pip returns error when installing

[Ken'ichi Ogawa]

I faced this error when installing py3dns by pip3.6

# Conclusion

I see the source code [DNS/Base.py](https://github.com/ados1991/py3dns/blob/master/DNS/Base.py#L9), I think you need to add `# -*- coding: utf-8 -*-` at top of the file because you use non-ascii character at line 9 `©`.
ref: https://stackoverflow.com/questions/18078851/syntaxerror-of-non-ascii-character

Please check and fix if it is true.

# Log

[ec2-user@blah ~]$ sudo -H pip install py3dns
Collecting py3dns
  Using cached https://files.pythonhosted.org/packages/87/0d/35d3d710ec6ca04d5e5f8b344c6604fc9590629918346801cc5e7425cc4a/py3dns-3.1.0.tar.gz
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/tmp/pip-build-rVU2G_/py3dns/setup.py", line 7, in <module>
        import DNS
      File "/tmp/pip-build-rVU2G_/py3dns/DNS/__init__.py", line 27, in <module>
        from .Base import DnsRequest
      File "/tmp/pip-build-rVU2G_/py3dns/DNS/Base.py", line 9
    SyntaxError: Non-ASCII character '\xc2' in file /tmp/pip-build-rVU2G_/py3dns/DNS/Base.py on line 10, but no encoding declared; see http://python.org/dev/peps/pep-0263/ for details

    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-rVU2G_/py3dns/

# Environment

Server: Amazon Linux 2018.03
Python: 3.6
Py3DNS: 3.1.0

[Scott Kitterman (kitterman)]

I am unable to reproduce this. For python3, UTF-8 is the default, so non-ascii coding does not need to be declared. Are you sure you were using a python3 version of pip?

# pip3 install py3dns
Collecting py3dns
  Using cached https://files.pythonhosted.org/packages/87/0d/35d3d710ec6ca04d5e5f8b344c6604fc9590629918346801cc5e7425cc4a/py3dns-3.1.0.tar.gz
Building wheels for collected packages: py3dns
  Running setup.py bdist_wheel for py3dns ... error
  Complete output from command /usr/bin/python3 -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-er3m_6cv/py3dns/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" bdist_wheel -d /tmp/tmphz3a_d65pip-wheel- --python-tag cp36:
  usage: -c [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
     or: -c --help [cmd1 cmd2 ...]
     or: -c --help-commands
     or: -c cmd --help

  error: invalid command 'bdist_wheel'

  ----------------------------------------
  Failed building wheel for py3dns
  Running setup.py clean for py3dns
Failed to build py3dns
Installing collected packages: py3dns
  Running setup.py install for py3dns ... done
Successfully installed py3dns-3.1.0
root@kitterma-E6430:/home# python3
Python 3.6.6 (default, Jun 27 2018, 14:44:17)
[GCC 8.1.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import DNS
>>>

Note that the bdist_wheel error doesn't actually stop it from working. As far as I can tell, this works fine.

[Scott Kitterman (kitterman)]

I've confirmed that's not needed for Python3, so it's almost certain setup.py was run with python2 or with a non-standard python3 configuration. Closing as invalid since you can't install python3 modules with python2 and without a method to reproduce, there's nothing to be done.