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#### 11.2.22 package-name [Function]

`package-name` package ⇒ name

#### Arguments and Values::

package—a package designator.

name—a string

or nil.

#### Description::

package-name returns the string that names package,

or nil if the package designator is a package object that has no name (see the function delete-package).

#### Examples::

     (in-package "COMMON-LISP-USER") ⇒  #<PACKAGE "COMMON-LISP-USER">
     (package-name *package*) ⇒  "COMMON-LISP-USER"
     (package-name (symbol-package :test)) ⇒  "KEYWORD"
     (package-name (find-package 'common-lisp)) ⇒  "COMMON-LISP"

     (defvar *foo-package* (make-package "FOO"))
     (rename-package "FOO" "FOO0")
     (package-name *foo-package*) ⇒  "FOO0"

#### Exceptional Situations::

Should signal an error of type type-error if package is not a package designator.