KeyError, genshi/template/directives.py, line 130

Eli Stevens (Gmail)

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Nov 6, 2013, 2:40:49 AM11/6/13

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I'm getting the following when trying to render a template. Any suggestions on where I can look to figure out what is going wrong?

File "/home/elis/edit/.../mycontroller.py", line 39, in attachmentList

return render_response('mytemplate.html', context)

File "/home/elis/venv/m3d_dev/lib/python2.7/site-packages/flaskext/genshi.py", line 278, in render_response

template = render_template(template, context, method, string, filter)

File "/home/elis/venv/m3d_dev/lib/python2.7/site-packages/flaskext/genshi.py", line 266, in render_template

return template.render(**render_args)

File "/home/elis/venv/m3d_dev/lib/python2.7/site-packages/genshi/core.py", line 183, in render

return encode(generator, method=method, encoding=encoding, out=out)

File "/home/elis/venv/m3d_dev/lib/python2.7/site-packages/genshi/output.py", line 57, in encode

return _encode(''.join(list(iterator)))

File "/home/elis/venv/m3d_dev/lib/python2.7/site-packages/genshi/output.py", line 470, in __call__

for kind, data, _ in stream:

File "/home/elis/venv/m3d_dev/lib/python2.7/site-packages/genshi/output.py", line 826, in __call__

for kind, data, pos in stream:

File "/home/elis/venv/m3d_dev/lib/python2.7/site-packages/genshi/output.py", line 670, in __call__

for kind, data, pos in stream:

File "/home/elis/venv/m3d_dev/lib/python2.7/site-packages/genshi/output.py", line 771, in __call__

for kind, data, pos in chain(stream, [(None, None, None)]):

File "/home/elis/venv/m3d_dev/lib/python2.7/site-packages/genshi/output.py", line 586, in __call__

for ev in stream:

File "/home/elis/venv/m3d_dev/lib/python2.7/site-packages/genshi/core.py", line 288, in _ensure

for event in stream:

File "/home/elis/venv/m3d_dev/lib/python2.7/site-packages/genshi/template/base.py", line 605, in _include

for event in stream:

File "/home/elis/venv/m3d_dev/lib/python2.7/site-packages/genshi/template/markup.py", line 362, in _match

content = list(content)

File "/home/elis/venv/m3d_dev/lib/python2.7/site-packages/genshi/template/base.py", line 605, in _include

for event in stream:

File "/home/elis/venv/m3d_dev/lib/python2.7/site-packages/genshi/template/markup.py", line 316, in _strip

event = next()

File "/home/elis/venv/m3d_dev/lib/python2.7/site-packages/genshi/template/base.py", line 545, in _flatten

for kind, data, pos in stream:

File "/home/elis/venv/m3d_dev/lib/python2.7/site-packages/genshi/template/directives.py", line 367, in __call__

assign(scope, item)

File "/home/elis/venv/m3d_dev/lib/python2.7/site-packages/genshi/template/directives.py", line 130, in _assign

_assign(data, value[idx], names[idx])

KeyError: 0

Python 2.7.3 (default, Aug 1 2012, 05:14:39)

[GCC 4.6.3] on linux2

Type "help", "copyright", "credits" or "license" for more information.

>>> import genshi

>>> genshi.__version__

'0.6'

Thanks for any pointers,

Eli

Simon Cross

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Nov 6, 2013, 3:59:24 AM11/6/13

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Hi

It looks like your template has an assingment that is unpacking
something that can't be unpacked, e.g.

```
from genshi.template import MarkupTemplate
m = MarkupTemplate("""<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:py="http://genshi.edgewall.org/"><div py:for="x, y in
l"></div></html>""")
m.generate(l=[{}]).render()
```

Sorry the error message isn't great. Hope this helps.

Schiavo
Simon

Eli Stevens (Gmail)

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Nov 6, 2013, 11:39:29 AM11/6/13

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Helped a ton, thank you! I was able to figure out what I had been messing up by looking for unpacking (much faster than commenting out lines at random until the page works again ;).

Cheers,

Eli

Simon

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