&optional
package → tunexport reverts external symbols in package to internal status; it undoes the effect of export.
unexport works only on symbols present in package, switching them back to internal status. If unexport is given a symbol that is already accessible as an internal symbol in package, it does nothing.
(in-package "COMMON-LISP-USER") → #<PACKAGE "COMMON-LISP-USER"> (export (intern "CONTRABAND" (make-package 'temp)) 'temp) → T (find-symbol "CONTRABAND") → NIL, NIL (use-package 'temp) → T (find-symbol "CONTRABAND") → CONTRABAND, :INHERITED (unexport 'contraband 'temp) → T (find-symbol "CONTRABAND") → NIL, NIL
Package system is modified.
Current state of the package system.
If unexport is given a symbol not accessible in package at all, an error of type package-error is signaled.
The consequences are undefined if package is the keyword
package or the common-lisp
package.
None.
\issue{PACKAGE-FUNCTION-CONSISTENCY:MORE-PERMISSIVE}