Tornado: pip install tornado not working properly

[jvanlangen]

Just started with this an ran into issues:

With these lines while executing pip install tornado

"Failed building wheel for tornado"

"Failed building wheel for backports.ssl-match-hostname"

What does this mean???

* complete logging *

NAS> pip install tornado
Collecting tornado
Downloading tornado-4.3.tar.gz (450kB)
100% |████████████████████████████████| 454kB 175kB/s
Collecting backports.ssl-match-hostname (from tornado)
Downloading backports.ssl_match_hostname-3.4.0.2.tar.gz
Collecting singledispatch (from tornado)
Downloading singledispatch-3.4.0.3-py2.py3-none-any.whl
Collecting certifi (from tornado)
Downloading certifi-2015.11.20.1-py2.py3-none-any.whl (368kB)
100% |████████████████████████████████| 372kB 207kB/s
Collecting backports-abc>=0.4 (from tornado)
Downloading backports_abc-0.4-py2.py3-none-any.whl
Requirement already satisfied (use --upgrade to upgrade): six in /usr/local/lib/python2.7/site-packages (from singledispatch->tornado)
Building wheels for collected packages: tornado, backports.ssl-match-hostname
Running setup.py bdist_wheel for tornado
Complete output from command /usr/bin/python -c "import setuptools;file='/tmp/pip-build-jK5tDf/tornado/setup.py';exec(compile(open(file).read().replace('\r\n', '\n'), file, 'exec'))" bdist_wheel -d /tmp/tmpSCFKl3pip-wheel-:
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 tornado
Running setup.py bdist_wheel for backports.ssl-match-hostname
Complete output from command /usr/bin/python -c "import setuptools;file='/tmp/pip-build-jK5tDf/backports.ssl-match-hostname/setup.py';exec(compile(open(file).read().replace('\r\n', '\n'), file, 'exec'))" bdist_wheel -d /tmp/tmp7MZvUzpip-wheel-:
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 backports.ssl-match-hostname
Failed to build tornado backports.ssl-match-hostname
Installing collected packages: backports.ssl-match-hostname, singledispatch, certifi, backports-abc, tornado
Running setup.py install for backports.ssl-match-hostname
Running setup.py install for tornado
Successfully installed backports-abc-0.4 backports.ssl-match-hostname-3.4.0.2 certifi-2015.11.20.1 singledispatch-3.4.0.3 tornado-4.3
NAS>

[hellysmile]

pip install -U wheel
pip install tornado

[bdarnell]

"Failed building wheel" is a non-fatal error. Pip will retry without using wheels, and succeeded: "Successfully installed backports-abc-0.4... tornado-4.3". Running pip install -U wheel will fix this as @hellysmile points out, and I think upgrading to the latest version of pip will work as well.

[CesMak]

For me nothing helps I still get this error:

 pip install --upgrade tornado --user
Collecting tornado
  Using cached https://files.pythonhosted.org/packages/cf/d1/3be271ae5eba9fb59df63c9891fdc7d8044b999e8ac145994cdbfd2ae66a/tornado-5.0.2.tar.gz
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/usr/lib/python2.7/dist-packages/setuptools/__init__.py", line 12, in <module>
        from setuptools.extension import Extension
      File "/usr/lib/python2.7/dist-packages/setuptools/extension.py", line 7, in <module>
        from setuptools.dist import _get_unpatched
      File "/usr/lib/python2.7/dist-packages/setuptools/dist.py", line 16, in <module>
        import pkg_resources
      File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 1479, in <module>
        register_loader_type(importlib_bootstrap.SourceFileLoader, DefaultProvider)
    AttributeError: module 'importlib._bootstrap' has no attribute 'SourceFileLoader'

    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-install-klb0mk83/tornado/

[bdarnell]

That's a different error than the one that started this issue. Please create a new issue instead of commenting on a (different) closed one.

This error is all in setuptools and importlib, so I don't see anything tornado-specific here. I won't be able to help you with it.