Cython API to import a column and a view from a DMS to another DMS

python/obitools3/dms/capi/obidms.pxd

@@ -1,6 +1,7 @@
 #cython: language_level=3
 
-from .obitypes cimport const_char_p
+from .obitypes cimport const_char_p, \
+                       obiversion_t
 
 cdef extern from "obidms.h" nogil:
     struct OBIDMS_t:
@@ -17,4 +18,5 @@ cdef extern from "obidms.h" nogil:
     char* obi_dms_get_dms_path(OBIDMS_p dms)
     char* obi_dms_get_full_path(OBIDMS_p dms, const_char_p path_name)
 
-
+    obiversion_t obi_import_column(const char* dms_path_1, const char* dms_path_2, const char* column_name, obiversion_t version_number)
+    int obi_import_view(const char* dms_path_1, const char* dms_path_2, const char* view_name_1, const char* view_name_2)

python/obitools3/dms/column/column.pyx

@@ -8,7 +8,9 @@ __OBIDMS_COLUMN_CLASS__ = {}
 
 from ..capi.obitypes cimport name_data_type, \
                              obitype_t, \
-                             OBI_BOOL
+                             obiversion_t
+ 
+from ..capi.obidms cimport obi_import_column
 
 from ..capi.obidmscolumn cimport OBIDMS_column_header_p, \
                                  obi_close_column, \
@@ -59,6 +61,15 @@ cdef class Column(OBIWrapper) :
         return __OBIDMS_COLUMN_CLASS__[(obitype, multi_elts)][1]
 
 
+    @staticmethod
+    def import_column(object dms_1, object dms_2, object column_name, obiversion_t version_number):
+        cdef obiversion_t new_version
+        new_version = obi_import_column(tobytes(dms_1), tobytes(dms_2), tobytes(column_name), version_number)
+        if new_version < 0 :
+            raise Exception("Error importing a column")
+        return new_version
+
+
     @staticmethod
     def new_column(View      view,
                    object    column_name,

python/obitools3/dms/view/view.pyx

@@ -37,6 +37,8 @@ from ..capi.obitypes cimport is_a_DNA_seq, \
                              OBI_SEQ, \
                              OBI_STR
 
+from ..capi.obidms cimport obi_import_view
+
 import importlib
 import inspect
 import pkgutil
@@ -54,6 +56,12 @@ cdef class View(OBIWrapper) :
         return __VIEW_CLASS__.get(view_type, View) 
  
  
+    @staticmethod
+    def import_view(object dms_1, object dms_2, object view_name_1, object view_name_2):
+        if obi_import_view(tobytes(dms_1), tobytes(dms_2), tobytes(view_name_1), tobytes(view_name_2)) < 0 :
+            raise Exception("Error importing a view")
+    
+    
     @staticmethod
     def new(DMS dms, 
             object view_name,