using arcpy.env.workspace to open a MXD

JohnNerge

So my script was working on Friday but doesn't anymore, and I can't figure out why. Basically, I am running into an error when trying to set the environment workspace and use it to open a MXD. Here is a dumbed down version of the piece of my code that is throwing an error (it throws the same error as what's in my actual code:

import arcpy

arcpy.env.workspace = "C:/test"

mapdoc = "test.mxd"

mxd = arcpy.mapping.MapDocument(mapdoc)

and here is the error:
>>> Traceback (most recent call last):
  File "C:\Python26\ArcGIS10.0\Lib\site-packages\pythonwin\pywin\framework\interact.py", line 558, in OnEditExecClipboard
    exec o in __main__.__dict__
  File "<clipboard>", line 7, in <module>
  File "C:\Program Files (x86)\ArcGIS\Desktop10.0\arcpy\arcpy\arcobjects\mixins.py", line 443, in __init__
    assert (os.path.isfile(mxd) or (mxd.lower() == "current")), gp.getIDMessage(89004, "Invalid MXD filename")
AssertionError: Invalid MXD filename.

If I run arcpy.mapping.MapDocument("C:/test/test.mxd") it works fine, so I don't know where things are getting hung up. Please help, and thanks in advance to all for any input.

MathewCoyle

It requires the full path. The MapDocument object does not respect workspaces.
http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//00s30000000r000000