Learn Pyblish By Example - Quickstart 1.4

quickstart.py

"""Full Example

From https://pyblish.gitbooks.io/pyblish-by-example/content/chapters/02-quickstart.html

Usage:
  Copy and run this entire file in your Maya Script Editor

"""

import os
import shutil
from datetime import datetime

import pyblish.api
import pyblish_maya

from maya import cmds

# Install Pyblish for Autodesk Maya
pyblish_maya.setup()

# ----------------------------------------------------------------------------
#
# Generate Scene
#
# ----------------------------------------------------------------------------


cmds.file(new=True, force=True)
cmds.polyCube(name="geometry")
cmds.sets(name="pointcache_SEL")
cmds.circle(name="control")
cmds.sets(name="controls_SEL")
cmds.select(["geometry", "control"])
cmds.group(name="Bruce_GRP")
cmds.select(["Bruce_GRP", "pointcache_SEL", "controls_SEL"], noExpand=True)
cmds.sets(name="Bruce_RIG")

# Save the scene
cmds.file(rename="scene.ma")
cmds.file(save=True, type="mayaAscii")


# ----------------------------------------------------------------------------
#
# Publish
#
# ----------------------------------------------------------------------------


class CollectRig(pyblish.api.ContextPlugin):
  """Discover and collect available rigs into the context"""

  order = pyblish.api.CollectorOrder

  def process(self, context):
    for node in cmds.ls(sets=True):
      if not node.endswith("_RIG"):
        continue
 
      name = node.rsplit("_", 1)[0]
      instance = context.create_instance(name, family="rig")

      # Collect associated nodes
      members = cmds.sets(node, query=True)
      cmds.select([node] + members, noExpand=True)
      instance[:] = cmds.file(
        constructionHistory=True,
        exportSelected=True,
        preview=True,
        force=True)


class ValidateRigContents(pyblish.api.InstancePlugin):
  """Ensure rig has the appropriate object sets"""

  order = pyblish.api.ValidatorOrder
  families = ["rig"]

  def process(self, instance):
    assert "controls_SEL" in instance, "%s is missing a controls set" % instance
    assert "pointcache_SEL" in instance, "%s is missing a pointcache set" % instance


class ExtractRig(pyblish.api.InstancePlugin):
  """Serialise valid rig"""

  order = pyblish.api.ExtractorOrder
  families = ["rig"]
  hosts = ["maya"]

  def process(self, instance):
    context = instance.context

    dirname = os.path.dirname(context.data["currentFile"])
    name, family = instance.data["name"], instance.data["family"]
    date = datetime.now().strftime("%Y%m%dT%H%M%SZ")

    # Find a temporary directory with support for publishing multiple times.
    tempdir = os.path.join(dirname, "temp", date, family, name)
    tempfile = os.path.join(tempdir, name + ".ma")

    self.log.info("Exporting %s to %s" % (instance, tempfile))

    if not os.path.exists(tempdir):
        os.makedirs(tempdir)

    cmds.select(instance, noExpand=True)  # `instance` a list
    cmds.file(tempfile,
              type="mayaAscii",
              exportSelected=True,
              constructionHistory=False,
              force=True)

    # Store reference for integration
    instance.set_data("tempdir", tempdir)


class IntegrateRig(pyblish.api.InstancePlugin):
  """Copy files to an appropriate location where others may reach it"""

  order = pyblish.api.IntegratorOrder
  families = ["rig"]

  def process(self, instance):
    assert instance.data("tempdir"), "Can't find rig on disk, aborting.."

    self.log.info("Computing output directory..")
    context = instance.context
    dirname = os.path.dirname(context.data("currentFile"))
    root = os.path.join(dirname, "public")
    
    if not os.path.exists(root):
        os.makedirs(root)

    version = "v%03d" % (len(os.listdir(root)) + 1)

    src = instance.data("tempdir")
    dst = os.path.join(root, version)

    self.log.info("Copying %s to %s.." % (src, dst))

    shutil.copytree(src, dst)
    self.log.info("Copied successfully!")


pyblish.api.register_plugin(CollectRig)
pyblish.api.register_plugin(ValidateRigContents)
pyblish.api.register_plugin(ExtractRig)
pyblish.api.register_plugin(IntegrateRig)

# Run
import pyblish.util
pyblish.util.publish()

This looks like a Python 3 issue, and I would double-check you've got the latest current version of pyblish-maya, because this one does appear to work.

• https://github.com/pyblish/pyblish-maya/blob/master/pyblish_maya/version.py

You can install directly from GitHub with..

pip install git+https://github.com/pyblish/pyblish-maya.git