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为什么我无法为本地 Python 2.7.12 安装安装 pip？

tag-icon • tag-icon apt package-management python ssl
为什么我无法为本地 Python 2.7.12 安装安装 pip？

在 VMWare 虚拟机上使用 Ubuntu 18.04 LTS。

我正在尝试设置本地 python 2.7.12 环境，make以便为正在开发的应用程序创建虚拟环境。但是，由于某种原因，当我pip通过 pythonensurepip命令进行安装时，遇到了错误：Ignoring ensurepip failure: pip 8.1.1 requires SSL/TLS

以下是我在终端中采取的步骤：

# Install necessary packages
#
sudo apt-get update

sudo apt-get install curl make g++ \
                     zip zlibc zlib1g zlib1g-dev \
                     bzip2 libbz2-dev \
                     libncurses5-dev libreadline6-dev ncurses-doc \
                     libssl-dev \
                     uuid-dev \
                     sqlite3 libsqlite3-dev \
                     libapr1 libapr1-dev libaprutil1 libaprutil1-dev \
                     libxml2-dev libxslt1-dev \
                     haproxy

# Configure environment
#
WW_PREFIX=~/company/application
export WW_PREFIX

# Update PATH (.profile)
#
PATH="${WW_PREFIX}/bin:${PATH}"
export PATH

# Python
#
curl -O "https://www.python.org/ftp/python/2.7.12/Python-2.7.12.tgz"
tar xvfz Python-2.7.12.tgz
cd Python-2.7.12
./configure "--prefix=${WW_PREFIX}" --with-threads --with-ssl --with-zlib
sudo make
sudo make install
cd ..
rm -rf Python-2.7.12
rm Python-2.7.12.tgz

# Test that it works
#
"${WW_PREFIX}/bin/python" -V

下一步是调用这个：

sudo -H "${WW_PREFIX}/bin/python" -m ensurepip
sudo -H "${WW_PREFIX}/bin/pip" install --upgrade pip

但是当我到达该ensurepip行时，我得到了错误

ERROR:root:code for hash md5 was not found.
Traceback (most recent call last):
  File "/home/user/webworks/clouddrafts/lib/python2.7/hashlib.py", line 147, in <module>
    globals()[__func_name] = __get_hash(__func_name)
  File "/home/user/webworks/clouddrafts/lib/python2.7/hashlib.py", line 97, in __get_builtin_constructor
    raise ValueError('unsupported hash type ' + name)
ValueError: unsupported hash type md5
ERROR:root:code for hash sha1 was not found.
Traceback (most recent call last):
  File "/home/user/webworks/clouddrafts/lib/python2.7/hashlib.py", line 147, in <module>
    globals()[__func_name] = __get_hash(__func_name)
  File "/home/user/webworks/clouddrafts/lib/python2.7/hashlib.py", line 97, in __get_builtin_constructor
    raise ValueError('unsupported hash type ' + name)
ValueError: unsupported hash type sha1
ERROR:root:code for hash sha224 was not found.
Traceback (most recent call last):
  File "/home/user/webworks/clouddrafts/lib/python2.7/hashlib.py", line 147, in <module>
    globals()[__func_name] = __get_hash(__func_name)
  File "/home/user/webworks/clouddrafts/lib/python2.7/hashlib.py", line 97, in __get_builtin_constructor
    raise ValueError('unsupported hash type ' + name)
ValueError: unsupported hash type sha224
ERROR:root:code for hash sha256 was not found.
Traceback (most recent call last):
  File "/home/user/webworks/clouddrafts/lib/python2.7/hashlib.py", line 147, in <module>
    globals()[__func_name] = __get_hash(__func_name)
  File "/home/user/webworks/clouddrafts/lib/python2.7/hashlib.py", line 97, in __get_builtin_constructor
    raise ValueError('unsupported hash type ' + name)
ValueError: unsupported hash type sha256
ERROR:root:code for hash sha384 was not found.
Traceback (most recent call last):
  File "/home/user/webworks/clouddrafts/lib/python2.7/hashlib.py", line 147, in <module>
    globals()[__func_name] = __get_hash(__func_name)
  File "/home/user/webworks/clouddrafts/lib/python2.7/hashlib.py", line 97, in __get_builtin_constructor
    raise ValueError('unsupported hash type ' + name)
ValueError: unsupported hash type sha384
ERROR:root:code for hash sha512 was not found.
Traceback (most recent call last):
  File "/home/user/webworks/clouddrafts/lib/python2.7/hashlib.py", line 147, in <module>
    globals()[__func_name] = __get_hash(__func_name)
  File "/home/user/webworks/clouddrafts/lib/python2.7/hashlib.py", line 97, in __get_builtin_constructor
    raise ValueError('unsupported hash type ' + name)
ValueError: unsupported hash type sha512
Ignoring ensurepip failure: pip 8.1.1 requires SSL/TLS

我到处都尝试解决这个问题。许多其他解决方案都建议libssl-dev需要安装才能解决此特定错误，但我已经安装了它，如我的apt-get列表中所示。我也尝试过该get-pip.py方法，但失败了。我想说的是，对于这些尝试，都找不到 SSL 库，但我不知道我做错了什么。

答案1

为了解决这个问题，我需要正确安装openssl-dev。对于 Ubuntu 18.04 和我的情况，通过安装libssl1.0-dev而不是解决了这个问题libssl-dev。

sudo apt-get install libssl1.0-dev

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