Added single source version information.

nmrstarlib/__init__.py

@@ -27,11 +27,13 @@
     chemical shift values using the Graphviz (http://www.graphviz.org/) DOT Languge description
     and provides code example for utilizing the library.
 """
-from __future__ import print_function
 
 import os
 from . import nmrstarlib
 
+__title__ = "nmrstarlib"
+__version__ = "1.1.0"
+
 this_directory = os.path.dirname(__file__)
 
 if nmrstarlib.NMRSTAR_VERSION == "3":

nmrstarlib/__main__.py

@@ -29,6 +29,7 @@
 from . import nmrstarlib
 from .converter import Converter
 from .csviewer import CSViewer
+from nmrstarlib import __version__
 
 
 def main(cmdargs):
@@ -51,5 +52,5 @@ def main(cmdargs):
         csviewer.csview(view=True)
 
 
-args = docopt.docopt(__doc__, version="1.1.0")
+args = docopt.docopt(__doc__, version=__version__)
 main(args)

setup.py

@@ -3,6 +3,7 @@
 
 import os
 import sys
+import re
 from setuptools import setup, find_packages, Extension
 
 try:
@@ -22,13 +23,25 @@ def readme():
     with open('README.rst') as readme_file:
         return readme_file.read()
 
+
+def find_version():
+    with open('nmrstarlib/__init__.py', 'r') as fd:
+        version = re.search(r'^__version__\s*=\s*[\'"]([^\'"]*)[\'"]',
+                            fd.read(), re.MULTILINE).group(1)
+    if not version:
+        raise RuntimeError('Cannot find version information')
+    return version
+
+
 REQUIRES = [
     'docopt >= 0.6.2',
     'graphviz >= 0.5.2'
 ]
 
+
 EXTENSIONS = []
 
+
 if HAVE_CYTHON:
     EXTENSIONS.append(Extension('nmrstarlib.cbmrblex',
                                 sources=['nmrstarlib/cbmrblex.pyx']))
@@ -38,7 +51,7 @@ def readme():
 
 setup(
     name='nmrstarlib',
-    version='1.1.0',
+    version=find_version(),
     author='Andrey Smelter',
     author_email='andrey.smelter@gmail.com',
     description='Python library for parsing data from NMR-STAR format files',