You might have to do it yourself using pack, but it does give you 16 & 32 bit ints in both big-endian & little-endian.

#from the docs
  n  An unsigned short (16-bit) in "network" (big-endian) order.
  N  An unsigned long (32-bit) in "network" (big-endian) order.
  v  An unsigned short (16-bit) in "VAX" (little-endian) order.
  V  An unsigned long (32-bit) in "VAX" (little-endian) order.
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