Wrap importing commands in try-catch to have Py3 compatibility

git-cms-cvs-history

@@ -1,5 +1,8 @@
 #!/usr/bin/env python
-from commands import getstatusoutput
+try:
+  from commands import getstatusoutput
+except ImportError:
+  from subprocess import getstatusoutput
 from optparse import OptionParser
 from sys import exit
 from os import environ, chdir

git-cms-import-tagset

@@ -1,6 +1,10 @@
 #!/usr/bin/env python
 from optparse import OptionParser
-from commands import getstatusoutput
+try:
+  from commands import getstatusoutput
+except ImportError:
+  from subprocess import getstatusoutput
+
 from sys import exit
 
 def format(s, **kwds):

git-cms-showtags

@@ -7,7 +7,10 @@ exec ${python_cmd} $0 ${1+"$@"}
 """
 
 from optparse import OptionParser
-from commands import getstatusoutput
+try:
+  from commands import getstatusoutput
+except ImportError:
+  from subprocess import getstatusoutput
 from os import environ
 from os.path import join, exists
 from sys import exit