Starting python Klein using twistd throws no module Error

Question

• Hi, I am trying to start a Klein server using twistd method. I tried it by reading the Klein documentation.
• But when I tried to start the server, it says no module found.

Here is the sample code of what i tried,

helloworld.py :

from klein import Klein
from klein import resource, route
app = Klein()

@route('/')
def hello(request):
    return "Hello, world!"

Then I run the following command:

twistd -n web --class=helloworld.resource

I got the following error :

File "C:\Python27\lib\site-packages\twisted\python\reflect.py", line 165, in namedObject
    module = namedModule('.'.join(classSplit[:-1]))
  File "C:\Python27\lib\site-packages\twisted\python\reflect.py", line 151, in namedModule
    topLevel = __import__(name)
ImportError: No module named helloworld

Answer 1

Put the directory containing your helloworld.py into the import path. For example, add it to PYTHONPATH:

$ PYTHONPATH=${PWD} twistd -n web --class=helloworld.resource