[MAINT] Move long description logic from info.py to setup.py (#670)

* Try python doc's approach

* Use existing variable for root_dir instead of defining new one

* Remove unused __longdesc__

* Fix over-indent

* Remove unused path

setup.py

@@ -18,7 +18,6 @@ def main():
         __maintainer__,
         __license__,
         __description__,
-        __longdesc__,
         __url__,
         DOWNLOAD_URL,
         CLASSIFIERS,
@@ -38,6 +37,9 @@ def main():
 
     root_dir = op.dirname(op.abspath(getfile(currentframe())))
 
+    with open(op.join(root_dir, 'README.md'), encoding='utf-8') as f:
+        long_description = f.read()
+
     version = None
     cmdclass = {}
     if op.isfile(op.join(root_dir, 'tedana', 'VERSION')):
@@ -53,7 +55,7 @@ def main():
         name=__packagename__,
         version=__version__,
         description=__description__,
-        long_description=__longdesc__,
+        long_description=long_description,
         author=__author__,
         author_email=__email__,
         maintainer=__maintainer__,

tedana/__init__.py

@@ -19,7 +19,6 @@
     __url__,
     __packagename__,
     __description__,
-    __longdesc__
 )
 
 import warnings

tedana/info.py

@@ -4,8 +4,6 @@
 """
 Base module variables
 """
-from pathlib import Path
-readme_path = Path(__file__).parent.parent.joinpath("README.md")
 
 from ._version import get_versions
 __version__ = get_versions()['version']
@@ -23,7 +21,6 @@
 __packagename__ = 'tedana'
 __description__ = ('TE-Dependent Analysis (tedana) of multi-echo functional '
                    'magnetic resonance imaging (fMRI) data.')
-__longdesc__ = readme_path.open().read()
 
 DOWNLOAD_URL = (
     'https://github.com/ME-ICA/{name}/archive/{ver}.tar.gz'.format(