Parsing XML in python for numbers - python-2.7

Question

I am new to python as well as XMl. I am trying to parse an XML file, find the values and the sum of those values. I have included the code as well as the data below.
import xml.etree.ElementTree as ET
data='''
<place>
<note>Test data</note>
<hospitals>
<doctor>
<name>John</name>
<count>97</count>
</doctor>
<doctor>
<name>Sam</name>
<count>97</count>
</doctor>
<doctor>
<name>Luke</name>
<count>90</count>
</doctor>
<doctor>
<name>Mark</name>
<count>90</count>
</doctor>
</hospitals>
</place> '''
tree=ET.fromstring (data)
for lines in tree.findall('place/hospitals/doctor'):
print lines.get('count'), lines.text
When I execute the above code, I am not getting any output.
Then I changed the code to :
tree=ET.fromstring (data)
print 'count:',tree.find('count').text
and the output is:
Traceback (most recent call last):
File "test2.py", line 26, in <module>
print 'count:',tree.find('count').text
AttributeError: 'NoneType' object has no attribute 'text'
Any help is appreciated guys.
Thank you

Answer 1

Element.findall() finds only elements with a tag which are direct children of the current element. The documentation for ElementTree is here.
So are the code examples.
For now, try this:
for line in tree.findall('./hospitals/doctor/count'):
print line.text
The above code just prints the counts. You will have to write the code to sum them up.