AttributeError: 'module' object has no attribute 'run' 

```
 \lec.ker>python lecker.py
Traceback (most recent call last):
  File "lecker.py", line 94, in <module>
    web.run(urls, web.reloader)
AttributeError: 'module' object has no attribute 'run'
```
both python27  and python36  report error 