Re: [PythonReports-users] PythonReport - deprecation warning on et.getchildren

[Werner F. B. <wer...@fr...>]

Hi Alex, (send again, but to list this time)

On 20/12/2012 18:41, alexander smishlajev wrote:
> Werner F. Bruhin wrote, at 20.12.2012 18:29:
>> Error saving template file This method will be removed in future
>> versions.  Use 'list(elem)' or iteration over elem instead.
> You mean, warning; this shouldn't be error.
It is a warning, but it damages the file I try to save, i.e. it has "0" 
bytes after, if I try to reopen it I get "Invalid template file".  Don't 
understand why, still searching.

This is the traceback I see in WingIDE:

Error saving template file This method will be removed in future 
versions.  Use 'list(elem)' or iteration over elem instead.
Traceback (most recent call last):
   File "c:\Python27\lib\site-packages\PythonReports\editor\toolbar.py", 
line 47, in OnSave
     self.app.pyr_editor_env.report_save()
   File 
"c:\Python27\lib\site-packages\PythonReports\editor\environment.py", 
line 192, in report_save
     self.report_save_file(self.filename)
   File 
"c:\Python27\lib\site-packages\PythonReports\editor\environment.py", 
line 181, in report_save_file
     templatesaver.save_template_file(_report, filename)
   File 
"c:\Python27\lib\site-packages\PythonReports\editor\templatesaver.py", 
line 67, in save_template_file
     _xml_template.write(file_name)
   File "c:\Python27\lib\site-packages\PythonReports\datatypes.py", line 
1315, in write
     self.root_validator.writexml(file, self._root, encoding)
   File "c:\Python27\lib\site-packages\PythonReports\datatypes.py", line 
1070, in writexml
     for _child in element.getchildren():
   File "c:\Python27\lib\xml\etree\ElementTree.py", line 350, in getchildren
     DeprecationWarning, stacklevel=2
DeprecationWarning: This method will be removed in future versions. Use 
'list(elem)' or iteration over elem instead.

I tried using catch_warnings, but I must do something wrong as it still 
hits the error.

         with warnings.catch_warnings():
             warnings.simplefilter("ignore")

             self.env = EditorEnvironment(EditorForm(None))


> Sorry, no.  The iterator interface is not documented prior to 2.7, and I
> also do not see it in the xml/etree/ElementTree.py source.  And I don't
> grok how the list() trick could possibly work.
I was going to suggest "if sys.version_info > 2.7:" but if the list 
trick won't work then that is not an option.

Do you see what I am doing wrong with the catch_warnings?
>
> There is getiterator() method, but it returns something completely
> different...
>
> So, unless there is solution acceptable for 2.4 the easiest way would be
> to ignore this warning (maybe add a filtering code to start-up script).
>
> I don't expect the deprecated method disappear until the end of Python2
> life time, and for Python3 there is no wx.
There are wxPython Phoenix builds:) for Python 3.x, but yes they are not 
yet ready for real usage.

See you
Werner