我将Python 2.7.13作为备用安装版本，通过在我的RHEL4机器上安装源代码来实现
wget --no-check-certificate https://www.python.org/ftp/python/2.7.13/Python-2.7.13.tar.xz
tar -xvzf Python2.7.13.tar.xz
cd Python2.7.13
./configure --with-ensurepip=install
make
make test
make altinstall
为了不覆盖其他用途所需的默认Python，我需要进行翻译。Python 2.7.13 可以成功安装，但是缺少项目所需的几个必要模块。 最初，在此部分中 _ssl 和 _haslib 模块将出现错误。
Python build finished, but the necessary bits to build these modules were not found:
_bsddb _sqlite3 _tkinter
bsddb185 dbm dl
gdbm imageop sunaudiodev
To find the necessary bits, look in setup.py in detect_modules() for the module's name.
我安装了openssl并确保它们在Python默认查找位置上，所以现在我有了必要的部件，但是最后出现了以下消息：
Failed to build these modules:
_hashlib _ssl
以下是未压缩的Python软件包中
python2.7 setup.py build 的完整输出。我已经在谷歌和其他地方搜索过，但到目前为止都没有找到任何有用的信息。running build
running build_ext
INFO: Can't locate Tcl/Tk libs and/or headers
building '_ssl' extension
gcc -pthread -fno-strict-aliasing -g -O2 -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -fPIC -I/usr/local/ssl/include -I. -IInclude -I./Include -I/usr/local/include -I/usr/local/include/python2.7 -c /Python/Modules/_ssl.c -o build/temp.linux-x86_64-2.7/Python/Modules/_ssl.o
/Python/Modules/_ssl.c:57: warning: ignoring #pragma GCC diagnostic
/Python/Modules/_ssl.c: In function ‘_setup_ssl_threads’:
/Python/Modules/_ssl.c:4012: warning: comparison is always false due to limited range of data type
gcc -pthread -shared build/temp.linux-x86_64-2.7/Python/Modules/_ssl.o -L/usr/local/ssl/lib -L/usr/local/lib -lssl -lcrypto -o build/lib.linux-x86_64-2.7/_ssl.so
/usr/bin/ld: /usr/local/ssl/lib/libssl.a(s3_meth.o): relocation R_X86_64_32 against `a local symbol' can not be used when making a shared object; recompile with -fPIC
/usr/local/ssl/lib/libssl.a: could not read symbols: Bad value
collect2: ld returned 1 exit status
building '_hashlib' extension
gcc -pthread -fno-strict-aliasing -g -O2 -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -fPIC -I/usr/local/ssl/include -I. -IInclude -I./Include -I/usr/local/include -I/usr/local/include/python2.7 -c /Python/Modules/_hashopenssl.c -o build/temp.linux-x86_64-2.7/Python/Modules/_hashopenssl.o
gcc -pthread -shared build/temp.linux-x86_64-2.7/Python/Modules/_hashopenssl.o -L/usr/local/ssl/lib -L/usr/local/lib -lssl -lcrypto -o build/lib.linux-x86_64-2.7/_hashlib.so
/usr/bin/ld: /usr/local/ssl/lib/libcrypto.a(o_names.o): relocation R_X86_64_32 against `a local symbol' can not be used when making a shared object; recompile with -fPIC
/usr/local/ssl/lib/libcrypto.a: could not read symbols: Bad value
collect2: ld returned 1 exit status
Python build finished, but the necessary bits to build these modules were not found:
_bsddb _sqlite3 _tkinter
bsddb185 dbm dl
gdbm imageop sunaudiodev
To find the necessary bits, look in setup.py in detect_modules() for the module's name.
Failed to build these modules:
_hashlib _ssl
running build_scripts
当我尝试使用安装在我的Python 2.7.13中的pip时，出现了SSL错误，因此我一直从源代码安装所有软件包和其他模块，如cx_Oracle和CherryPy。
pip2.7 install cffi
pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available.
