python3安裝前，最好先安裝下依賴包：
yum install -y openssl-devel
yum install -y openssl
yum install -y zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel
$ yum install gcc -y
$ yum install zlib zlib-devel -y
$ wget https://www.python.org/ftp/python/3.6.2/Python-3.6.2rc1.tgz
$ tar zxvf Python-3.6.2rc1.tgz
$ cd Python-3.6.2rc1/
把Python3.6安裝到 /usr/local 目錄
$ ./configure --prefix=/usr/local
$ make
$ make install
最后提示：Successfully installed pip-9.0.1 setuptools-28.8.0
$ ln -s /usr/local/bin/python3.6 /usr/bin/python3
$ ln -s /usr/local/bin/python3.6 /usr/bin/python #最好不要把原本的舊版python覆蓋掉。
在使用pip3.6安裝模塊的時候出現如下錯誤。
[root@zabbix Python-3.6.2rc1]# pip install ansible
pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available.
Collecting ansible
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/ansible/
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/ansible/
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/ansible/
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/ansible/
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/ansible/
Could not fetch URL https://pypi.org/simple/ansible/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.org', port=443): Max retries exceeded with url: /simple/ansible/ (Caused by SSLError("Can't connect to HTTPS URL because the SSL module is not available.",)) - skipping
Could not find a version that satisfies the requirement ansible (from versions: )
No matching distribution found for ansible
pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available.
Could not fetch URL https://pypi.org/simple/pip/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.org', 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
[root@zabbix Python-3.6.2rc1]#
從錯誤提示來看是缺少了ssl模塊，centos下的解決方案...
yum install openssl yum install openssl-devel -y
如果還是不行：
1.安裝ssl sudo apt-get install openssl sudo apt-get install libssl-dev 2. 修改Moudles/Setup (該目錄在python的解壓目錄下) vim Modules/Setup #修改結果如下： # Socket module helper for socket(2) _socket socketmodule.c timemodule.c # Socket module helper for SSL support; you must comment out the other # socket line above, and possibly edit the SSL variable: #SSL=/usr/local/ssl _ssl _ssl.c \ -DUSE_SSL -I$(SSL)/include -I$(SSL)/include/openssl \ -L$(SSL)/lib -lssl -lcrypto 3.重新安裝一次 ./configure --prefix=/usr/local/python make make install 4.測試是否SSL可用
python3
>>> import ssl
python3安裝后一般會自帶pip3，如果沒有，就自己安裝：
去https://pypi.org/project/pip/下載最新版的pip-10.0.1.tar.gz
解壓tar -xf pip-10.0.1.tar.gz
進入文件夾運行：
python setup.py install
如果實在還是有問題，就重新安裝python3.6