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Groups > comp.lang.python > #78943 > unrolled thread
| Started by | David Jobes <david.jobes.sony@gmail.com> |
|---|---|
| First post | 2014-10-10 04:46 -0700 |
| Last post | 2014-10-12 01:37 -0700 |
| Articles | 4 — 3 participants |
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Parse bad xml file David Jobes <david.jobes.sony@gmail.com> - 2014-10-10 04:46 -0700
Re: Parse bad xml file Peter Otten <__peter__@web.de> - 2014-10-10 14:20 +0200
Re: Parse bad xml file David Jobes <david.jobes.sony@gmail.com> - 2014-10-10 05:33 -0700
Re: Parse bad xml file Rustom Mody <rustompmody@gmail.com> - 2014-10-12 01:37 -0700
| From | David Jobes <david.jobes.sony@gmail.com> |
|---|---|
| Date | 2014-10-10 04:46 -0700 |
| Subject | Parse bad xml file |
| Message-ID | <9bb1f027-dc72-43c1-9301-e2105225f75a@googlegroups.com> |
I was given a badly or poor formatted xml file that i need to convert to csv file: <?xml version="1.0"?> <resultset xmlns:dyn="http://exslt.org/dynamic"> <table name="SIGNATURE"> <column name="ID" type="String"> </column> <column name="NUM" type="Integer"> </column> <column name="SEVERITY_ID" type="Integer"> </column> <column name="NAME" type="String"> </column> <column name="CLASS" type="String"> </column> <column name="PRODUCT_CATEGORY_ID" type="Integer"> </column> <column name="PROTOCOL" type="String"> </column> <column name="TAXONOMY" type="String"> </column> <column name="CVE_ID" type="String"> </column> <column name="BUGTRAQ_ID" type="String"> </column> <column name="DESCRIPTION" type="String"> </column> <column name="MESSAGE" type="String"> </column> <column name="FILTERTYPE" type="String"> </column> <data> <r> <c>00000001-0001-0001-0001-000000000027</c> <c>27</c> <c>2</c> <c>0027: IP Options: Record Route (RR)</c> <c>Network_equip</c> <c>10</c> <c>ip</c> <c>100741885</c> <c>2001-0752,1999-1339,1999-0986</c> <c>870</c> <c></c> <c></c> <c></c> </r> I have been able to load and read the file line by line, but once i get to the r line and try to process each c(column) that is where it blows up. I need to be able to split the lines and place each one or the r (row) on a single line for the csv. i have a list set for each one of the headers based on the col name field, i just have been able to format properly.
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| From | Peter Otten <__peter__@web.de> |
|---|---|
| Date | 2014-10-10 14:20 +0200 |
| Message-ID | <mailman.14752.1412943619.18130.python-list@python.org> |
| In reply to | #78943 |
David Jobes wrote:
> I was given a badly or poor formatted xml file that i need to convert to
> csv file:
There are no "badly formatted" XML files, only valid and invalid ones.
Fortunately following looks like the beginning of a valid one.
> <?xml version="1.0"?>
> <resultset xmlns:dyn="http://exslt.org/dynamic">
> <table name="SIGNATURE">
> <column name="ID" type="String"> </column>
> <column name="NUM" type="Integer"> </column>
> <column name="SEVERITY_ID" type="Integer"> </column>
> <column name="NAME" type="String"> </column>
> <column name="CLASS" type="String"> </column>
> <column name="PRODUCT_CATEGORY_ID" type="Integer"> </column>
> <column name="PROTOCOL" type="String"> </column>
> <column name="TAXONOMY" type="String"> </column>
> <column name="CVE_ID" type="String"> </column>
> <column name="BUGTRAQ_ID" type="String"> </column>
> <column name="DESCRIPTION" type="String"> </column>
> <column name="MESSAGE" type="String"> </column>
> <column name="FILTERTYPE" type="String"> </column>
> <data>
> <r>
> <c>00000001-0001-0001-0001-000000000027</c>
> <c>27</c>
> <c>2</c>
> <c>0027: IP Options: Record Route (RR)</c>
> <c>Network_equip</c>
> <c>10</c>
> <c>ip</c>
> <c>100741885</c>
> <c>2001-0752,1999-1339,1999-0986</c>
> <c>870</c>
> <c></c>
> <c></c>
> <c></c>
> </r>
>
>
> I have been able to load and read the file line by line,
XML doesn't have an idea of lines, so don't do that. Instead let a parser
make sense of the document structure.
> but once i get to
> the r line and try to process each c(column) that is where it blows up. I
> need to be able to split the lines and place each one or the r (row) on a
> single line for the csv.
>
> i have a list set for each one of the headers based on the col name field,
> i just have been able to format properly.
