diff --git a/include/lang/py/py.js b/include/lang/py/py.js
index 0edbf64e..fd33f22a 100644
--- a/include/lang/py/py.js
+++ b/include/lang/py/py.js
@@ -353,7 +353,7 @@ LangPy.prototype.initRunTimeState = function (reboot) {
 };
 
 function runtime_print(msg, rte) {
-    rte.vm.replAddTranscript(msg + '\n', 'cb-repl-output');
+    rte.vm.replAddTranscript(msg, 'cb-repl-output');
     rte.vm.lang.refreshUI();
 };
 
diff --git a/pyinterp/pyinterp/pyinterp/__init__.py b/pyinterp/pyinterp/pyinterp/__init__.py
index 7ec89507..87b566f4 100644
--- a/pyinterp/pyinterp/pyinterp/__init__.py
+++ b/pyinterp/pyinterp/pyinterp/__init__.py
@@ -7268,6 +7268,20 @@ def om_print_code(rte, _):
     args_seq = OM_get_list_seq(args)
     args_len = len(args_seq)
 
+    sep = rte_lookup_locals(rte, 'sep')
+    end = rte_lookup_locals(rte, 'end')
+
+    if not (om_isinstance(sep, class_str) or om_isinstance(sep, class_NoneType)):
+        ctx = make_out_of_ast_context(rte, om_None)
+        return sem_raise_with_message(ctx, class_TypeError, "sep must be None or a string")
+
+    if not (om_isinstance(end, class_str) or om_isinstance(end, class_NoneType)):
+        ctx = make_out_of_ast_context(rte, om_None)
+        return sem_raise_with_message(ctx, class_TypeError, "end must be None or a string")
+
+    sep = OM_get_boxed_value(sep)
+    end = OM_get_boxed_value(end)
+
     result = []
     for _ in args_seq:
         result.append(None)
@@ -7280,8 +7294,7 @@ def print_value(rte, str_result):
             if new_index < args_len:
                 return stmt_end(make_out_of_ast_context(rte, lambda rte: loop(rte, new_index)), 0)
             else:
-                # sep=' '
-                runtime_print(' '.join(result), rte)
+                runtime_print(sep.join(result) + end, rte)
                 return unwind_return(rte, om_None)
 
         next_ctx = make_out_of_ast_context(rte, print_value)
@@ -7290,7 +7303,7 @@ def print_value(rte, str_result):
     if args_len > 0:
         return loop(rte, 0)
     else:
-        runtime_print('', rte)
+        runtime_print('' + end, rte)
         return unwind_return(rte, om_None)
 
 def om_alert_code(rte, _):
@@ -8622,7 +8635,8 @@ def fresh_rte(options):
     rte = make_new_rte(globals_env, locals_env, builtins_env, builtins_module, options)
 
     # Vanilla Python builtins
-    om_builtin_print = om_make_builtin_function_with_signature('print', om_print_code, make_vararg_only_signature('args'))
+    om_builtin_print = om_make_builtin_function_with_signature('print', om_print_code,
+                                                               make_signature((), (), 'args', ('sep', 'end'), (om_str(" "), om_str("\n")), None, ()))
     om_builtin_breakpoint = om_make_builtin_function_with_signature('breakpoint', om_breakpoint_code, empty_signature)
     om_builtin_input = om_make_builtin_function_with_signature('input', om_input_code, make_posonly_defaults_signature(('obj',), (om_str(''),)))
     om_builtin_hex = om_make_builtin_function_with_signature('hex', om_hex_code, make_posonly_only_signature(('obj',)))