## What I did

A friend reported this, and I'm seeing it too. With 3.20140916, on
a system with Python 2.7 and 3.4 (and little else) installed, I
tried to run the auto.setup:

    :; ikiwiki --setup /etc/pkg/ikiwiki/auto.setup
    What will the wiki be named? Import Errors
    What revision control system to use? git
    Which user (wiki account or openid) will be admin? schmonz
    
    
    Setting up Import Errors ...
    Importing /Users/schmonz/ImportErrors into git
    Initialized empty shared Git repository in /Users/schmonz/ImportErrors.git/
    Initialized empty Git repository in /Users/schmonz/ImportErrors/.git/
    [master (root-commit) 20b1128] initial commit
     1 file changed, 1 insertion(+)
     create mode 100644 .gitignore
    Counting objects: 3, done.
    Writing objects: 100% (3/3), 230 bytes | 0 bytes/s, done.
    Total 3 (delta 0), reused 0 (delta 0)
    To /Users/schmonz/ImportErrors.git
     * [new branch]      master -> master
    Directory /Users/schmonz/ImportErrors is now a clone of git repository /Users/schmonz/ImportErrors.git
    Traceback (most recent call last):
      File "/usr/pkg/lib/ikiwiki/plugins/rst", line 45, in <module>
        from proxy import IkiWikiProcedureProxy
      File "/usr/pkg/lib/ikiwiki/plugins/proxy.py", line 41, in <module>
        import xml.parsers.expat
      File "/usr/pkg/lib/python3.4/xml/parsers/expat.py", line 4, in <module>
        from pyexpat import *
    ImportError: No module named 'pyexpat'
    
    
    Creating wiki admin schmonz ...
    Choose a password:
    [...]

## What I expected

I expected to get a basic site.

## What happened instead

I got a basic site with some Python error messages.

## Likely fix

Looks like `proxy.py` needs the trick from [[!debbug 637604]] so
that it can defer a few imports (at least `xml.parsers.expat` and
the XML-RPC libs) until the methods using them are called. --[[schmonz]]