注：本博文主要為轉(zhuǎn)載后根據(jù)本人情況再加工

1 問(wèn)題：

python3.7.2安裝遇到如下ssl問(wèn)題

>>> import ssl

Traceback (most recent call last):

File "", line 1, in

File "/usr/local/lib/python3.7/ssl.py", line 98, in

import _ssl # if we can't import it, let the error propagate

ModuleNotFoundError: No module named '_ssl'

2 解決辦法

2.1安裝依賴(lài)

yum groupinstall development

2.2 安裝libressl代替openssl-devel

2.2.1 原因

由于系統(tǒng)的openssl是1.0.1的版本,，對(duì)于python3.7太老了,，需要更新為openssl1.0.2或者libressl2.64(不含)以后的版本,，所以這里從libressl官網(wǎng)下載libressl源碼,，編譯生成庫(kù)文件代替系統(tǒng)的openssl1.0.1

2.2.2 安裝libressl

下載libressl-2.8.0

./config –prefix=/usr/local/libressl

make

make intall

mv /usr/bin/openssl /usr/bin/openssl.bak

mv /usr/include/openssl /usr/include/openssl.bak

ln -s /usr/local/libressl/bin/openssl /usr/bin/openssl

ln -s /usr/local/libressl/include/openssl /usr/include/openssl

2.2.3 加載lib

cd /etc/ld.so.conf.d

新建文件

vim libressl-2.8.0.conf

#將以下行加入文件,，并保存

/usr/local/libressl/lib

ldconfig -v #重新加載庫(kù)文件

2.3安裝python3.7

從官網(wǎng)下載python3.7的源碼，

解壓后進(jìn)入Python-3.7.0

編譯前需要設(shè)置環(huán)境變量(重要)

export LDFLAGS="-L/usr/local/libressl/lib"

export CPPFLAGS="-I/usr/local/libressl/include"

export PKG_CONFIG_PATH="/usr/local/libressl/lib/pkgconfig"

./configure –prefix=/usr/local/python3 –enable-shared CFLAGS=-fPIC

運(yùn)行后會(huì)出現(xiàn)一堆信息：

注意最后的ssl檢查,，如下圖所示：

2.4 處理異常

運(yùn)行python3.7命令遇到：libpython3.7m.so.1.0: cannot open shared object file: No such file or d

echo /usr/local/python3.7/lib > /etc/ld.so.conf.d/python3.7.conf

ldconfig -v

2.4 驗(yàn)證

linux下gunicorn+flask項(xiàng)目的部署