http://webhelp.esri.com/arcgisdesktop/9.3/index.cfm?id=1028&pid=980&topicname=ListEnvironments_metho...case-sensitive (at least in 10.0)...consult the online help examples for syntaxfor 10.0>>> import arcpy
>>> arcpy.listenvironments()
Traceback (most recent call last):
File "<interactive input>", line 1, in <module>
AttributeError: 'module' object has no attribute 'listenvironments'
fails but this works>>> arcpy.ListEnvironments()
[u'newPrecision', u'autoCommit', u'XYResolution', u'XYDomain', u'scratchWorkspace', u'terrainMemoryUsage', u'MTolerance', u'compression', u'coincidentPoints', u'randomGenerator', u'outputCoordinateSystem', u'rasterStatistics', u'ZDomain', u'snapRaster', u'projectCompare', u'cartographicCoordinateSystem', u'configKeyword', u'outputZFlag', u'qualifiedFieldNames', u'tileSize', u'pyramid', u'referenceScale', u'extent', u'XYTolerance', u'tinSaveVersion', u'MDomain', u'spatialGrid1', u'cellSize', u'outputZValue', u'outputMFlag', u'geographicTransformations', u'spatialGrid2', u'ZResolution', u'mask', u'spatialGrid3', u'maintainSpatialIndex', u'workspace', u'MResolution', u'derivedPrecision', u'ZTolerance']