overload the decode function with param of file buff

[zeroleo12345]

nowadays the function "decode" only with param of filename,
Please consider overload the decode function with the param of raw buff.

[VeNoMouS]

@zeroleo12345 use io.BytesIO() from io

ie, saving with PILLOW to the io object

our_image = io.BytesIO()

im.save(our_image, format="PNG")

qr = qrtools.QR()
qr.decode(our_image)
print qr.data