AttributeError: 'NoneType' object has no attribute 'endswith'

[ob7]

Traceback (most recent call last):
File "./svg_stack.py", line 713, in
main()
File "./svg_stack.py", line 706, in main
layout.addSVG(fname,alignment=AlignCenter)
File "./svg_stack.py", line 632, in addSVG
svg_file = SVGFile(svg_file)
File "./svg_stack.py", line 181, in init
height, height_units = get_unit_attr(self._root.get('height'))
File "./svg_stack.py", line 44, in get_unit_attr
if value.endswith(unit_name):
AttributeError: 'NoneType' object has no attribute 'endswith'

I'm getting this error when running svg_stack via the following commands:
python2 ./svg_stack.py --direction=h --margin=100 virus.svg web-interface.svg > shapes.svg
python ./svg_stack.py --direction=h --margin=100 virus.svg web-interface.svg > shapes.svg
./svg_stack.py --direction=h --margin=100 virus.svg web-interface.svg > shapes.svg

I also tried running ./setup.py install and
svg_stack.py --direction=h --margin=100 virus.svg web-interface.svg > shapes.svg

gives same error.

I've also installed python-lxml and python3-lxml to no avail. Any idea what I'm doing wrong here?

[ob7]

By the way, this doesn't happen when using the SVG's provided in the example, those work.

My SVG's look like this:

<?xml version="1.0" encoding="iso-8859-1"?>
<!-- Generator: Adobe Illustrator 19.0.0, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
<svg version="1.1" id="Capa_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
     viewBox="0 0 511 511" style="enable-background:new 0 0 511 511;" xml:space="preserve">
<g>
    <path d="M39.5,103c1.97,0,3.91-0.8,5.3-2.2c1.4-1.39,2.2-3.33,2.2-5.3s-0.8-3.91-2.2-5.3c-1.39-1.4-3.32-2.2-5.3-2.2
        s-3.91,0.8-5.3,2.2c-1.4,1.39-2.2,3.33-2.2,5.3s0.8,3.91,2.2,5.3C35.59,102.2,37.53,103,39.5,103z"/>
    <path d="M63.5,103c1.98,0,3.91-0.8,5.3-2.2c1.4-1.39,2.2-3.33,2.2-5.3s-0.8-3.91-2.2-5.3c-1.39-1.4-3.33-2.2-5.3-2.2
        c-1.97,0-3.91,0.8-5.3,2.2c-1.4,1.39-2.2,3.33-2.2,5.3s0.8,3.91,2.2,5.3C59.59,102.2,61.52,103,63.5,103z"/>
    <path d="M87.5,103c1.97,0,3.91-0.8,5.3-2.2c1.4-1.39,2.2-3.33,2.2-5.3s-0.8-3.91-2.2-5.3c-1.39-1.4-3.33-2.2-5.3-2.2
        c-1.97,0-3.91,0.8-5.3,2.2c-1.4,1.39-2.2,3.33-2.2,5.3s0.8,3.91,2.2,5.3C83.59,102.2,85.53,103,87.5,103z"/>
    <path d="M119.5,103h304c4.142,0,7.5-3.358,7.5-7.5s-3.358-7.5-7.5-7.5h-304c-4.142,0-7.5,3.358-7.5,7.5S115.358,103,119.5,103z"/>
    <path d="M455.5,103h16c4.142,0,7.5-3.358,7.5-7.5s-3.358-7.5-7.5-7.5h-16c-4.142,0-7.5,3.358-7.5,7.5S451.358,103,455.5,103z"/>
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        C248,323.642,251.358,327,255.5,327z"/>
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        h-432C25.991,440,15,429.009,15,415.5V135h481v280.5C496,429.009,485.009,440,471.5,440z"/>
</g>
<g>
</g>
<g>
</g>
<g>
</g>
<g>
</g>
<g>
</g>
<g>
</g>
<g>
</g>
<g>
</g>
<g>
</g>
<g>
</g>
<g>
</g>
<g>
</g>
<g>
</g>
<g>
</g>
<g>
</g>
</svg>

[math2001]

Same, this is annoying. But a small tweak did the job:

  def get_unit_attr(value):
      # coordinate handling from http://www.w3.org/TR/SVG11/coords.html#Units
      units = None # default (user)
+     if value is None:
+         return 0.0, 'px'
      for unit_name in UNITS:
          if value.endswith(unit_name):
              units = unit_name
              value = value[:-len(unit_name)]
              break
      val_float = float(value) # this will fail if units str not parsed
      return val_float, units

[briandavidelliott]

Thank you so much @math2001 !!! This helped get the script working for me!

[astraw]

Confirmed fixed in 3c150a3. Sorry for the delay and thanks for the report.