Comment 1 for bug 202773

Confirmed in pbuilder:

Setting up python-pisock (0.12.3-4) ...

Setting up python-pisock-dbg (0.12.3-4) ...
/usr/sbin/update-python-modules:124: DeprecationWarning: raising a string exception is deprecated
  raise "Trying to overwrite %s which is already provided by %s"%(os.path.join(dir,file),otherdir)
Traceback (most recent call last):
  File "/usr/sbin/update-python-modules", line 335, in <module>
    process(basedir,install_modules(py_installed))
  File "/usr/sbin/update-python-modules", line 159, in process
    func(basedir, dir, file)
  File "/usr/sbin/update-python-modules", line 124, in install_modules_func
    raise "Trying to overwrite %s which is already provided by %s"%(os.path.join(dir,file),otherdir)
Trying to overwrite python_libpisock-0.12.3.egg-info which is already provided by /usr/share/python-support/python-pisock
dpkg: error processing python-pisock-dbg (--configure):
 subprocess post-installation script returned error exit status 1