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Questions tagged [iterparse]

iterparse is used by XML parsers for tracking changes to the tree while it is being built

This tag is used in an XML parsing code. Usually iterparse builds a tree when parsing the XML. Also you can safely rearrange or remove parts of the tree while parsing.

See also:

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How to write ElementTree generated by iterparse into an xml file

Please, Note: Novice user of Python. Hi, I am working with more than 1Gb of XML file. Using Python2.7. Initially, I was using 'iter' to parse the XML. It worked fine with small files but with file such big I was getting a memory error. Then, I read…
rapport89
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Converting GraphML file to another

Hi I have a simple graphML file and I would like to remove the node tag from the GraphML and save it in another GraphML file. The GraphML size is 3GB below given is the sample. Input File :
arjun045
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Modify large xml file using lxml

Language :- Python 2.7.6 File Size :- 1.5 GB XML Format 876543 ABC .... 876567 DEF .... …
Yogesh Yadav
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how to skip malformed packet when using lxml's iterparse?

I have some very huge xml files (>50G) converted from wireshark. When using iterparse to extract information from these files, I found there are some malformed packets that cause the iterparse report error which says: for event, elem in context: …
cskathy
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Why is elementtree.ElementTree.iterparse using so much memory?

I am using elementtree.ElementTree.iterparse to parse a large (371 MB) xml file. My code is basically this: outf = open('out.txt', 'w') context = iterparse('copyright.xml') context = iter(context) dummy, root = context.next() for event, elem in…
russell
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Extracting pmids from large xml file using iterparse

I have a large xml file downloaded from pubmed central, I'm trying to extract all the PMID (around 3 million). I want to extract the elem.text (i.e., 34405992) for the corresponding element tag and attribute shown below, can someone advice on how to…
Mathew
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What are "events" in the context of parsing XML files? Having trouble understanding the ElementTree docs

I am trying to understand the iterparse section in particular. What are the "events" referred to here? Do the start and end events correspond to start and end tags in the elements of an XML file, and if so, what does it do? Here is the…
ktz_he
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Efficiently Iterating Through Specific Tags in Parsing XML Using xml.etree

I am in the process of parsing a very large XML file that is about 9 GB in size. I have tried the .iterparse method, which is, from what I have gathered, the recommended way to go about this task. However, this seems to take too long. Now, I am…
Minura Punchihewa
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Processing large xml files. Only root tree children attributes are relevant

I'm new to xml and python and I hope that I phrased my problem right: I have xml files with a size of one gigabyte. The files look like this: Stuff I…
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How to apply xmlTree iterparse to nested XML set

I am trying to replicate the example from this tutorial, but using iterparse with elem.clear(). XML example:
Bex
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Why does ElementTree.iterparse sometimes retrieve XML elements incompletely?

I'm parsing an XML file which is too big to load into memory completely, so I am using an xml.etree.ElementTree.iterparse to parse it. The problem I'm having is that sometimes, when I retrieve an element from the iterator, I find that some…
Severo Raz
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Bypass file as parameter with a string for lxml iterparse function using Python 2.7

I am interating over an xml tree using the lxml.tree function iterparse(). This works ok with an input file xml_source = "formatted_html_diff.xml" context = ET.iterparse(xml_source, events=("start",)) event, root = context.next() However, I would…
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lxml.etree iterparse does not accept a HDFS file path

I would like to process a huge xml file that is distributed across a HDFS file system, using the iterparse function from lxml.etree package. I have tried it locally and on an Amazon's EMR cluster: Locally : the address of my xml file is…
MMasmoudi
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Parsing Xml files >3gb using lxml etree iterparse

I am not able to parse XML file of huge size using lxml tree. What I came to know from my research is that lxml iterparse loads the xml file until it gets tag which it is looking for. This is snippet of my code :- for event, child in…
Prit Modi
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how to find and edit tags in XML files with namespaces using ElementTree

I would like to find specific tags in my XML document and edit their text or attributes. My XML file contains namespaces (and as I understand it correctly, nested namespaces). The tool I'd like to use for this purpose is ElementTree. I managed to…
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