Fix Python host-endianness dependencies (#7773)

* In Python tests, use host-endian-independent dtypes

* Fix host endianness dependence in Python flexbuffers

Co-authored-by: Derek Bailey <derekbailey@google.com>

1 files changed, 5 insertions, 5 deletions

diff --git a/python/flatbuffers/flexbuffers.py b/python/flatbuffers/flexbuffers.py
index aaa02fda..34d42a69 100644
--- a/python/flatbuffers/flexbuffers.py
+++ b/python/flatbuffers/flexbuffers.py
@@ -75,7 +75,7 @@ class BitWidth(enum.IntEnum):
   @staticmethod
   def F(value):
     """Returns the `BitWidth` to encode floating point value."""
-    if struct.unpack('f', struct.pack('f', value))[0] == value:
+    if struct.unpack('<f', struct.pack('<f', value))[0] == value:
       return BitWidth.W32
     return BitWidth.W64
 
@@ -95,20 +95,20 @@ F = {4: 'f', 8: 'd'}  # Floating point formats
 
 
 def _Unpack(fmt, buf):
-  return struct.unpack(fmt[len(buf)], buf)[0]
+  return struct.unpack('<%s' % fmt[len(buf)], buf)[0]
 
 
 def _UnpackVector(fmt, buf, length):
   byte_width = len(buf) // length
-  return struct.unpack('%d%s' % (length, fmt[byte_width]), buf)
+  return struct.unpack('<%d%s' % (length, fmt[byte_width]), buf)
 
 
 def _Pack(fmt, value, byte_width):
-  return struct.pack(fmt[byte_width], value)
+  return struct.pack('<%s' % fmt[byte_width], value)
 
 
 def _PackVector(fmt, values, byte_width):
-  return struct.pack('%d%s' % (len(values), fmt[byte_width]), *values)
+  return struct.pack('<%d%s' % (len(values), fmt[byte_width]), *values)
 
 
 def _Mutate(fmt, buf, value, byte_width, value_bit_width):