Here's an interesting clue. I added "print type(fp)" after the temp file is
opened to see what kind of file object was returned by the open call and
got this traceback. How is the type function getting overloaded with
svn_fs_type? So far I haven't been able to recreate this with a short
hello-world program. So I'm sure something is going wrong in the chain of
imports somewhere between mailer.py and fs.py.
File "/usr/lib64/python2.7/site-packages/svn/fs.py", line 80, in
_dump_contents
print type(fp)
File "/usr/lib64/python2.7/site-packages/libsvn/fs.py", line 122, in
svn_fs_type
return _fs.svn_fs_type(*args)
TypeError: must be string, not _io.TextIOWrapper
