42002
初質問です。

python3へscrapyをインストールする際、以下のエラーが出ました。

```

    Running setup.py install for pycparser ... error
    Exception:
    Traceback (most recent call last):
        File "c:\program files\python36\lib\site-packages\pip\compat\__init__.py", line 73, in console_to_str
            return s.decode(sys.__stdout__.encoding)
    UnicodeDecodeError: 'utf-8' codec can't decode byte 0x83 in position 81: invalid start byte
    
    During handling of the above exception, another exception occurred:
    
    Traceback (most recent call last):
        File "c:\program files\python36\lib\site-packages\pip\basecommand.py", line 215, in main
            status = self.run(options, args)
        File "c:\program files\python36\lib\site-packages\pip\commands\install.py", line 342, in run
            prefix=options.prefix_path,
        File "c:\program files\python36\lib\site-packages\pip\req\req_set.py", line 784, in install
            **kwargs
        File "c:\program files\python36\lib\site-packages\pip\req\req_install.py", line 878, in install
            spinner=spinner,
        File "c:\program files\python36\lib\site-packages\pip\utils\__init__.py", line 676, in call_subprocess
            line = console_to_str(proc.stdout.readline())
        File "c:\program files\python36\lib\site-packages\pip\compat\__init__.py", line 75, in console_to_str
            return s.decode('utf_8')
    UnicodeDecodeError: 'utf-8' codec can't decode byte 0x83 in position 81: invalid start byte
    
```

※インストール開始から終了までのログは文末をご覧ください。

デコードができるようにするためにはなにをすればいいのか、  
お手数ですが、ご教授いただければ幸いです。  
よろしくお願いいたします。

環境は以下の通りです。  
OS：Windows 10 Home  
システムの種類：64-bit  
Python：3.6.0  
Anaconda：4.3.0 (64-bit)  
また、インストールしたり、.pyを実行したりする際は、MINGW64を使用しています。

