Modernize Convert characters1

tools/filters/convert_characters.xml

@@ -1,14 +1,17 @@
-<tool id="Convert characters1" name="Convert" version="1.0.0">
+<tool id="Convert characters1" name="Convert" version="1.0.1" profile="24.2">
   <description>delimiters to TAB</description>
-  <command interpreter="python">
-convert_characters.py
-#if $strip
-  --strip
-#end if
-#if $condense
-  --condense
-#end if
-$input $convert_from $out_file1
+  <requirements>
+    <requirement type="package" version="3.13">python</requirement>
+  </requirements>
+  <command>
+    python '$__tool_directory__/convert_characters.py'
+      #if $strip
+        --strip
+      #end if
+      #if $condense
+        --condense
+      #end if
+      '$input' '$convert_from' '$out_file1'
   </command>
   <inputs>
     <param name="convert_from" type="select" label="Convert all">
@@ -27,12 +30,12 @@ $input $convert_from $out_file1
     <param name="strip" type="boolean" checked="true" label="Strip leading and trailing whitespaces" />
     <param name="condense" type="boolean" checked="true" label="Condense consecutive delimiters in one TAB" />
   </inputs>
-  <outputs>
-    <data format="tabular" name="out_file1" />
-  </outputs>
   <stdio>
     <exit_code range="1:" level="fatal" />
   </stdio>
+  <outputs>
+    <data format="tabular" name="out_file1" />
+  </outputs>
   <tests>
     <test>
       <param name="convert_from" value="s"/>