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Date:   Thu, 28 Feb 2019 00:11:54 -0800
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To:     linux-tip-commits@vger.kernel.org
Subject: [tip:perf/core] perf script python: Add Python3 support to
 syscall-counts-by-pid.py
Git-Commit-ID: de667cce7f4f96b6e22da8fd9c065b961f355080
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Commit-ID:  de667cce7f4f96b6e22da8fd9c065b961f355080
Gitweb:     https://git.kernel.org/tip/de667cce7f4f96b6e22da8fd9c065b961f355080
Author:     Tony Jones <tonyj@suse.de>
AuthorDate: Fri, 22 Feb 2019 15:06:18 -0800
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Mon, 25 Feb 2019 17:17:13 -0300

perf script python: Add Python3 support to syscall-counts-by-pid.py

Support both Python2 and Python3 in the syscall-counts-by-pid.py script

There may be differences in the ordering of output lines due to
differences in dictionary ordering etc.  However the format within lines
should be unchanged.

The use of 'from __future__' implies the minimum supported Python2 version
is now v2.6

Signed-off-by: Tony Jones <tonyj@suse.de>
Link: http://lkml.kernel.org/r/20190222230619.17887-15-tonyj@suse.de
Signed-off-by: Seeteena Thoufeek <s1seetee@linux.vnet.ibm.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/scripts/python/syscall-counts-by-pid.py | 22 ++++++++++++----------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/tools/perf/scripts/python/syscall-counts-by-pid.py b/tools/perf/scripts/python/syscall-counts-by-pid.py
index daf314cc5dd3..42782487b0e9 100644
--- a/tools/perf/scripts/python/syscall-counts-by-pid.py
+++ b/tools/perf/scripts/python/syscall-counts-by-pid.py
@@ -5,6 +5,8 @@
 # Displays system-wide system call totals, broken down by syscall.
 # If a [comm] arg is specified, only syscalls called by [comm] are displayed.
 
+from __future__ import print_function
+
 import os, sys
 
 sys.path.append(os.environ['PERF_EXEC_PATH'] + \
@@ -31,7 +33,7 @@ if len(sys.argv) > 1:
 syscalls = autodict()
 
 def trace_begin():
-	print "Press control+C to stop and show the summary"
+	print("Press control+C to stop and show the summary")
 
 def trace_end():
 	print_syscall_totals()
@@ -55,20 +57,20 @@ def syscalls__sys_enter(event_name, context, common_cpu,
 
 def print_syscall_totals():
     if for_comm is not None:
-	    print "\nsyscall events for %s:\n\n" % (for_comm),
+	    print("\nsyscall events for %s:\n" % (for_comm))
     else:
-	    print "\nsyscall events by comm/pid:\n\n",
+	    print("\nsyscall events by comm/pid:\n")
 
-    print "%-40s  %10s\n" % ("comm [pid]/syscalls", "count"),
-    print "%-40s  %10s\n" % ("----------------------------------------", \
-                                 "----------"),
+    print("%-40s  %10s" % ("comm [pid]/syscalls", "count"))
+    print("%-40s  %10s" % ("----------------------------------------",
+                            "----------"))
 
     comm_keys = syscalls.keys()
     for comm in comm_keys:
 	    pid_keys = syscalls[comm].keys()
 	    for pid in pid_keys:
-		    print "\n%s [%d]\n" % (comm, pid),
+		    print("\n%s [%d]" % (comm, pid))
 		    id_keys = syscalls[comm][pid].keys()
-		    for id, val in sorted(syscalls[comm][pid].iteritems(), \
-				  key = lambda(k, v): (v, k),  reverse = True):
-			    print "  %-38s  %10d\n" % (syscall_name(id), val),
+		    for id, val in sorted(syscalls[comm][pid].items(), \
+				  key = lambda kv: (kv[1], kv[0]),  reverse = True):
+			    print("  %-38s  %10d" % (syscall_name(id), val))