I keep running into issues with web.py

Question

Okay, so I actually had an issue with this line of code beforehand but I realized, thanks to a fellow answer from this site, that I had to delete my web.py folder from my directory and reinstall an updated version. I decided to go with the developer version.

Upon doing so I noticed that my initial run of code worked, but after I updated it and refreshed my browser, I got a huge error. I have tried to fix this several times, and I reinstalled like 10 times. I went into debugger.py and found no real solution, as every time I updated it the code refused to run.

To better illustrate my error this is my code:

import web

urls = (
    '/(.*)', 'index'
)

app = web.application(urls, globals())
class index:
    def GET(self, name):
        print ("Hello", name, '. How are you today?')
if __name__=="__main__":
    app.run()

It runs without an error, but when open my page or refresh it after an initial run, it gives me this:

Error:

<class 'AttributeError'> at /
'NoneType' object has no attribute 'name'

Now keep in mind that my first run works, and if I restart my computer or reinstall web.py , it works the first time every time. But after that initial run, it just gives me the above error on the webpage.

Answer 1

This happens only when you have made some changes to your script. You can stop script ( ctrl+c ) and start it again, everything should work fine.

But i found workaround. On the top of your script (after imports) write:

__name__ = '<your main file name>'  # main2 for main2.py in my case

on the bottom replace

if __name__ == "__main__":

with

if __spec__ is None:

---

So the full script (main2.py) should look like:

import web
__name__ = 'main2'


urls = ("/.*", "hello")
app = web.application(urls, globals())

class hello:
    def GET(self):
        return 'Hello, world1!'

if __spec__ is None:
    app.run()