Python: Convert XML to CSV file











up vote
5
down vote

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I have an XML file like this:



<hierachy>
<att>
<Order>1</Order>
<attval>Data</attval>
<children>
<att>
<Order>1</Order>
<attval>Studyval</attval>
</att>
<att>
<Order>2</Order>
<attval>Site</attval>
</att>
</children>
</att>
<att>
<Order>2</Order>
<attval>Info</attval>
<children>
<att>
<Order>1</Order>
<attval>age</attval>
</att>
<att>
<Order>2</Order>
<attval>gender</attval>
</att>
</children>
</att>
</hierachy>


I'm trying to convert it to a CSV file like this:



Data,Studyval
Date,Site
Info,age
Info,gender


My problem is, both the parent and child names are the same- 'att' and 'attval'. How do I tell Python to distinguish between the both and give me the output?



I tried this:



import xml.etree.cElementTree as ET

tree = ET.parse('input.xml')
rebase = tree.getroot()

list =

for att in rebase.findall('att'):
name = att.find('attval').text
for each_att in att.findall('attval'):
try:
val = att.find('attval').text
print name, val
except AttributeError:
print name


and it printed the same things twice.










share|improve this question




























    up vote
    5
    down vote

    favorite
    4












    I have an XML file like this:



    <hierachy>
    <att>
    <Order>1</Order>
    <attval>Data</attval>
    <children>
    <att>
    <Order>1</Order>
    <attval>Studyval</attval>
    </att>
    <att>
    <Order>2</Order>
    <attval>Site</attval>
    </att>
    </children>
    </att>
    <att>
    <Order>2</Order>
    <attval>Info</attval>
    <children>
    <att>
    <Order>1</Order>
    <attval>age</attval>
    </att>
    <att>
    <Order>2</Order>
    <attval>gender</attval>
    </att>
    </children>
    </att>
    </hierachy>


    I'm trying to convert it to a CSV file like this:



    Data,Studyval
    Date,Site
    Info,age
    Info,gender


    My problem is, both the parent and child names are the same- 'att' and 'attval'. How do I tell Python to distinguish between the both and give me the output?



    I tried this:



    import xml.etree.cElementTree as ET

    tree = ET.parse('input.xml')
    rebase = tree.getroot()

    list =

    for att in rebase.findall('att'):
    name = att.find('attval').text
    for each_att in att.findall('attval'):
    try:
    val = att.find('attval').text
    print name, val
    except AttributeError:
    print name


    and it printed the same things twice.










    share|improve this question


























      up vote
      5
      down vote

      favorite
      4









      up vote
      5
      down vote

      favorite
      4






      4





      I have an XML file like this:



      <hierachy>
      <att>
      <Order>1</Order>
      <attval>Data</attval>
      <children>
      <att>
      <Order>1</Order>
      <attval>Studyval</attval>
      </att>
      <att>
      <Order>2</Order>
      <attval>Site</attval>
      </att>
      </children>
      </att>
      <att>
      <Order>2</Order>
      <attval>Info</attval>
      <children>
      <att>
      <Order>1</Order>
      <attval>age</attval>
      </att>
      <att>
      <Order>2</Order>
      <attval>gender</attval>
      </att>
      </children>
      </att>
      </hierachy>


      I'm trying to convert it to a CSV file like this:



      Data,Studyval
      Date,Site
      Info,age
      Info,gender


      My problem is, both the parent and child names are the same- 'att' and 'attval'. How do I tell Python to distinguish between the both and give me the output?



      I tried this:



      import xml.etree.cElementTree as ET

      tree = ET.parse('input.xml')
      rebase = tree.getroot()

      list =

      for att in rebase.findall('att'):
      name = att.find('attval').text
      for each_att in att.findall('attval'):
      try:
      val = att.find('attval').text
      print name, val
      except AttributeError:
      print name


      and it printed the same things twice.










      share|improve this question















      I have an XML file like this:



      <hierachy>
      <att>
      <Order>1</Order>
      <attval>Data</attval>
      <children>
      <att>
      <Order>1</Order>
      <attval>Studyval</attval>
      </att>
      <att>
      <Order>2</Order>
      <attval>Site</attval>
      </att>
      </children>
      </att>
      <att>
      <Order>2</Order>
      <attval>Info</attval>
      <children>
      <att>
      <Order>1</Order>
      <attval>age</attval>
      </att>
      <att>
      <Order>2</Order>
      <attval>gender</attval>
      </att>
      </children>
      </att>
      </hierachy>


      I'm trying to convert it to a CSV file like this:



      Data,Studyval
      Date,Site
      Info,age
      Info,gender


      My problem is, both the parent and child names are the same- 'att' and 'attval'. How do I tell Python to distinguish between the both and give me the output?