以下は、scrapyのインストール開始から終了までのログです。

```

    $ pip3 install scrapy
    
    Collecting scrapy
      Using cached Scrapy-1.5.0-py2.py3-none-any.whl
    Collecting pyOpenSSL (from scrapy)
      Using cached pyOpenSSL-17.5.0-py2.py3-none-any.whl
    Collecting parsel>=1.1 (from scrapy)
      Using cached parsel-1.4.0-py2.py3-none-any.whl
    Collecting PyDispatcher>=2.0.5 (from scrapy)
    Requirement already satisfied: six>=1.5.2 in c:\program files\python36\lib\site-packages (from scrapy)
    Collecting cssselect>=0.9 (from scrapy)
      Using cached cssselect-1.0.3-py2.py3-none-any.whl
    Collecting lxml (from scrapy)
      Using cached lxml-4.1.1-cp36-cp36m-win_amd64.whl
    Collecting queuelib (from scrapy)
      Using cached queuelib-1.4.2-py2.py3-none-any.whl
    Collecting w3lib>=1.17.0 (from scrapy)
      Using cached w3lib-1.19.0-py2.py3-none-any.whl
    Collecting Twisted>=13.1.0 (from scrapy)
      Using cached Twisted-17.9.0.tar.bz2
    Collecting service-identity (from scrapy)
      Using cached service_identity-17.0.0-py2.py3-none-any.whl
    Collecting cryptography>=2.1.4 (from pyOpenSSL->scrapy)
      Using cached cryptography-2.1.4-cp36-cp36m-win_amd64.whl
    Collecting zope.interface>=4.0.2 (from Twisted>=13.1.0->scrapy)
      Using cached zope.interface-4.4.3-cp36-cp36m-win_amd64.whl
    Collecting constantly>=15.1 (from Twisted>=13.1.0->scrapy)
      Using cached constantly-15.1.0-py2.py3-none-any.whl
    Collecting incremental>=16.10.1 (from Twisted>=13.1.0->scrapy)
      Using cached incremental-17.5.0-py2.py3-none-any.whl
    Collecting Automat>=0.3.0 (from Twisted>=13.1.0->scrapy)
      Using cached Automat-0.6.0-py2.py3-none-any.whl
    Collecting hyperlink>=17.1.1 (from Twisted>=13.1.0->scrapy)
      Using cached hyperlink-17.3.1-py2.py3-none-any.whl
    Collecting attrs (from service-identity->scrapy)
      Using cached attrs-17.4.0-py2.py3-none-any.whl
    Collecting pyasn1-modules (from service-identity->scrapy)
      Using cached pyasn1_modules-0.2.1-py2.py3-none-any.whl
    Collecting pyasn1 (from service-identity->scrapy)
      Using cached pyasn1-0.4.2-py2.py3-none-any.whl
    Collecting cffi>=1.7; platform_python_implementation != "PyPy" (from cryptography>=2.1.4->pyOpenSSL->scrapy)
      Using cached cffi-1.11.4-cp36-cp36m-win_amd64.whl
    Collecting asn1crypto>=0.21.0 (from cryptography>=2.1.4->pyOpenSSL->scrapy)
      Using cached asn1crypto-0.24.0-py2.py3-none-any.whl
    Requirement already satisfied: idna>=2.1 in c:\program files\python36\lib\site-packages (from cryptography>=2.1.4->pyOpenSSL->scrapy)
    Requirement already satisfied: setuptools in c:\program files\python36\lib\site-packages (from zope.interface>=4.0.2->Twisted>=13.1.0->scrapy)
    Collecting pycparser (from cffi>=1.7; platform_python_implementation != "PyPy"->cryptography>=2.1.4->pyOpenSSL->scrapy)
      Using cached pycparser-2.18.tar.gz
    Installing collected packages: pycparser, cffi, asn1crypto, cryptography, pyOpenSSL, cssselect, lxml, w3lib, parsel, PyDispatcher, queuelib, zope.interface, constantly, incremental, attrs, Automat, hyperlink, Twisted, pyasn1, pyasn1-modules, service-identity, scrapy
      Running setup.py install for pycparser ... error
    Exception:
    Traceback (most recent call last):
      File "c:\program files\python36\lib\site-packages\pip\compat\__init__.py", line 73, in console_to_str
            return s.decode(sys.__stdout__.encoding)
    UnicodeDecodeError: 'utf-8' codec can't decode byte 0x83 in position 81: invalid start byte
    
    During handling of the above exception, another exception occurred:
    
    Traceback (most recent call last):
      File "c:\program files\python36\lib\site-packages\pip\basecommand.py", line 215, in main
            status = self.run(options, args)
      File "c:\program files\python36\lib\site-packages\pip\commands\install.py", line 342, in run
            prefix=options.prefix_path,
      File "c:\program files\python36\lib\site-packages\pip\req\req_set.py", line 784, in install
            **kwargs
      File "c:\program files\python36\lib\site-packages\pip\req\req_install.py", line 878, in install
            spinner=spinner,
      File "c:\program files\python36\lib\site-packages\pip\utils\__init__.py", line 676, in call_subprocess
            line = console_to_str(proc.stdout.readline())
      File "c:\program files\python36\lib\site-packages\pip\compat\__init__.py", line 75, in console_to_str
            return s.decode('utf_8')
    UnicodeDecodeError: 'utf-8' codec can't decode byte 0x83 in position 81: invalid start byte
    
```
CC BY-SA 3.0
2018-02-25T10:51:27.723
41997
2018-02-26T00:54:26.123
question
python
python3へscrapyをインストールする際のエラー解決方法
Anacondaを使っているのにpipでインストールする理由はなんでしょう?  
`conda install scrapy`する方がいいのでは。

エラーの原因などは[こちら](https://ja.stackoverflow.com/questions/39360/pip%E3%81%A7pyperclip%E3%81%8C%E3%82%A4%E3%83%B3%E3%82%B9%E3%83%88%E3%83%BC%E3%83%AB%E3%81%A7%E3%81%8D%E3%81%BE%E3%81%9B%E3%82%93-unicodedecodeerror-
utf-8-codec-cant-decode-byte-0#answer-39364)が該当するかと。
CC BY-SA 3.0
2018-02-26T00:54:26.123
42002
2018-02-26T00:54:26.123
12274
41997
answer