Hi Juan,
Yes this error message sounds like you've got the wrong python version. Please check it as suggested by Raghavendra. In addition, I've included below commands.xml data containing the commands/filters you requested. This xml functions properly on my system. You'll need to replace 'EMPTY' with your bash script.
Thanks,
Brett
1 2<?xml version='1.0' encoding='UTF-8' ?>
3<!DOCTYPE cli_grammar SYSTEM "cli_grammar.dtd">
4 5<cli_grammar>
6<mode>
7<pattern type="id">exec</pattern>
8<cmd>
9 <pattern type="id">tsm</pattern>
10 <help>the tsm application</help>
11 <param>
12 <pattern type="id">nodename</pattern>
13 <help>the nodename</help>
14 </param>
15 <param>
16 <pattern type="regex">[0-9A-Za-z]*</pattern>
17 <pattern type="help">NAME</pattern>
18 <help>the name of the node</help>
19 </param>
20 <action>
21 <class>EMPTY</class>
22 </action>
23</cmd>
2425<cmd>
26 <pattern type="id">risc</pattern>
27 <help>the risc</help>
28 <param>
29 <pattern type="id">ip</pattern>
30 <help>internet protocol</help>
31 </param>
32 <param>
33 <pattern type="id">address</pattern>
34 <help>the ip address</help>
35 </param>
36 <param>
37 <pattern type="regex">[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}</pattern>
38 <pattern type="help">IP</pattern>
39 <help>the IPv4 Address format</help>
40 </param>
41 <action>
42 <class>EMPTY</class>
43 </action>
44</cmd>
45</mode>
46</cli_grammar>
