warp-ctc绑定pytorch出错解决办法

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本文提供了一套详细的指南，用于在Ubuntu16.04上安装Python3、pip、虚拟环境以及Scrapy爬虫框架。涵盖了必要的依赖库安装，如libssl-dev、libffi-dev、lxml等，并指导如何创建Python3虚拟环境，最后在虚拟环境中安装Scrapy。

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This should get you covered (tested with Ubuntu 16.04):

sudo apt-get update -y

# install python3 and dev headers
sudo apt-get install -y python3 python3-dev

# pip is great
sudo apt-get install -y python-pip

# for cryptography (required by twisted[tls])
sudo apt-get install -y libssl-dev libffi-dev

# for lxml
sudo apt-get install -y libxml2-dev libxslt1-dev

sudo pip install virtualenvwrapper
source /usr/local/bin/virtualenvwrapper.sh

# create a Python3 virtualenv
mkvirtualenv -p python3 scrapy.py3

# and install scrapy inside it
(scrapy.py3) ~$ pip install scrapy

Check that you're using Python3:

(scrapy.py3) ~$  scrapy version -v
Scrapy    : 1.1.0
lxml      : 3.6.0.0
libxml2   : 2.9.3
Twisted   : 16.3.0
Python    : 3.5.1+ (default, Mar 30 2016, 22:46:26) - [GCC 5.3.1 20160330]
pyOpenSSL : 16.0.0 (OpenSSL 1.0.2g-fips  1 Mar 2016)
Platform  : Linux-4.4.0-28-generic-x86_64-with-Ubuntu-16.04-xenial