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Asked: 2026-05-27T19:41:03+00:00

My code is nearly finished but I’m having trouble with splitting up the SubElements

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My code is nearly finished but I’m having trouble with splitting up the SubElements in my for loop (?) How can I get each element into its own within the xml root node?

import csv
import sys

from xml.etree import ElementTree
from xml.etree.ElementTree import Element, SubElement, Comment, tostring

from xml.dom import minidom

def prettify(elem):
    """Return a pretty-printed XML string for the Element.
    """
    rough_string = ElementTree.tostring(elem, 'utf-8')
    reparsed = minidom.parseString(rough_string)
    return reparsed.toprettyxml(indent="  ")

xml = '<?xml version="1.0" encoding="utf-8"?>'
doctype = '<!DOCTYPE smil PUBLIC "-//W3C//DTD SMIL 2.0//EN" "http://www.w3.org/2001/SMIL20/SMIL20.dtd">'
root = Element('smil')
root.set('xmlns', 'http://www.w3.org/2001/SMIL20/Language')              
head = SubElement(root, 'head')
meta = SubElement(head, 'meta base="rtmp://cp23636.edgefcs.net/ondemand"')
body = SubElement(root, 'body')

video_data = ((256, 336000),
              (512, 592000),
              (768, 848000),
              (1128, 1208000))

with open(sys.argv[1], 'rU') as f:
    reader = csv.DictReader(f)
    for row in reader:
        switch_tag = ElementTree.SubElement(body, 'switch')

        for suffix, bitrate in video_data:
            attrs = {'src': ("mp4:soundcheck/{year}/{id}/{file_root_name}_{suffix}.mp4"
                             .format(suffix=str(suffix), **row)),
                     'system-bitrate': str(bitrate),
                     }
            ElementTree.SubElement(switch_tag, 'video', attrs)

print xml + doctype + prettify(root)

returns:

<?xml version="1.0" encoding="utf-8"?><!DOCTYPE smil PUBLIC "-//W3C//DTD SMIL 2.0//EN" "http://www.w3.org/2001/SMIL20/SMIL20.dtd"><?xml version="1.0" ?>
<smil xmlns="http://www.w3.org/2001/SMIL20/Language">
  <head>
    <meta base="rtmp://cp23636.edgefcs.net/ondemand"/>
  </head>
  <body>
    <switch>
      <video src="mp4:soundcheck/1/clay_aiken/02_sc_ca_sorry_256.mp4" system-bitrate="336000"/>
      <video src="mp4:soundcheck/1/clay_aiken/02_sc_ca_sorry_512.mp4" system-bitrate="592000"/>
      <video src="mp4:soundcheck/1/clay_aiken/02_sc_ca_sorry_768.mp4" system-bitrate="848000"/>
      <video src="mp4:soundcheck/1/clay_aiken/02_sc_ca_sorry_1128.mp4" system-bitrate="1208000"/>
    </switch>
    <switch>
      <video src="mp4:soundcheck/1/clay_aiken/03_sc_ca_everything_256.mp4" system-bitrate="336000"/>
      <video src="mp4:soundcheck/1/clay_aiken/03_sc_ca_everything_512.mp4" system-bitrate="592000"/>
      <video src="mp4:soundcheck/1/clay_aiken/03_sc_ca_everything_768.mp4" system-bitrate="848000"/>
      <video src="mp4:soundcheck/1/clay_aiken/03_sc_ca_everything_1128.mp4" system-bitrate="1208000"/>
    </switch>
    <switch>
      <video src="mp4:soundcheck/1/clay_aiken/04_sc_ca_thousandda_256.mp4" system-bitrate="336000"/>
      <video src="mp4:soundcheck/1/clay_aiken/04_sc_ca_thousandda_512.mp4" system-bitrate="592000"/>
      <video src="mp4:soundcheck/1/clay_aiken/04_sc_ca_thousandda_768.mp4" system-bitrate="848000"/>
      <video src="mp4:soundcheck/1/clay_aiken/04_sc_ca_thousandda_1128.mp4" system-bitrate="1208000"/>
    </switch>
    <switch>
      <video src="mp4:soundcheck/1/clay_aiken/05_sc_ca_hereyoucom_256.mp4" system-bitrate="336000"/>
      <video src="mp4:soundcheck/1/clay_aiken/05_sc_ca_hereyoucom_512.mp4" system-bitrate="592000"/>
      <video src="mp4:soundcheck/1/clay_aiken/05_sc_ca_hereyoucom_768.mp4" system-bitrate="848000"/>
      <video src="mp4:soundcheck/1/clay_aiken/05_sc_ca_hereyoucom_1128.mp4" system-bitrate="1208000"/>
    </switch>
    <switch>
      <video src="mp4:soundcheck/1/clay_aiken/06_sc_ca_intv_256.mp4" system-bitrate="336000"/>
      <video src="mp4:soundcheck/1/clay_aiken/06_sc_ca_intv_512.mp4" system-bitrate="592000"/>
      <video src="mp4:soundcheck/1/clay_aiken/06_sc_ca_intv_768.mp4" system-bitrate="848000"/>
      <video src="mp4:soundcheck/1/clay_aiken/06_sc_ca_intv_1128.mp4" system-bitrate="1208000"/>
    </switch>
  </body>
</smil>