Collecting cffi
Could not fetch URL https://pypi.python.org/simple/cffi/: There was a problem confirming the ssl certificate: Can't connect to HTTPS URL because the SSL module is not available. - skipping
Could not find a version that satisfies the requirement cffi (from versions: )
No matching distribution found for cffi
我也尝试使用手动方式添加ssl模块：
wget --no-check-certificate https://pypi.python.org/packages/83/21/f469c9923235f8c36d5fd5334ed11e2681abad7e0032c5aba964dcaf9bbb/ssl-1.16.tar.gz#md5=fb12d335d56f3c8c7c1fefc1c06c4bfb
tar -xvzf ssl-1.16.tar.gz
cd ssl-1.16
python2.7 setup.py build
但是我遇到了一个错误，它不能在Python 2.6之后的版本中使用
Traceback (most recent call last):
File "setup.py", line 12, in <module>
+ "or earlier.")
ValueError: This extension should not be used with Python 2.6 or later (already built in), and has not been tested with Python 2.3.4 or earlier.
编辑
我正在寻找解决方案，经过检查setup.py build的输出后，发现有人遇到了类似的问题，似乎与openssl相关，链接在这里。因此，我重新构建了我的openssl。
./config enable-shared
make
make test
make install
现在我遇到了一个稍微不同的关于ssl模块的错误，我是不是越来越搞砸我的环境了？
python2.7 setup.py build
running build
running build_ext
INFO: Can't locate Tcl/Tk libs and/or headers
building '_ssl' extension
gcc -pthread -fno-strict-aliasing -g -O2 -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -fPIC -I/usr/local/ssl/include -I. -IInclude -I./Include -I/usr/local/include -I/usr/local/include/python2.7 -c /Python/Modules/_ssl.c -o build/temp.linux-x86_64-2.7/Python/Modules/_ssl.o
/Python/Modules/_ssl.c:57: warning: ignoring #pragma GCC diagnostic
/Python/Modules/_ssl.c: In function ‘_setup_ssl_threads’:
/Python/Modules/_ssl.c:4012: warning: comparison is always false due to limited range of data type
gcc -pthread -shared build/temp.linux-x86_64-2.7/Python/Modules/_ssl.o -L/usr/local/ssl/lib -L/usr/local/lib -lssl -lcrypto -o build/lib.linux-x86_64-2.7/_ssl.so
*** WARNING: renaming "_ssl" since importing it failed: libssl.so.1.0.0: cannot open shared object file: No such file or directory
building '_hashlib' extension
gcc -pthread -fno-strict-aliasing -g -O2 -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -fPIC -I/usr/local/ssl/include -I. -IInclude -I./Include -I/usr/local/include -I/usr/local/include/python2.7 -c /Python/Modules/_hashopenssl.c -o build/temp.linux-x86_64-2.7/Python/Modules/_hashopenssl.o
gcc -pthread -shared build/temp.linux-x86_64-2.7/Python/Modules/_hashopenssl.o -L/usr/local/ssl/lib -L/usr/local/lib -lssl -lcrypto -o build/lib.linux-x86_64-2.7/_hashlib.so
*** WARNING: renaming "_hashlib" since importing it failed: libssl.so.1.0.0: cannot open shared object file: No such file or directory
Python build finished, but the necessary bits to build these modules were not found:
_bsddb _sqlite3 _tkinter
bsddb185 dbm dl
gdbm imageop sunaudiodev
To find the necessary bits, look in setup.py in detect_modules() for the module's name.
Failed to build these modules:
_hashlib _ssl
running build_scripts
输出中的新警告信息：***警告：由于导入失败，重命名“_ssl”：libssl.so.1.0.0：无法打开共享对象文件：没有那个文件或目录表示该文件不存在，但我在 /usr/local/ssl/lib/ 中看到了它作为 libssl.so.1.0.0 并且可以通过搜索找到。
find / -name libssl.so.1.0.0
/usr/local/ssl/lib/libssl.so.1.0.0
/tmp/openssl-1.0.2l/libssl.so.1.0.0