From acf6d54ec1703d92e070b4c6ab47fb2b79334850 Mon Sep 17 00:00:00 2001
From: Axel Kohlmeyer <akohlmey@gmail.com>
Date: Thu, 27 Jul 2017 09:25:39 -0400
Subject: [PATCH] python3 port, yet untested

---
 lib/Install.py | 31 ++++++++++++++++---------------
 1 file changed, 16 insertions(+), 15 deletions(-)

diff --git a/lib/Install.py b/lib/Install.py
index 29270560a6..6b90254336 100644
--- a/lib/Install.py
+++ b/lib/Install.py
@@ -4,7 +4,8 @@
 # soft linked to by many of the lib/Install.py files
 # used to automate the steps described in the corresponding lib/README
 
-import sys,commands,os
+from __future__ import print_function
+import sys,os,subprocess
 
 # help message
 
@@ -12,7 +13,7 @@ help = """
 Syntax from src dir: make lib-libname args="-m machine -e suffix"
 Syntax from lib dir: python Install.py -m machine -e suffix
 
-libname = name of lib dir (e.g. atc, colvars, h5md, meam, poems, etc)
+libname = name of lib dir (e.g. atc, h5md, meam, poems, etc)
 specify -m and optionally -e, order does not matter
 
   -m = peform a clean followed by "make -f Makefile.machine"
@@ -20,17 +21,17 @@ specify -m and optionally -e, order does not matter
   -e = set EXTRAMAKE variable in Makefile.machine to Makefile.lammps.suffix
        does not alter existing Makefile.machine
 
-Examplesx:
+Examples:
 
-make lib-colvars args="-m g++"     # build COLVARS lib with GNU g++ compiler
-make lib-meam args="-m ifort"      # build MEAM lib with Intel ifort compiler
+make lib-poems args="-m g++"    # build COLVARS lib with GNU g++ compiler
+make lib-meam args="-m ifort"   # build MEAM lib with Intel ifort compiler
 """
 
 # print error message or help
 
 def error(str=None):
-  if not str: print help
-  else: print "ERROR",str
+  if not str: print(help)
+  else: print("ERROR",str)
   sys.exit()
 
 # parse args
@@ -47,12 +48,12 @@ while iarg < nargs:
   if args[iarg] == "-m":
     if iarg+2 > nargs: error()
     machine = args[iarg+1]
-    iarg += 2  
+    iarg += 2
   elif args[iarg] == "-e":
     if iarg+2 > nargs: error()
     extraflag = 1
     suffix = args[iarg+1]
-    iarg += 2  
+    iarg += 2
   else: error()
 
 # set lib from working dir
@@ -62,7 +63,7 @@ lib = os.path.basename(cwd)
 
 # create Makefile.auto as copy of Makefile.machine
 # reset EXTRAMAKE if requested
-  
+
 if not os.path.exists("Makefile.%s" % machine):
   error("lib/%s/Makefile.%s does not exist" % (lib,machine))
 
@@ -80,12 +81,12 @@ fp.close()
 
 # make the library via Makefile.auto
 
-print "Building lib%s.a ..." % lib
+print("Building lib%s.a ..." % lib)
 cmd = "make -f Makefile.auto clean; make -f Makefile.auto"
-txt = commands.getoutput(cmd)
-print txt
+txt = subprocess.check_output(cmd,shell=True,stderr=subprocess.STDOUT)
+print(txt)
 
-if os.path.exists("lib%s.a" % lib): print "Build was successful"
+if os.path.exists("lib%s.a" % lib): print("Build was successful")
 else: error("Build of lib/%s/lib%s.a was NOT successful" % (lib,lib))
 if not os.path.exists("Makefile.lammps"):
-  print "lib/%s/Makefile.lammps was NOT created" % lib
+  print("lib/%s/Makefile.lammps was NOT created" % lib)