title: Python Setup.py giving ModuleNotFoundError
body: <p>I have been trying to use this library: latbin
  (<a href="https://pypi.python.org/pypi/latbin" rel="nofollow noreferrer">https://pypi.python.org/pypi/latbin</a>)</p>
  
  <p>pip didn't work
  Then downloaded the files and used : python setup.py install
  Changed current directory in that folder (windows)</p>
  
  <pre><code>  C:\...\latbin-0.1.4.tar\dist\latbin&gt;python setup.py install
  Traceback (most recent call last):
    File "setup.py", line 5, in &lt;module&gt;
      import latbin
  ModuleNotFoundError: No module named 'latbin'
  </code></pre>
  
  <p>directory structure using the same as downloaded.</p>
  
  <p>Btw, this is the setup.py code:</p>
  
  <pre><code>import os
  os.chdir("C:/.../latbin-0.1.4.tar/dist/latbin/")
  from distutils.core import setup
  #from setuptools import setup, find_packages
  import latbin
  
  packages = ['latbin']
  install_requires = ['numpy&gt;=1.8','scipy&gt;=0.14','pandas&gt;=0.14']
  ext_modules = []
  
  setup(
      name='latbin',
      author="Tim Anderton, Dylan Gregersen",
      author_email='&lt;quidditymaster@gmail.com&gt;;&lt;dylan.gregersen@utah.edu&gt;',
      url="https://github.com/astrodsg/latbin",
      license="3-clause BSD style license",
      description="Python lattice binning package for large data",
      long_description=open("README.rst").read(),
      classifiers=["Development Status :: 3 - Alpha",
                   "Intended Audience :: Developers",
                   "Intended Audience :: Science/Research",
                   "License :: OSI Approved :: BSD License",
                   "Natural Language :: English",
                   "Programming Language :: Python",
                   "Topic :: Scientific/Engineering :: Mathematics",
                   "Topic :: Scientific/Engineering :: Physics"],
      platforms='any',
      version=latbin.__version__,
      #packages=find_packages(),
      packages=packages,
      ext_modules=ext_modules,
      install_requires=install_requires,
      )
  </code></pre>