Fix module in terms of python style

api/test/s0_base.py

@@ -0,0 +1,44 @@
+from api.project import *
+from api.s0_base import *
+
+p = "test_s0_base"
+n_1 = "n_1"
+l_1 = "l_1"
+c_1 = "c_1"
+p_1 = "p_1"
+
+if is_project_open(p):
+    close_project(p)
+
+if have_project(p):
+    delete_project(p)
+
+create_project(p)
+open_project(p)
+
+add_node(p, n_1, JUNCTION)
+print(get_node(p, n_1))
+if have_node(p, n_1):
+    delete_node(p, n_1)
+print(have_node(p, n_1))
+
+add_link(p, l_1, PIPE)
+print(get_link(p, l_1))
+if have_link(p, l_1):
+    delete_link(p, l_1)
+print(have_link(p, l_1))
+
+add_curve(p, c_1)
+print(get_curve(p, c_1))
+if have_curve(p, c_1):
+    delete_curve(p, c_1)
+print(have_curve(p, c_1))
+
+add_pattern(p, p_1)
+print(get_pattern(p, p_1))
+if have_pattern(p, p_1):
+    delete_pattern(p, p_1)
+print(have_pattern(p, p_1))
+
+close_project(p)
+delete_project(p)