      I tried this:



      import xml.etree.cElementTree as ET

      tree = ET.parse('input.xml')
      rebase = tree.getroot()

      list =

      for att in rebase.findall('att'):
      name = att.find('attval').text
      for each_att in att.findall('attval'):
      try:
      val = att.find('attval').text
      print name, val
      except AttributeError:
      print name


      and it printed the same things twice.







      python xml csv xpath elementtree






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Aug 6 '15 at 0:24

























      asked Aug 5 '15 at 23:59









      pam

      2404620




      2404620
























          1 Answer
          1






          active

          oldest

          votes

















          up vote
          6
          down vote



          accepted










          Do not use the findall function, as it will look for att tags in the whole tree. Just iterate the tree in order from top to bottom and grab the relevant elements in them.



          from xml.etree import ElementTree
          tree = ElementTree.parse('input.xml')
          root = tree.getroot()

          for att in root:
          first = att.find('attval').text
          for subatt in att.find('children'):
          second = subatt.find('attval').text
          print('{},{}'.format(first, second))


          Which gives:



          $ python process.py 
          Data,Studyval
          Data,Site
          Info,age
          Info,gender





          share|improve this answer























          • That is perfect! Thanks a ton!
            – pam
            Aug 6 '15 at 0:40











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          1 Answer
          1






          active

          oldest

          votes








          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes








          up vote
          6
          down vote



          accepted










          Do not use the findall function, as it will look for att tags in the whole tree. Just iterate the tree in order from top to bottom and grab the relevant elements in them.



          from xml.etree import ElementTree
          tree = ElementTree.parse('input.xml')
          root = tree.getroot()

          for att in root:
          first = att.find('attval').text
          for subatt in att.find('children'):
          second = subatt.find('attval').text
          print('{},{}'.format(first, second))


          Which gives:



          $ python process.py 
          Data,Studyval
          Data,Site
          Info,age
          Info,gender





          share|improve this answer























          • That is perfect! Thanks a ton!
            – pam
            Aug 6 '15 at 0:40















          up vote
          6
          down vote



          accepted










          Do not use the findall function, as it will look for att tags in the whole tree. Just iterate the tree in order from top to bottom and grab the relevant elements in them.



          from xml.etree import ElementTree
          tree = ElementTree.parse('input.xml')
          root = tree.getroot()

          for att in root:
          first = att.find('attval').text
          for subatt in att.find('children'):
          second = subatt.find('attval').text
          print('{},{}'.format(first, second))


          Which gives:



          $ python process.py 
          Data,Studyval
          Data,Site
          Info,age
          Info,gender





          share|improve this answer























          • That is perfect! Thanks a ton!
            – pam
            Aug 6 '15 at 0:40













          up vote
          6
          down vote



          accepted







          up vote
          6
          down vote



          accepted






          Do not use the findall function, as it will look for att tags in the whole tree. Just iterate the tree in order from top to bottom and grab the relevant elements in them.



          from xml.etree import ElementTree
          tree = ElementTree.parse('input.xml')
          root = tree.getroot()

          for att in root:
          first = att.find('attval').text
          for subatt in att.find('children'):
          second = subatt.find('attval').text
          print('{},{}'.format(first, second))


          Which gives:



          $ python process.py 
          Data,Studyval
          Data,Site
          Info,age
          Info,gender





          share|improve this answer














          Do not use the findall function, as it will look for att tags in the whole tree. Just iterate the tree in order from top to bottom and grab the relevant elements in them.



          from xml.etree import ElementTree
          tree = ElementTree.parse('input.xml')
          root = tree.getroot()

          for att in root:
          first = att.find('attval').text
          for subatt in att.find('children'):
          second = subatt.find('attval').text
          print('{},{}'.format(first, second))


          Which gives:



          $ python process.py 
          Data,Studyval
          Data,Site
          Info,age
          Info,gender






          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited Aug 6 '15 at 0:30

























          answered Aug 6 '15 at 0:24









          Havok

          3,57912028




          3,57912028












          • That is perfect! Thanks a ton!
            – pam
            Aug 6 '15 at 0:40


















          • That is perfect! Thanks a ton!
            – pam
            Aug 6 '15 at 0:40
















          That is perfect! Thanks a ton!
          – pam
          Aug 6 '15 at 0:40




          That is perfect! Thanks a ton!
          – pam
          Aug 6 '15 at 0:40


















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