[docs] (correction)Bug in ETree

Senthil Kumaran senthil at uthcode.com
Wed Jun 17 15:10:03 CEST 2015

Hello Noonan,

In general, I agree that docs could see improvement in listing examples.  

Specifically what was the bug in ET object’s .findall or .find ?

Here I use the example listed in the docs and works fine for me.

$ ./python.exe
Python 3.4.3+ (3.4:3ded282f9615, Jun 17 2015, 06:05:20)
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import xml.etree.ElementTree as ET
>>> tree = ET.parse('country_data.xml')
>>> root = tree.getroot()
>>> root.findall(".")
[<Element 'data' at 0x10ea87b88>]
>>> root.findall("./country/neighbor")
[<Element 'neighbor' at 0x10eb63868>, <Element 'neighbor' at 0x10eb638b8>, <Element 'neighbor' at 0x10eb63a48>, <Element 'neighbor' at 0x10eb63bd8>, <Element 'neighbor' at 0x10eb63c28>]
>>> root.findall(".//year/..[@name='Singapore']")
[<Element 'country' at 0x10eb63908>]
>>> root.findall(".//*[@name='Singapore']/year")
[<Element 'year' at 0x10eb639a8>]
>>> root.findall(".//neighbor[2]")
[<Element 'neighbor' at 0x10eb638b8>, <Element 'neighbor' at 0x10eb63c28>]


Senthil Kumaran

On Tuesday, June 16, 2015 at 5:55 PM, Noonan wrote:

> Sorry my last email sent prematurely, I'm not sure how. I was using a hotkey for pasing when it accidently sent.
> I'm running Python version:
> 3.4.2 (v3.4.2:ab2c023a9432, Oct  6 2014, 22:16:31) [MSC v.1600 64 bit (AMD64)]
> When I do a .findall or .find on an Element object of an ElementTree from xml.etree, xpath queries (of the format './/<tagname>') aren't letting me retrieve children that aren't direct descendants of the Element object. Also, the documentation doesn't clearly show/when how to use XPath queries, it just mentions that you can use them instead. A lot of python documentation is like this and it leads to a lot of tinkering and then frustration when it doesn't work. Stack overflow said the same solution, but really, I think it's sad when your documentation needs stack overflow for clarification. Documentation is by no means fast, but the depth should be better than a quick search on Google/Bing.  
> This page is the one I used to read up on it. But I actually found better depth/examples in StackOverflow or the site of the guy that I think wrote Etree before you guys integrated it into Python.  
> https://docs.python.org/3/library/xml.etree.elementtree.html?highlight=xml
> Thanks!
> -Eric
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