Cython: Columns: goes with handling of JSON formatted comments

python/obitools3/dms/capi/obidmscolumn.pxd

@@ -64,4 +64,7 @@ cdef extern from "obidmscolumn.h" nogil:
     char* obi_get_elements_names(OBIDMS_column_p column)
     
     index_t obi_column_get_element_index_from_name(OBIDMS_column_p column, const char* element_name)
+    
+    int obi_column_write_comments(OBIDMS_column_p column, const char* comments)
 
+    int obi_column_add_comment(OBIDMS_column_p column, const char* key, const char* value)

python/obitools3/dms/column/typed_column/bool.pyx

@@ -39,7 +39,7 @@ cdef class Column_bool(Column):
             index_t nb_elements_per_line=1,
             object  elements_names=None,
             bint    tuples=False,
-            object  comments=b""):
+            object  comments={}):
         return Column.new_column(view, column_name, OBI_BOOL,
                           nb_elements_per_line=nb_elements_per_line, 
                           elements_names=elements_names, 

python/obitools3/dms/column/typed_column/char.pyx

@@ -37,7 +37,7 @@ cdef class Column_char(Column):
             index_t nb_elements_per_line=1,
             object  elements_names=None,
             bint    tuples=False,
-            object  comments=b""):
+            object  comments={}):
         
         return Column.new_column(view, column_name, OBI_CHAR,
                                  nb_elements_per_line=nb_elements_per_line, 

python/obitools3/dms/column/typed_column/float.pyx

@@ -37,7 +37,7 @@ cdef class Column_float(Column):
             index_t nb_elements_per_line=1,
             object  elements_names=None,
             bint    tuples=False,
-            object  comments=b""):
+            object  comments={}):
         
         return Column.new_column(view, column_name, OBI_FLOAT,
                                  nb_elements_per_line=nb_elements_per_line, 

python/obitools3/dms/column/typed_column/int.pyx

@@ -39,7 +39,7 @@ cdef class Column_int(Column):
             index_t nb_elements_per_line=1,
             object  elements_names=None,
             bint    tuples=False,
-            object  comments=b""):
+            object  comments={}):
         
         return Column.new_column(view, column_name, OBI_INT,
                                  nb_elements_per_line=nb_elements_per_line, 

python/obitools3/dms/column/typed_column/qual.pyx

@@ -40,7 +40,7 @@ cdef class Column_qual(Column_idx):
             object  elements_names=None,
             object  associated_column_name=b"",
             int     associated_column_version=-1,
-            object  comments=b""):
+            object  comments={}):
         
         return Column.new_column(view, column_name, OBI_QUAL,
                                  nb_elements_per_line=nb_elements_per_line, 

python/obitools3/dms/column/typed_column/seq.pyx

@@ -40,7 +40,7 @@ cdef class Column_seq(Column_idx):
             index_t nb_elements_per_line=1,
             object  elements_names=None,
             bint    tuples=False,
-            object  comments=b""):
+            object  comments={}):
         
         return Column.new_column(view, column_name, OBI_SEQ,
                                  nb_elements_per_line=nb_elements_per_line, 

python/obitools3/dms/column/typed_column/str.pyx

@@ -39,7 +39,7 @@ cdef class Column_str(Column_idx):
             index_t nb_elements_per_line=1,
             object  elements_names=None,
             bint    tuples=False,
-            object  comments=b""):
+            object  comments={}):
         
         return Column.new_column(view, column_name, OBI_STR,
                                  nb_elements_per_line=nb_elements_per_line,