没有名为“ Twisted”的模块

Question

I just installed Python to start experimenting a bit with Scrapy. Found a tutorial to first install Miniconda and with this I was able to install Scrapy. Now the problem is that the software I'm trying to run also requires Twisted. So I installed twisted with pip.

Twisted seems to have been installed correctly but I'm still getting an error when running the script that the Twisted module could not be found.

Python 3.6.3 (v3.6.3:2c5fed8, Oct  3 2017, 17:26:49) [MSC v.1900 32 bit (Intel)] on win32
Type "copyright", "credits" or "license()" for more information.
>>> 
================ RESTART: C:\xampp\htdocs\crawler\crawler.py ================
Traceback (most recent call last):
  File "C:\xampp\htdocs\crawler\crawler.py", line 3, in <module>
    from scrapy.utils.project import get_project_settings
  File "C:\xampp\htdocs\crawler\scrapy\__init__.py", line 43, in <module>
    from twisted import version as _txv
ModuleNotFoundError: No module named 'twisted'
>>> 
================ RESTART: C:\xampp\htdocs\crawler\crawler.py ================
Traceback (most recent call last):
  File "C:\xampp\htdocs\crawler\crawler.py", line 3, in <module>
    from scrapy.utils.project import get_project_settings
  File "C:\xampp\htdocs\crawler\scrapy\__init__.py", line 43, in <module>
    from twisted import version as _txv
ModuleNotFoundError: No module named 'twisted'
>>> 

Anybody a suggestion?

Thanks in advance,

Answer 1

To try if twisted correctly installed, start python interpreter and type

import twisted

If you can't import twisted, you should check if it is in your python path. Python path can be checked in the python interpreter as

import sys
print sys.path

The directory, where your twisted is installed has to be among those folders.

Answer 2

You installed twisted for python2. When you use the command pip , you are installing a package for python2. You are using python3 (3.6.3). To install twisted for python3, you have to do:

pip3 install twisted

I hope this helps.