AttributeError: 'Element' object has no attribute 'findAll'

Question

I am trying to parse an XML with namespace, The XML looks like

<DATA xmlns="http://example.com/nspace/DATA/1.0"  xmlns:UP="http://example.com/nspace/UP/1.1" col_time_us="14245034321452862">
<UP:IN>...</UP:IN>
<UP:ROW>
     <sampleField>...</sampleField>                
</UP:ROW>
<UP:ROW>
     <sampleField>...</sampleField>                
</UP:ROW>
.
. 
.
</DATA>

When I use the following code to parse the XML

tree=ET.parse(fileToParse);
root=tree.getRoot();
namespaces = {'UP':'http://example.com/nspace/DATA/1.0'}
for data in root.findAll('UP:ROW',namespaces):
        hour+=1

I get the following error:

AttributeError: 'Element' object has no attribute 'findAll'

When I try to iterate through the children of root and print the tags, I get {http://example.com/nspace/DATA/1.0}ROW as the tags instead of just ROWS.

I want to find the ROW elements and extract the value for the sampleField tags. Could anybody please guide me as to what I could be doing wrong?

Answer 1

ElementTree Element objects indeed have no findAll() method. The correct method to use is Element.findall(), all lowercase.

You are also using the wrong namespace URI for the UP namespace. The root element defines two namespaces, and you need to pick the second one:

<DATA xmlns="http://example.com/nspace/DATA/1.0"  
      xmlns:UP="http://example.com/nspace/UP/1.1" ...>

Note the xmlns:UP, so use that URI:

>>> namespaces = {'UP': 'http://example.com/nspace/UP/1.1'}
>>> root.findall('UP:ROW', namespaces)
[<Element {http://example.com/nspace/UP/1.1}ROW at 0x102eea248>, <Element {http://example.com/nspace/UP/1.1}ROW at 0x102eead88>]