安裝scrapy的方法：
其中，畫重點：
sudo apt-get install python-dev
sudo apt-get install libevent-dev
安裝後執行scrapy startproject projectnanme或scrapy -h，報錯:
traceback (most recent call last):
file "/home/gs/share/anaconda3/lib/python3.5/site-packages/setuptools-27.2.0-py3.5.egg/pkg_resources/__init__.py", line 660, in _build_master
file "/home/gs/share/anaconda3/lib/python3.5/site-packages/setuptools-27.2.0-py3.5.egg/pkg_resources/__init__.py", line 968, in require
file "/home/gs/share/anaconda3/lib/python3.5/site-packages/setuptools-27.2.0-py3.5.egg/pkg_resources/__init__.py", line 859, in resolve
pkg_resources.contextualversionconflict: (pyasn1 0.1.9 (/home/gs/share/anaconda3/lib/python3.5/site-packages), requirement.parse('pyasn1<0.4.0,>=0.3.4'), )
during handling of the above exception, another exception occurred:
traceback (most recent call last):
file "/home/gs/share/anaconda3/bin/scrapy", line 6, in
from pkg_resources import load_entry_point
file "", line 969, in _find_and_load
file "", line 958, in _find_and_load_unlocked
file "", line 664, in _load_unlocked
file "", line 634, in _load_backward_compatible
file "/home/gs/share/anaconda3/lib/python3.5/site-packages/setuptools-27.2.0-py3.5.egg/pkg_resources/__init__.py", line 2985, in
file "/home/gs/share/anaconda3/lib/python3.5/site-packages/setuptools-27.2.0-py3.5.egg/pkg_resources/__init__.py", line 2971, in _call_aside
file "/home/gs/share/anaconda3/lib/python3.5/site-packages/setuptools-27.2.0-py3.5.egg/pkg_resources/__init__.py", line 2998, in _initialize_master_working_set
file "/home/gs/share/anaconda3/lib/python3.5/site-packages/setuptools-27.2.0-py3.5.egg/pkg_resources/__init__.py", line 662, in _build_master
file "/home/gs/share/anaconda3/lib/python3.5/site-packages/setuptools-27.2.0-py3.5.egg/pkg_resources/__init__.py", line 675, in _build_from_requirements
file "/home/gs/share/anaconda3/lib/python3.5/site-packages/setuptools-27.2.0-py3.5.egg/pkg_resources/__init__.py", line 859, in resolve
pkg_resources.contextualversionconflict: (pyasn1 0.1.9 (/home/gs/share/anaconda3/lib/python3.5/site-packages), requirement.parse('pyasn1<0.4.0,>=0.3.4'), )
目測是依賴問題，搜尋一下，說是公升級pyasn1：
sudo pip install --upgrade pyasn1
easy_install pyasn1
然後繼續scrapy -h,無用，仍然報同樣的錯誤，應該用
pip install –upgrade pyasn1
到命令方式：easy_install pyasn1***.egg，然後測試，ok
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