Example¶

This page give some examples and code snippets to use Guerilla parser.

Parse given file¶

Use the parse() method to parse and get GuerillaParser object interfacing the parsed document:

>>> import guerilla_parser
>>> p = guerilla_parser.parse("/home/user/my_project.gproject")

Iterate over every node¶

This snippet use GuerillaParser.nodes property to iterate over every parsed node.

>>> for node in p.nodes:
>>>     print node.path, node.type

Get every reference files¶

This snippet list every reference file.

This can be useful to list Alembic files from a gproject.

>>> for node in p.nodes:
>>>     if node.type == 'ArchReference':
>>>         print node.get_plug('ReferenceFileName')

Get root node¶

For a gproject file, root node is the document node.

>>> doc = p.root
>>> print doc.get_plug('FirstFrame').value
101
>>> print doc.get_plug('LastFrame').value
150

Get node name, path and type¶

>>> print node.name
'RenderGraph'
>>> print node.path
'|RenderGraph'
>>> print node.type
'RenderGraph'

Get parent node¶

>>> print node.parent
GuerillaNode(44, 'RenderGraph', 'RenderGraph')

Get node display name¶

This is useful for aov nodes.

>>> print node.display_name
'Beauty'

Iterate over every children of a node¶

>>> for child in node.children:
>>>     print child.path

Get node children by its name¶

>>> node.get_child("RenderPass")

Get node from its path¶

>>> p.path_to_node('|RenderPass|Layer|Input1')

Get node plug from its name¶

>>> node.get_plug('NodePos')

Get plug from it’s path¶

>>> p.path_to_plug('|RenderPass.BrdfSamples')

Iterate over render passes, render ayers and AOVs¶

>>> rp_iter = (n for n in p.nodes if n.type == 'RenderPass')
>>> for rp in rp_iter:
>>>     rl_iter = (n for n in rp.children if n.type == 'RenderLayer')
>>>     for rl in rl_iter:
>>>         aov_iter = (n for n in rp.children if n.type == 'LayerOut')
>>>         for aov in aov_iter:
>>>             print aov.path, aov.display_name

Iterate over every plug of a node¶

>>> for plug in node.plugs:
>>>     print plug.path, plug.type
>>>     if plug.input:  # does node plug have incoming plug?
>>>         print plug.input.path, "->", plug.path
>>>     else:  # no incoming plug? get it's value
>>>         print plug.value
>>>     # if this plug is connected to other plug, we print it
>>>     for out_plug in plug.outputs:
>>>         print plug.path, "->", out_plug.path