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我在 DigitalOcean 上有一个我正在研究的液滴:

它是 CentOS7 x64

我想安装 python v 3.5.3 并在我输入“python”时运行它

我将此页面用作参考:

https://www.digitalocean.com/community/tutorials/how-to-set-up-python-2-7-6-and-3-3-3-on-centos-6-4

我做了以下下载和编译python:

sudo yum group install "development tools"

作为本地用户 joe:

cd ~
wget https://www.python.org/ftp/python/3.5.3/Python-3.5.3.tgz
tar zxfv Python-3.5.3.tgz
find ~/python -type d | xargs chmod 0755
cd Python-3.5.3
./configure --prefix=/usr/local
make
sudo make altinstall

/usr/local/bin 看起来像这样:

-rwxr-xr-x 1 root root      101 Mar 26 21:20 /usr/local/bin/2to3-3.5
-rwxr-xr-x 1 root root      242 Mar 26 21:20 /usr/local/bin/easy_install-3.5
-rwxr-xr-x 1 root root       99 Mar 26 21:20 /usr/local/bin/idle3.5
-rwxr-xr-x 1 root root      214 Mar 26 21:20 /usr/local/bin/pip3.5
-rwxr-xr-x 1 root root       84 Mar 26 21:20 /usr/local/bin/pydoc3.5
-rwxr-xr-x 2 root root 12309712 Mar 26 21:19 /usr/local/bin/python3.5
-rwxr-xr-x 2 root root 12309712 Mar 26 21:19 /usr/local/bin/python3.5m
-rwxr-xr-x 1 root root     3080 Mar 26 21:20 /usr/local/bin/python3.5m-config
-rwxr-xr-x 1 root root      236 Mar 26 21:20 /usr/local/bin/pyvenv-3.5

没有“python”可执行文件只有“python3.5”唯一的“python”可执行文件位于

/home/joe/Python-3.5.3

-rwxrwxr-x  1 bucket bucket 12309712 Mar 26 21:16 python

它是相同的大小,所以它可能是同一个文件。我是否应该在 /usr/local/bin 中创建一个名为 python 指向 python3.5 的符号链接?我认为这是一种黑客行为,但我看不出我做错了什么。

另外,我不能调用 pip。

我试图安装它:

wget --no-check-certificate https://bootstrap.pypa.io/get-pip.py -O - | python3.5 - --user
--2017-03-26 21:47:19--  https://bootstrap.pypa.io/get-pip.py
Resolving bootstrap.pypa.io (bootstrap.pypa.io)... 151.101.0.175, 151.101.192.175, 151.101.64.175, ...
Connecting to bootstrap.pypa.io (bootstrap.pypa.io)|151.101.0.175|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 1595408 (1.5M) [text/x-python]
Saving to: ‘STDOUT’

100%[=======================================================================================================>] 1,595,408   --.-K/s   in 0.08s   

2017-03-26 21:47:19 (19.6 MB/s) - written to stdout [1595408/1595408]

Requirement already up-to-date: pip in /usr/local/lib/python3.5/site-packages
[bucket ~]$ pip
-bash: pip: command not found

谢谢。

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2 回答 2

0

python用 Python 3.5 二进制文件替换/覆盖二进制文件(我相信是 Python 2.7)不是一个好主意。这反过来意味着系统上的所有内容现在都将使用您的新解释器 - 并且可能会中断。事实上,Debian 认为“python”总是指 Python 2.7。

更新您的程序以使用python3.5二进制文件的更好且更安全的想法。

或者使用 virtualenv。

于 2017-03-26T22:56:25.033 回答
0

我要感谢 Penguin Brian 和 abccd 对 virtualenv 的建议。它允许我设置一个本地的“python”可执行文件。我安装了它并设置了一个可以工作的 virtualenv。

sudo yum groupinstall "Development tools"
sudo yum install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel

cd /usr/local/src
sudo wget https://www.python.org/ftp/python/3.5.3/Python-3.5.3.tar.xz --no-check-certificate
sudo tar xf Python-3.5.3.tar.xz
cd Python-3.5.3
sudo ./configure --prefix=/usr/local --enable-shared LDFLAGS="-Wl,-rpath /usr/local/lib"
sudo make
sudo make altinstall

sudo pip3.5 install virtualenv
sudo pip3.5 install virtualenvwrapper

作为本地用户:

mkdir ~/Envs

将以下行添加到 .bashrc

export WORKON_HOME=$HOME/Envs
export VIRTUALENVWRAPPER_PYTHON=/usr/local/bin/python3.5
source /usr/local/bin/virtualenvwrapper.sh

保存文件,然后:

source ~/.bashrc

mkvirtualenv <yourname>

当您重新登录以访问 virtualenv 时:

$workon <yourname>
(yourname)$ python --version
Python 3.5.3
于 2017-03-27T20:48:05.190 回答