old_contents: from paste.cascade import Cascade
  from paste.errordocument import make_errordocument
  from paste.recursive import RecursiveMiddleware
  from paste.urlparser import StaticURLParser
  from weberror.errormiddleware import ErrorMiddleware
  from weberror.evalexception import EvalException
  
  from core import abort, error_for, override_template, Pecan, redirect, render, request, response, ValidationException
  from decorators import expose
  from templating import error_formatters
  
  from configuration import set_config
  from configuration import _runtime_conf as conf
  
  __all__ = [
      'make_app', 'Pecan', 'request', 'response', 'override_template', 'expose', 'conf', 'set_config', 'use_config'
  ]
  
  def make_app(root, static_root=None, debug=False, errorcfg={}, wrap_app=None, **kw):
  
  
      app = Pecan(root, **kw)
      if wrap_app:
          app = wrap_app(app)
      app = RecursiveMiddleware(app)
      if debug:
          app = EvalException(app, templating_formatters=error_formatters, **errorcfg)
      else:
          app = ErrorMiddleware(app, **errorcfg)
      app = make_errordocument(app, conf, **conf.app.errors)
      if static_root:
          app = Cascade([StaticURLParser(static_root), app])
      return app
  
new_contents: from paste.cascade import Cascade
  from paste.errordocument import make_errordocument
  from paste.recursive import RecursiveMiddleware
  from paste.urlparser import StaticURLParser
  from weberror.errormiddleware import ErrorMiddleware
  from weberror.evalexception import EvalException
  
  from core import abort, error_for, override_template, Pecan, redirect, render, request, response, ValidationException
  from decorators import expose
  from templating import error_formatters
  
  from configuration import set_config
  from configuration import _runtime_conf as conf
  
  __all__ = [
      'make_app', 'Pecan', 'request', 'response', 'override_template', 'expose', 'conf', 'set_config' 
  ]
  
  def make_app(root, static_root=None, debug=False, errorcfg={}, wrap_app=None, **kw):
  
  
      app = Pecan(root, **kw)
      if wrap_app:
          app = wrap_app(app)
      app = RecursiveMiddleware(app)
      if debug:
          app = EvalException(app, templating_formatters=error_formatters, **errorcfg)
      else:
          app = ErrorMiddleware(app, **errorcfg)
      app = make_errordocument(app, conf, **conf.app.errors)
      if static_root:
          app = Cascade([StaticURLParser(static_root), app])
      return app
  
subject: remove unused method use_config from __all__