diff --git a/converter.py b/converter.py
index 0ab10de..825dc11 100644
--- a/converter.py
+++ b/converter.py
@@ -2,7 +2,9 @@ from argparse import ArgumentParser
 from csv import reader as csv_reader
 from pprint import pformat
 from xml.dom.minidom import parseString as xml_parser
-from xml.etree import ElementTree
+from xml.etree.ElementTree import Element as XMLElement
+from xml.etree.ElementTree import SubElement as XMLSubElement
+from xml.etree.ElementTree import tostring as element_stringifier
 
 
 class System:
@@ -49,28 +51,28 @@ class System:
     def __repr__(self):
         return pformat(self.__dict__, compact=True, width=120, sort_dicts=False)
 
-    def to_xml(self) -> ElementTree.Element:
+    def to_xml(self) -> XMLElement:
         """Convert the current system into an XML element"""
-        system = ElementTree.Element("lsystem")
+        system = XMLElement("lsystem")
 
-        base = ElementTree.SubElement(system, "name")
+        base = XMLSubElement(system, "name")
         base.text = self.name
 
-        base = ElementTree.SubElement(system, "base")
+        base = XMLSubElement(system, "base")
         base.text = "".join(self.base)
 
-        axiom = ElementTree.SubElement(system, "axiom")
+        axiom = XMLSubElement(system, "axiom")
         axiom.text = self.axiom
 
-        substitutions = ElementTree.SubElement(system, "substitutions")
+        substitutions = XMLSubElement(system, "substitutions")
         for member, substitution in self.substitutions:
-            sub_element = ElementTree.SubElement(substitutions, "substitution")
+            sub_element = XMLSubElement(substitutions, "substitution")
             sub_element.set("member", member)
             sub_element.text = substitution
 
-        interpretations = ElementTree.SubElement(system, "interpretations")
+        interpretations = XMLSubElement(system, "interpretations")
         for member, interpretation in self.interpretations:
-            inter_element = ElementTree.SubElement(interpretations, "interpretation")
+            inter_element = XMLSubElement(interpretations, "interpretation")
             inter_element.set("member", member)
             inter_element.text = interpretation
 
@@ -96,10 +98,10 @@ def data_reader(path: str, delimiter: str = ","):
     return res
 
 
-def lsystems_xml(systems: list[System]) -> ElementTree.Element:
+def lsystems_xml(systems: list[System]) -> XMLElement:
     """Convert list of L-system structure into XML"""
 
-    root = ElementTree.Element("lsystems")
+    root = XMLElement("lsystems")
 
     for system in systems:
         root.append(system.to_xml())
@@ -125,7 +127,7 @@ if __name__ == "__main__":
     xml = lsystems_xml(lsystems)
 
     # Output XML
-    dom = xml_parser(ElementTree.tostring(xml))
+    dom = xml_parser(element_stringifier(xml))
     pretty_xml = dom.toprettyxml(encoding="UTF-8").decode()
     if args.output:
         with open(args.output, "w") as output_file: