Thanks Andy, that was helpful. In my example foo.bar is in *loaded-libs*
I removed it by calling (clojure.tools.namespace.reload/remove-lib 'foo.bar) Interestingly when I then did a require I get a different error, the file is loaded, but the namespace not found. (require '[foo.bar :as bar]) => CompilerException java.lang.Exception: namespace 'foo.bar' not found after loading '/foo/bar', compiling:(*cider-repl foo*:65:7) Cheers Mark On Wed, 20 Dec 2017 at 00:30 Andy Fingerhut <andy.finger...@gmail.com> wrote: > I don't have the answer, but perhaps a clue that might lead you to one: > the function remove-lib inside of the tools.namespace library does this: > > (defn remove-lib > "Remove lib's namespace and remove lib from the set of loaded libs." > [lib] > (remove-ns lib) > (dosync (alter @#'clojure.core/*loaded-libs* disj lib))) > > I suspect that perhaps since in your example REPL session you are not > doing anything to change clojure.core/*loaded-libs*, that perhaps it still > contains the namespace name on which you called remove-ns. *loaded-libs* > is modified by functions used to implement the behavior of 'require', > because require tries to avoid re-loading namespaces that have already been > loaded earlier. > > Andy > > On Tue, Dec 19, 2017 at 2:14 PM, Mark Melling < > mark.mell...@savageminds.com> wrote: > >> Hi, >> >> Apologies in advance for the possibly stupid question! >> >> I was having a problem with clojure.tools.namespace.repl/refresh where a >> namespace that had been successfully loaded subsequently failed to be >> reloaded when doing a repl/refresh. >> >> Whilst investigating the problem, (this is probably totally unrelated to >> my issue), I realised I didn't understand how remove-ns and require >> actually work. >> >> To illustrate this I did the following: >> >> (require '[foo.bar :as bar]) >> => nil >> (remove-ns 'foo.bar) >> => #namespace[foo.bar] >> (require '[foo.bar :as bar]) >> => CompilerException java.lang.Exception: namespace 'foo.bar' not found, >> compiling:(*cider-repl foo*:30:7) >> >> >> >> >> So what does remove-ns do to cause the second require to fail? >> >> >> >> Thanks >> >> Mark >> >> >> -- >> You received this message because you are subscribed to the Google >> Groups "Clojure" group. >> To post to this group, send email to clojure@googlegroups.com >> Note that posts from new members are moderated - please be patient with >> your first post. >> To unsubscribe from this group, send email to >> clojure+unsubscr...@googlegroups.com >> For more options, visit this group at >> http://groups.google.com/group/clojure?hl=en >> --- >> > You received this message because you are subscribed to the Google Groups >> "Clojure" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to clojure+unsubscr...@googlegroups.com. > > >> For more options, visit https://groups.google.com/d/optout. >> > -- > You received this message because you are subscribed to the Google > Groups "Clojure" group. > To post to this group, send email to clojure@googlegroups.com > Note that posts from new members are moderated - please be patient with > your first post. > To unsubscribe from this group, send email to > clojure+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/clojure?hl=en > --- > You received this message because you are subscribed to a topic in the > Google Groups "Clojure" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/clojure/YEY7lbrNB2w/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > clojure+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
