centos7 安装 python3
2021/11/4 7:09:42
本文主要是介绍centos7 安装 python3,对大家解决编程问题具有一定的参考价值,需要的程序猿们随着小编来一起学习吧!
起因
为了试试 bpytop 进行了如下折腾 (所有操作均在虚拟机内完成)
先上成果图
PS: 确实 酷!:)
安装 python3
1.下载安装包
wget https://www.python.org/ftp/python/3.7.0/Python-3.7.0.tar.xz or wget https://www.python.org/ftp/python/3.7.0/Python-3.7.0.tar.xz --no-check-certificate
2.解压
tar -xvJf Python-3.7.0.tar.xz
3.编译安装
mkdir /usr/local/python3 #创建编译安装目录 cd Python-3.7.0 ./configure --prefix=/usr/local/python3 # ./configure --prefix=/usr/local/python3 --with-ssl make && make install
编译过程遇到的报错&解决办法
zipimport.ZipImportError: can't decompress data; zlib not available
ModuleNotFoundError: No module named '_ctypes'
4.创建软连接
ln -s /usr/local/python3/bin/python3 /usr/local/bin/python3 ln -s /usr/local/python3/bin/pip3 /usr/local/bin/pip3
5.验证
python3 -V pip3 -V
参考:
https://www.cnblogs.com/anxminise/p/9650206.html
https://blog.csdn.net/blueheart20/article/details/72827666
https://blog.csdn.net/qq_42353939/article/details/94609591
后续:
pip3 无法正常使用,报错如下:
pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available.
[root@controller upload]# pip3 install --upgrade pip pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available. Looking in indexes: https://pypi.tuna.tsinghua.edu.cn/simple Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError("Can't connect to HTTPS URL because the SSL module is not available.")': /simple/pip/ Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError("Can't connect to HTTPS URL because the SSL module is not available.")': /simple/pip/ Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError("Can't connect to HTTPS URL because the SSL module is not available.")': /simple/pip/ Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError("Can't connect to HTTPS URL because the SSL module is not available.")': /simple/pip/ Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError("Can't connect to HTTPS URL because the SSL module is not available.")': /simple/pip/ Could not fetch URL https://pypi.tuna.tsinghua.edu.cn/simple/pip/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.tuna.tsinghua.edu.cn', port=443): Max retries exceeded with url: /simple/pip/ (Caused by SSLError("Can't connect to HTTPS URL because the SSL module is not available.")) - skipping Requirement already up-to-date: pip in /usr/local/python3/lib/python3.7/site-packages (10.0.1) You are using pip version 10.0.1, however version 21.3.1 is available. You should consider upgrading via the 'pip install --upgrade pip' command.
# 下载 openssl wget https://files-cdn.cnblogs.com/files/luckjinyan/openssl-1.1.1g.tar.gz tar -zxvf openssl-1.1.1g.tar.gz cd openssl-1.1.1g/ # 编译安装 ./config --prefix=/usr/local/openssl make && make install # 备份&替换旧的 openssl mv /usr/bin/openssl /usr/bin/openssl.old mv /usr/lib64/openssl /usr/lib64/openssl.old mv /usr/lib64/libssl.so /usr/lib64/libssl.so.old ln -s /usr/local/openssl/bin/openssl /usr/bin/openssl ln -s /usr/local/openssl/include/openssl /usr/include/openssl ln -s /usr/local/openssl/lib/libssl.so /usr/lib64/libssl.so echo "/usr/local/openssl/lib" >> /etc/ld.so.conf ldconfig -v // 建立动态链接 # 验证 openssl version # 重新编译 python3 cd Python-3.7.0 ./configure --prefix=/usr/local/python3 --with-openssl=/usr/local/openssl make && make install
升级pip3并完成 bpytop 的安装
[root@controller upload]# pip3 install --upgrade pip Looking in indexes: https://pypi.tuna.tsinghua.edu.cn/simple Collecting pip Downloading https://pypi.tuna.tsinghua.edu.cn/packages/a4/6d/6463d49a933f547439d6b5b98b46af8742cc03ae83543e4d7688c2420f8b/pip-21.3.1-py3-none-any.whl (1.7MB) 100% |████████████████████████████████| 1.7MB 538kB/s Installing collected packages: pip Found existing installation: pip 10.0.1 Uninstalling pip-10.0.1: Successfully uninstalled pip-10.0.1 Successfully installed pip-21.3.1 [root@controller upload]# pip3 install psutil-5.8.0-cp37-cp37m-manylinux2010_x86_64.whl Looking in indexes: https://pypi.tuna.tsinghua.edu.cn/simple Processing ./psutil-5.8.0-cp37-cp37m-manylinux2010_x86_64.whl Installing collected packages: psutil Successfully installed psutil-5.8.0 WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager. It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv [root@controller upload]# pip3 install bpytop-1.0.67-py3-none-any.whl Looking in indexes: https://pypi.tuna.tsinghua.edu.cn/simple Processing ./bpytop-1.0.67-py3-none-any.whl Requirement already satisfied: psutil<6.0.0,>=5.7.0 in /usr/local/python3/lib/python3.7/site-packages (from bpytop==1.0.67) (5.8.0) Installing collected packages: bpytop Successfully installed bpytop-1.0.67 WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager. It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv [root@controller upload]#
参考:
https://www.jianshu.com/p/8e476eef43f7
https://www.cnblogs.com/luckjinyan/p/13124422.html
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