Why is hashlib not installed for python3?

Question

Python

Please tell me why the hashlib library is not installed on python3.6? I am getting the following error message:

(venv) [email protected] ~/python/bottle_auth $ python3 -m pip install hashlib
Collecting hashlib
  Using cached https://files.pythonhosted.org/packages/74/bb/9003d081345e9f0451884146e9ea2cff6e4cc4deac9ffd4a9ee98b318a49/hashlib-20081119.zip
    ERROR: Complete output from command python setup.py egg_info:
    ERROR: Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/home/kalinin/python/bottle_auth/venv/lib/python3.6/site-packages/setuptools/__init__.py", line 18, in <module>
        import setuptools.version
      File "/home/kalinin/python/bottle_auth/venv/lib/python3.6/site-packages/setuptools/version.py", line 1, in <module>
        import pkg_resources
      File "/home/kalinin/python/bottle_auth/venv/lib/python3.6/site-packages/pkg_resources/__init__.py", line 35, in <module>
        import email.parser
      File "/usr/lib/python3.6/email/parser.py", line 12, in <module>
        from email.feedparser import FeedParser, BytesFeedParser
      File "/usr/lib/python3.6/email/feedparser.py", line 27, in <module>
        from email._policybase import compat32
      File "/usr/lib/python3.6/email/_policybase.py", line 9, in <module>
        from email.utils import _has_surrogates
      File "/usr/lib/python3.6/email/utils.py", line 28, in <module>
        import random
      File "/home/kalinin/python/bottle_auth/venv/lib/python3.6/random.py", line 46, in <module>
        from hashlib import sha512 as _sha512
      File "/tmp/pip-install-vuwlvg1f/hashlib/hashlib.py", line 80
        raise ValueError, "unsupported hash type"
                        ^
    SyntaxError: invalid syntax
    ----------------------------------------
ERROR: Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-install-vuwlvg1f/hashlib/

Answer 1

hashlib is the standard Python library since version 2.5 (if I'm not mistaken). The library you're trying to install was built for versions of Python below 2.5, so it's not surprising that python 3.6 has a syntax problem.