Better version handling + Fix launchers

VERSION

-3.0.0-alpha

batsim/__init__.py

+from batsim._version import __version__

batsim/_version.py

+__version__ = "3.0.0-alpha"

batsim/cmds/experiments.py

@@ -17,14 +17,11 @@ import json
 from docopt import docopt
 
 from batsim.tools.experiments import launch_experiment
+from batsim import __version__
 
 
 def main():
-    f = open("./VERSION")
-    version = f.read().strip()
-    f.close()
-
-    arguments = docopt(__doc__, version=version)
+    arguments = docopt(__doc__, version=__version__)
 
     verbose = not bool(arguments["--quiet"])
     debug = bool(arguments["--debug"])

batsim/cmds/launcher.py

@@ -22,14 +22,10 @@ import json
 from docopt import docopt
 
 from batsim.tools.launcher import launch_scheduler, instanciate_scheduler
-
+from batsim import __version__
 
 def main():
-    f = open("./VERSION")
-    version = f.read().strip()
-    f.close()
-
-    arguments = docopt(__doc__, version=version)
+    arguments = docopt(__doc__, version=__version__)
 
     if arguments['--verbose']:
         verbose = 999

setup.py

@@ -127,19 +127,22 @@ class FormatCommand(UserCommand):
             "--experimental",
             self.path)
 
+
 f = open("./README.rst")
 read_me = f.read().strip()
 f.close()
 
-f = open("./VERSION")
-version = f.read().strip()
+# Get the version
+f = open('batsim/_version.py')
+version = f.read()
+exec(version)
 f.close()
 
 setup(
     name='pybatsim',
     author="Michael Mercier",
     author_email="michael.mercier@inria.fr",
-    version=version,
+    version=__version__,
     url='https://gitlab.inria.fr/batsim/pybatsim',
     packages=find_packages(),
     install_requires=requirements,