Question

Is there a way to get namespace object by its name? For example:

(def ns-symbol (ns-name *ns*))          ;; get namespace name as symbol
(def ns-object (ns-by-name ns-as-str))  ;; convert it back to namespace object

So in this example I need function ns-by-name.

Answer 1

(ns-name *ns*) returns a symbol not a string, so your ns-as-str is misnamed…

(type (ns-name *ns*))
clojure.lang.Symbol

Given that, converting it back is as simple as…

(find-ns (ns-name *ns*))
#<Namespace user>

If you really want the name of the namespace to be a string…

(def ns-as-str (str (ns-name *ns*)))
(def ns-object (find-ns (symbol ns-as-str))