melOptions

Go to: Synopsis. Return value. Flags. Python examples.

Synopsis

melOptions([duplicateVariableWarnings=boolean])

Note: Strings representing object names and arguments must be separated by commas. This is not depicted in the synopsis.

melOptions is NOT undoable, queryable, and NOT editable.

Return value

None

In query mode, return type is based on queried flag.

Flags

Long name (short name)	Argument types	Properties
duplicateVariableWarnings(dvw)	boolean
When turned on, this option will cause a warning to be generated whenever a MEL variable is declared within the same scope as another variable with the same name. The warnings will be generated when the script is sourced, not when it is executed. Usually these warnings indicate an error in the script. On query the current setting of the option will be returned. The corresponding preference optionVar is melDuplicateVariableWarnings.

Flag can appear in Create mode of command	Flag can appear in Edit mode of command
Flag can appear in Query mode of command	Flag can have multiple arguments, passed either as a tuple or a list.

Python examples

import maya.cmds as cmds

#	To find out if there are any duplicate variable declarations in
#	a script:

#	Save the current setting of the duplicateVariableWarnings option.
optionVal = cmds.melOptions(q=True, duplicateVariableWarnings=True)

#	Turn the option on.
cmds.melOptions(duplicateVariableWarnings=True)

#	Source the script and see all the warnings generated.
import maya.mel as mm
mm.eval('source "myScript.mel"')

// Warning: 	int $i; //
// Warning: "myScript.mel" line 5.8 : Redeclaration of variable "$i" shadows previous declaration at line 3. Previous value will be retained. //

#	Restore the option to its original value.
cmds.melOptions(duplicateVariableWarnings=optionVal)