Replace __version__ import with reading the __init__.py file

See: https://packaging.python.org/guides/single-sourcing-package-version/
To avoid error when installing from source (`pip install -e .`)

setup.py

@@ -1,13 +1,29 @@
+import codecs
+import os.path
+
 from setuptools import setup, find_packages
 
-from medio import __version__
+
+def read(rel_path):
+ here = os.path.abspath(os.path.dirname(__file__))
+ with codecs.open(os.path.join(here, rel_path), 'r') as fp:
+ return fp.read()
+
+
+def get_version(rel_path):
+ for line in read(rel_path).splitlines():
+ if line.startswith('__version__'):
+ delim = '"' if '"' in line else "'"
+ return line.split(delim)[1]
+ else:
+ raise RuntimeError("Unable to find version string.")
+
 
 with open('README.md') as f:
  long_description = f.read()
 
-
 setup(name='medio',
- version=__version__,
+ version=get_version("medio/__init__.py"),
  description='Medical images I/O python package',
  long_description=long_description,
  long_description_content_type='text/markdown',
@@ -17,31 +33,31 @@
  keywords=['medical-images', 'IO', 'itk', 'nibabel', 'pydicom', 'python'],
  packages=find_packages(exclude=['*.tests']),
  install_requires=[
-  'itk >= 5.1.2',
-  'nibabel >= 3.2.1',
-  'pydicom >= 2.1.2',
-  'dicom-numpy >= 0.5.0',
-  'numpy >= 1.18.1'
+ 'itk >= 5.1.2',
+ 'nibabel >= 3.2.1',
+ 'pydicom >= 2.1.2',
+ 'dicom-numpy >= 0.5.0',
+ 'numpy >= 1.18.1',
  ],
  python_requires='>=3.6',
  classifiers=[
-  'Development Status :: 3 - Alpha',
+ 'Development Status :: 3 - Alpha',
 
-  'Intended Audience :: Developers',
-  'Intended Audience :: Education',
-  'Intended Audience :: Healthcare Industry',
-  'Intended Audience :: Science/Research',
+ 'Intended Audience :: Developers',
+ 'Intended Audience :: Education',
+ 'Intended Audience :: Healthcare Industry',
+ 'Intended Audience :: Science/Research',
 
-  'Topic :: Scientific/Engineering :: Medical Science Apps.',
-  'Topic :: Software Development :: Libraries :: Python Modules',
+ 'Topic :: Scientific/Engineering :: Medical Science Apps.',
+ 'Topic :: Software Development :: Libraries :: Python Modules',
 
-  'Programming Language :: Python',
-  'Programming Language :: Python :: 3.6',
-  'Programming Language :: Python :: 3.7',
-  'Programming Language :: Python :: 3.8',
-  'Programming Language :: Python :: 3.9',
+ 'Programming Language :: Python',
+ 'Programming Language :: Python :: 3.6',
+ 'Programming Language :: Python :: 3.7',
+ 'Programming Language :: Python :: 3.8',
+ 'Programming Language :: Python :: 3.9',
 
-  'Operating System :: OS Independent'
+ 'Operating System :: OS Independent',
  ],
  license='Apache License 2.0',
  zip_safe=True)