But what I want is for each element to be on its own. Like this:

<?xml version="1.0" encoding="utf-8"?><!DOCTYPE smil PUBLIC "-//W3C//DTD SMIL 2.0//EN" "http://www.w3.org/2001/SMIL20/SMIL20.dtd"><?xml version="1.0" ?>
<smil xmlns="http://www.w3.org/2001/SMIL20/Language">
  <head>
    <meta base="rtmp://cp23636.edgefcs.net/ondemand"/>
  </head>
  <body>
    <switch>
      <video src="mp4:soundcheck/1/clay_aiken/02_sc_ca_sorry_256.mp4" system-bitrate="336000"/>
      <video src="mp4:soundcheck/1/clay_aiken/02_sc_ca_sorry_512.mp4" system-bitrate="592000"/>
      <video src="mp4:soundcheck/1/clay_aiken/02_sc_ca_sorry_768.mp4" system-bitrate="848000"/>
      <video src="mp4:soundcheck/1/clay_aiken/02_sc_ca_sorry_1128.mp4" system-bitrate="1208000"/>
    </switch>
   </body>
</smil>

and

<?xml version="1.0" encoding="utf-8"?><!DOCTYPE smil PUBLIC "-//W3C//DTD SMIL 2.0//EN" "http://www.w3.org/2001/SMIL20/SMIL20.dtd"><?xml version="1.0" ?>
<smil xmlns="http://www.w3.org/2001/SMIL20/Language">
  <head>
    <meta base="rtmp://cp23636.edgefcs.net/ondemand"/>
  </head>
  <body>
    <switch>
      <video src="mp4:soundcheck/1/clay_aiken/03_sc_ca_everything_256.mp4" system-bitrate="336000"/>
      <video src="mp4:soundcheck/1/clay_aiken/03_sc_ca_everything_512.mp4" system-bitrate="592000"/>
      <video src="mp4:soundcheck/1/clay_aiken/03_sc_ca_everything_768.mp4" system-bitrate="848000"/>
      <video src="mp4:soundcheck/1/clay_aiken/03_sc_ca_everything_1128.mp4" system-bitrate="1208000"/>
    </switch>
  </body>
</smil>
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1 Answer

  1. Editorial Team

    Like this?

    import csv
import sys

from xml.etree import ElementTree
from xml.etree.ElementTree import Element, SubElement, Comment, tostring

from xml.dom import minidom

def prettify(doctype, elem):
    """Return a pretty-printed XML string for the Element.
    """
    rough_string = doctype + ElementTree.tostring(elem, 'utf-8')
    reparsed = minidom.parseString(rough_string)
    return reparsed.toprettyxml(indent="  ", encoding = 'utf-8')

doctype = '<!DOCTYPE smil PUBLIC "-//W3C//DTD SMIL 2.0//EN" "http://www.w3.org/2001/SMIL20/SMIL20.dtd">'

video_data = ((256, 336000),
              (512, 592000),
              (768, 848000),
              (1128, 1208000))

with open(sys.argv[1], 'rU') as f:
    reader = csv.DictReader(f)
    for row in reader:
        root = Element('smil')
        root.set('xmlns', 'http://www.w3.org/2001/SMIL20/Language')
        head = SubElement(root, 'head')
        meta = SubElement(head, 'meta base="rtmp://cp23636.edgefcs.net/ondemand"')
        body = SubElement(root, 'body')

        switch_tag = ElementTree.SubElement(body, 'switch')

        for suffix, bitrate in video_data:
            attrs = {'src': ("mp4:soundcheck/{year}/{id}/{file_root_name}_{suffix}.mp4"
                             .format(suffix=str(suffix), **row)),
                     'system-bitrate': str(bitrate),
                     }
            ElementTree.SubElement(switch_tag, 'video', attrs)

        print prettify(doctype, root)
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