HTML report is not being generated (TypeError: must be str, not bytes)

[Daniel-Brosnan-Blazquez]

When generating the report as html the following error occurs:
Traceback (most recent call last):
File "test_ingestion_xmls.py", line 1564, in
sqltap.report(statistics, "report.html", report_format="html")
File "/usr/local/lib/python3.4/dist-packages/sqltap/sqltap.py", line 534, in report
result = reporter.report()
File "/usr/local/lib/python3.4/dist-packages/sqltap/sqltap.py", line 381, in report
f.write(content)
TypeError: must be str, not bytes

Casting content as str makes visible the error:
KeyError: 'ingestion_duration'
/usr/local/lib/python3.4/dist-packages/sqltap/templates/html.mako, line 145:

                % for idx, query in enumerate(reversed(group.queries)):
                <tr class="${'hidden' if idx >= 3 else ''}">
                    <td>${'%.3f' % query.duration}</td>
                    % for param_name in params:
                    <td>${query.params[param_name]}</td> ## Here it seems to be the issue
                    % endfor
                    <td>${'%d' % query.rowcount}</td>
                    <td>${'%d' % query.params_id}</td>
                </tr>
                % endfor

This parameter is never used so I don't really understand why it is trying to use it.

Workaround to fix the issue

                % for idx, query in enumerate(reversed(group.queries)):
                <tr class="${'hidden' if idx >= 3 else ''}">
                    <td>${'%.3f' % query.duration}</td>
                    % for param_name in params:
                    % if param_name in query.params:  ## Enters only if key exists
                    <td>${query.params[param_name]}</td>
                    % endif
                    % endfor
                    <td>${'%d' % query.rowcount}</td>
                    <td>${'%d' % query.params_id}</td>
                </tr>
                % endfor

So, now it is accessing the parameters if they are available.