A first version of the obidistutils adapted to Python3

distutils.ext/obidistutils/serenity/rerun.py

@@ -0,0 +1,59 @@
+'''
+Created on 24 mai 2015
+
+@author: coissac
+'''
+
+import sys
+import os
+from distutils import log
+from distutils.errors import DistutilsError
+
+
+from obidistutils.serenity.globals import saved_args
+from obidistutils.serenity.checkpython import is_python_version,\
+    lookfor_good_python
+
+
+def rerun_with_anothe_python(path, minversion='3.4',maxversion=None, fork=False):
+        
+    if saved_args:
+        args = saved_args
+    else:
+        args = list(sys.argv)
+        
+          
+    assert is_python_version(path,minversion,maxversion), \
+           'the selected python is not adapted to the installation of this package'
+                   
+    args.insert(0, path)
+        
+    sys.stderr.flush()
+    sys.stdout.flush()
+    
+    if fork:
+        log.info('Forking a new install process')
+        os.system(' '.join(list(args)))
+        log.info('External process ended')
+        sys.exit(0)
+    else:
+        os.execv(path,list(args))
+
+def enforce_good_python(minversion='3.4',maxversion=None, fork=False):
+    if is_python_version(minversion=minversion,maxversion=maxversion):
+        return True
+    
+    goodpython = lookfor_good_python(minversion,maxversion)
+    
+    if not goodpython:
+        raise DistutilsError('No good python identified on your system')
+
+    goodpython=goodpython[0]
+    
+    log.warn("========================================")    
+    log.warn("")
+    log.warn("    Switching to python : %s" % goodpython)
+    log.warn("")
+    log.warn("========================================")    
+
+    rerun_with_anothe_python(goodpython)