Including other libraries / files / plugins with nodejs and NPM

I'm using OSX 10.5 and playing around with Nodejs. I've managed to install npm and used it to install a couple of plugins. Well at least the installation says it has worked fine but when I try and load them in I get an error

$npm install htmlparser

Installs ok, then I create a file called test with

var htmlparser = require("node-htmlparser");

and run

$node test.js

I get

var htmlparser = require("node-htmlparser");
node.js:275
        throw new Error("Cannot find module '" + request + "'");

I have this in my .bash_profile file:

export NODE_PATH开发者_开发百科="/usr/local/lib/node"

If I clone the GIT repos at this page and move the file lib/node-htmlparser.js to ~/.node_libraries then it works fine.

What is the point of using npm to install anything if I have to move the lib file like this? Am I missing something ?

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var htmlparser = require('htmlparser') should work fine, since they knock the 'node' off the name.

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Use the exact name that you use to install the module via NPM.

If you do
npm install htmlparser

Then your syntax for using the module should be
var htmlparser = require("htmlparser");

If that doesn't work, I'd check your npm and/or node install, but with all the details you listed above, that should work fine.