In [57]:

vls.append(b'abc')

TypeError: object is not a string: b'abc'


In [58]:

vls.append('xyz')

vls[0]

Out[60]:
b'xyz'