package/python-pip: needs hashlib module

package/python-pip: needs hashlib module

Without hashlib module pip returns the following errors:

# pip
ValueError: unsupported hash type sha224
ERROR:root:code for hash sha256 was not found.
Traceback (most recent call last):
  File "/usr/lib/python2.7/hashlib.py", line 147, in <module>
  File "/usr/lib/python2.7/hashlib.py", line 97, in __get_builtin_constructor
ValueError: unsupported hash type sha256
ERROR:root:code for hash sha384 was not found.
Traceback (most recent call last):
  File "/usr/lib/python2.7/hashlib.py", line 147, in <module>
  File "/usr/lib/python2.7/hashlib.py", line 97, in __get_builtin_constructor
ValueError: unsupported hash type sha384
ERROR:root:code for hash sha512 was not found.
Traceback (most recent call last):
  File "/usr/lib/python2.7/hashlib.py", line 147, in <module>
  File "/usr/lib/python2.7/hashlib.py", line 97, in __get_builtin_constructor
ValueError: unsupported hash type sha512
Traceback (most recent call last):
  File "/usr/bin/pip", line 11, in <module>
    load_entry_point('pip==20.0.2', 'console_scripts', 'pip')()
  File "/usr/lib/python2.7/site-packages/pip/_internal/cli/main.py", line 73, in main
  File "/usr/lib/python2.7/site-packages/pip/_internal/commands/__init__.py", line 96, in create_command
  File "/usr/lib/python2.7/importlib/__init__.py", line 37, in import_module
  File "/usr/lib/python2.7/site-packages/pip/_internal/commands/install.py", line 24, in <module>
  File "/usr/lib/python2.7/site-packages/pip/_internal/cli/req_command.py", line 15, in <module>
  File "/usr/lib/python2.7/site-packages/pip/_internal/index/package_finder.py", line 21, in <module>
  File "/usr/lib/python2.7/site-packages/pip/_internal/index/collector.py", line 12, in <module>
  File "/usr/lib/python2.7/site-packages/pip/_vendor/requests/__init__.py", line 43, in <module>
  File "/usr/lib/python2.7/site-packages/pip/_vendor/urllib3/__init__.py", line 7, in <module>
  File "/usr/lib/python2.7/site-packages/pip/_vendor/urllib3/connectionpool.py", line 29, in <module>
  File "/usr/lib/python2.7/site-packages/pip/_vendor/urllib3/connection.py", line 40, in <module>
  File "/usr/lib/python2.7/site-packages/pip/_vendor/urllib3/util/__init__.py", line 7, in <module>
  File "/usr/lib/python2.7/site-packages/pip/_vendor/urllib3/util/ssl_.py", line 8, in <module>
ImportError: cannot import name md5

Signed-off-by: Bartosz Bilas <b.bilas@grinn-global.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>