So, I'm parsing this xml file of moderate size (about 27K lines). Not far into it, I'm seeing unexpected behavior from ElementTree.Element where I get Element.text for one entry but not the next, yet it's there in the source XML as you can see:
<!-- language: lang-xml -->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:enumeration value="24">
<xs:annotation>
<xs:documentation>UPC12 (item-specific) on cover 2</xs:documentation>
<xs:documentation>AKA item/price; ‘cover 2’ is defined as the inside front cover of a book</xs:documentation>
</xs:annotation>
</xs:enumeration>
<xs:enumeration value="25">
<xs:annotation>
<xs:documentation>UPC12+5 (item-specific) on cover 2</xs:documentation>
<xs:documentation>AKA item/price; ‘cover 2’ is defined as the inside front cover of a book</xs:documentation>
</xs:annotation>
</xs:enumeration>
When I encounter an enumeration tag I call this function:
import xml.etree.cElementTree as ElementTree
...
def _parse_list_item(xmlns: str, list_id: int, itemElement: ElementTree.Element) -> ListItem:
if isinstance(itemElement, ElementTree.Element):
if itemElement.attrib['value'] is not None:
item_id = itemElement.attrib['value'] # string
if list_id == 6 and (item_id == '25' or item_id=='24'):
print(list_id, item_id) # <== debug break point here
desc = None
notes = ""
for child in itemElement:
if child.tag == (xmlns + 'annotation'):
for grandchild in child:
if grandchild.tag == (xmlns + 'documentation'):
if desc is None:
desc = grandchild.text
else:
if len(notes)>0:
notes += " " # add a space
notes += grandchild.text or ""
if item_id is not None and desc is not None:
return Codex.ListItem({'itemId': item_id, 'listId': list_id, 'description': desc, 'notes': notes})
If I place a breakpoint at the print statement, when I get to the enumeration node for "24" I can look at the text for the grandchild nodes and they are as shown in the XML, i.e. "UPC12..." or "AKA item...", but when I get to the enumeration node for "25", and look at the grandchild text, it's None.
When I remove the xs: namespace by pre-filtering the XML file, the grandchild text comes through fine.
Is it possible I'm over some size limit or is there some syntax problem?
Sorry for less-than-pythonic code but I wanted to be able to examine all the intermediate values in pycharm. It's python 3.6.
Thanks for any insights you may have!
