struct.error: unpack requires a string argument of length 4
Posted
by Thomas O
on Stack Overflow
See other posts from Stack Overflow
or by Thomas O
Published on 2010-04-10T01:12:20Z
Indexed on
2010/04/10
1:13 UTC
Read the original article
Hit count: 426
Python says I need 4 bytes for a format code of "BH":
struct.error: unpack requires a string argument of length 4
Here is the code, I am putting in 3 bytes as I think is needed:
major, minor = struct.unpack("BH", self.fp.read(3))
"B" = Unsigned char (1 byte) + "H" unsigned short (2 bytes) = 3 bytes (!?)
struct.calcsize("BH") says 4 bytes.
© Stack Overflow or respective owner
