Fix deprecation of the 'DEF' statement

src/pysoem/cpysoem.pxd

@@ -19,9 +19,10 @@ from libc.stdint cimport int8_t, int16_t, int32_t, int64_t, uint8_t, uint16_t, u
 
 cdef extern from "ethercat.h":
 
-    DEF EC_MAXBUF = 16
-    DEF EC_MAXMBX = 1486
-    DEF EC_BUFSIZE = 1518
+    cdef enum:
+        EC_MAXBUF = 16
+        EC_MAXMBX = 1486
+        EC_BUFSIZE = 1518
 
     ec_adaptert* ec_find_adapters()
 

src/pysoem/pysoem.pyx

@@ -141,20 +141,22 @@ class Master(CdefMaster):
     pass
 
 
+cdef enum:
+    EC_MAXSLAVE = 200
+    EC_MAXGROUP = 1
+    EC_MAXEEPBITMAP = 128
+    EC_MAXEEPBUF = EC_MAXEEPBITMAP * 32
+    EC_MAXMAPT = 8
+    EC_IOMAPSIZE = 4096
+
 cdef class CdefMaster:
     """Representing a logical EtherCAT master device.
     
     Please do not use this class directly, but the class Master instead.
     Master is a typical Python object, with all it's benefits over
     cdef classes. For example you can add new attributes dynamically.
     """
-    DEF EC_MAXSLAVE = 200
-    DEF EC_MAXGROUP = 1
-    DEF EC_MAXEEPBITMAP = 128
-    DEF EC_MAXEEPBUF = EC_MAXEEPBITMAP * 32
-    DEF EC_MAXMAPT = 8
-    DEF EC_IOMAPSIZE = 4096
-
+
     cdef cpysoem.ec_slavet        _ec_slave[EC_MAXSLAVE]
     cdef int                      _ec_slavecount
     cdef cpysoem.ec_groupt        _ec_group[EC_MAXGROUP]
@@ -604,6 +606,11 @@ class SiiOffset:
     MBX_PROTO = 0x001C
 
 
+cdef enum:
+    EC_TIMEOUTRXM = 700000
+    STATIC_SDO_READ_BUFFER_SIZE = 256
+
+
 cdef class CdefSlave:
     """Represents a slave device
 
@@ -612,9 +619,6 @@ cdef class CdefSlave:
     obtained by slaves list
     """
 
-    DEF EC_TIMEOUTRXM = 700000
-    DEF STATIC_SDO_READ_BUFFER_SIZE = 256
-
     cdef cpysoem.ecx_contextt* _ecx_contextt
     cdef cpysoem.ec_slavet* _ec_slave
     cdef CdefMasterSettings* _the_masters_settings