ImportError: No module named 'twisted.persisted'

I haved install scrapy on Python 3.5.2, but when I exeute scrapy -v on command-line, it occurs:

>> scrapy -v
Traceback (most recent call last):
  File "/usr/bin/scrapy", line 7, in <module>
    from scrapy.cmdline import execute
  File "/usr/local/python3.5.2/lib/python3.5/site-packages/scrapy/__init__.py", line 27, in <module>
    from . import _monkeypatches
  File "/usr/local/python3.5.2/lib/python3.5/site-packages/scrapy/_monkeypatches.py", line 20, in <module>
    import twisted.persisted.styles  # NOQA
ImportError: No module named 'twisted.persisted'

So I enter ipython3 to ensure whether it’s installed porperly:

In [2]: import twisted
In [3]: twisted.version
Out[3]: Version('twisted', 15, 2, 1)

But when I import scrapy, the same as command-line:

In [4]: import scrapy
---------------------------------------------------------------------------
ImportError                               Traceback (most recent call last)
<ipython-input-4-51c73a18167b> in <module>()
----> 1 import scrapy

/usr/local/python3.5.2/lib/python3.5/site-packages/scrapy/__init__.py in <module>()
     25 
     26 # Apply monkey patches to fix issues in external libraries
---> 27 from . import _monkeypatches
     28 del _monkeypatches
     29 

/usr/local/python3.5.2/lib/python3.5/site-packages/scrapy/_monkeypatches.py in <module>()
     18 # Undo what Twisted's perspective broker adds to pickle register
     19 # to prevent bugs like Twisted#7989 while serializing requests
---> 20 import twisted.persisted.styles  # NOQA
     21 # Remove only entries with twisted serializers for non-twisted types.
     22 for k, v in frozenset(copyreg.dispatch_table.items()):

ImportError: No module named 'twisted.persisted'

I’m so confused, I just want to run a spaider, So help me ! 🆘

[kelein]

@rolando Thanks a lot ! Conda is useful, my pip works again after installing conda. And it’s easy to install scrapy just by conda install scrapy. 👍

[rmax]

@Keleir try using conda, see https://conda.io/docs/install/quick.html and https://doc.scrapy.org/en/latest/intro/install.html#anaconda