Failed to install iPython?
No, but it looks like you installed it using (darwinports or) macports - I assume that from your installation easy_install , since the native Apple Python system does not include extensions such as easy_install , and /opt/local/... where macports puts things.
If you're fine using Python versions for Macports and all, you need to make sure that the bin deep nested directory is on your $PATH so you can easily name things in your Terminal.app.
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