Here's a simple script using ElementTree, to introduce you to basic xml
handling with Python's stdlib. If you are lucky it might even work ;)
import csv
import sys
from xml.etree import ElementTree
SOURCEFILE = "xml_to_csv.xml"
tree = ElementTree.parse(SOURCEFILE)
table = tree.find("table")
column_names = [c.attrib["name"] for c in table.findall("column")]
writer = csv.writer(sys.stdout)
writer.writerow(column_names)
for row in table.find("data").findall("r"):
writer.writerow([field.text for field in row.findall("c")])
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| From | David Jobes <david.jobes.sony@gmail.com> |
|---|---|
| Date | 2014-10-10 05:33 -0700 |
| Message-ID | <e360dd2a-8cfe-4b49-ada2-55806acf68ae@googlegroups.com> |
| In reply to | #78949 |
On Friday, October 10, 2014 8:21:17 AM UTC-4, Peter Otten wrote:
> David Jobes wrote:
>
>
>
> > I was given a badly or poor formatted xml file that i need to convert to
>
> > csv file:
>
>
>
> There are no "badly formatted" XML files, only valid and invalid ones.
>
> Fortunately following looks like the beginning of a valid one.
>
>
>
> > <?xml version="1.0"?>
>
> > <resultset xmlns:dyn="http://exslt.org/dynamic">
>
> > <table name="SIGNATURE">
>
> > <column name="ID" type="String"> </column>
>
> > <column name="NUM" type="Integer"> </column>
>
> > <column name="SEVERITY_ID" type="Integer"> </column>
>
> > <column name="NAME" type="String"> </column>
>
> > <column name="CLASS" type="String"> </column>
>
> > <column name="PRODUCT_CATEGORY_ID" type="Integer"> </column>
>
> > <column name="PROTOCOL" type="String"> </column>
>
> > <column name="TAXONOMY" type="String"> </column>
>
> > <column name="CVE_ID" type="String"> </column>
>
> > <column name="BUGTRAQ_ID" type="String"> </column>
>
> > <column name="DESCRIPTION" type="String"> </column>
>
> > <column name="MESSAGE" type="String"> </column>
>
> > <column name="FILTERTYPE" type="String"> </column>
>
> > <data>
>
> > <r>
>
> > <c>00000001-0001-0001-0001-000000000027</c>
>
> > <c>27</c>
>
> > <c>2</c>
>
> > <c>0027: IP Options: Record Route (RR)</c>
>
> > <c>Network_equip</c>
>
> > <c>10</c>
>
> > <c>ip</c>
>
> > <c>100741885</c>
>
> > <c>2001-0752,1999-1339,1999-0986</c>
>
> > <c>870</c>
>
> > <c></c>
>
> > <c></c>
>
> > <c></c>
>
> > </r>
>
> >
>
> >
>
> > I have been able to load and read the file line by line,
>
>
>
> XML doesn't have an idea of lines, so don't do that. Instead let a parser
>
> make sense of the document structure.
>
>
>
> > but once i get to
>
> > the r line and try to process each c(column) that is where it blows up. I
>
> > need to be able to split the lines and place each one or the r (row) on a
>
> > single line for the csv.
>
> >
>
> > i have a list set for each one of the headers based on the col name field,
>
> > i just have been able to format properly.
>
>
>
> Here's a simple script using ElementTree, to introduce you to basic xml
>
> handling with Python's stdlib. If you are lucky it might even work ;)
>
>
>
> import csv
>
> import sys
>
> from xml.etree import ElementTree
>
>
>
> SOURCEFILE = "xml_to_csv.xml"
>
>
>
> tree = ElementTree.parse(SOURCEFILE)
>
> table = tree.find("table")
>
> column_names = [c.attrib["name"] for c in table.findall("column")]
>
> writer = csv.writer(sys.stdout)
>
> writer.writerow(column_names)
>
> for row in table.find("data").findall("r"):
>
> writer.writerow([field.text for field in row.findall("c")])
That did it, thank you, and in a lot fewer lines of code than i had, i was trying to use strings and regex. i will read up more on the xml.etree stuff.
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| From | Rustom Mody <rustompmody@gmail.com> |
|---|---|
| Date | 2014-10-12 01:37 -0700 |
| Message-ID | <5ec9e1d2-2951-43cd-9ec2-b8a0777be51c@googlegroups.com> |
| In reply to | #78950 |
On Friday, October 10, 2014 6:03:58 PM UTC+5:30, David Jobes wrote: > On Friday, October 10, 2014 8:21:17 AM UTC-4, Peter Otten wrote: <Elementtree XMl snipped> > That did it, thank you, and in a lot fewer lines of code than i had, i was trying to use strings and regex. i will read up more on the xml.etree stuff. Those who parse xml/html with re's should read this -- http://stackoverflow.com/questions/1732348/regex-match-open-tags-except-xhtml-self-contained-tags/1732454#1732454
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