linux-kernel - [PATCH] perf scripts python: Add Python 3 support to syscall-counts.py

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Date:   Wed, 16 Jan 2019 21:53:44 +0530
From:   Seeteena Thoufeek <s1seetee@...ux.vnet.ibm.com>
To:     peterz@...radead.org, mingo@...hat.com, acme@...nel.org,
        alexander.shishkin@...ux.intel.com, jolsa@...hat.com,
        namhyung@...nel.org, linux-kernel@...r.kernel.org
Cc:     s1seetee@...ux.vnet.ibm.com, ravi.bangoria@...ux.ibm.com
Subject: [PATCH] perf scripts python: Add Python 3 support to syscall-counts.py

Support both Python 2 and Python 3 in syscall-counts.py. ``print``
is now a function rather than a statement. This should have no
functional change.

Fix lambda syntax error

Signed-off-by: Seeteena Thoufeek <s1seetee@...ux.vnet.ibm.com>
Reviewed-by: Ravi Bangoria <ravi.bangoria@...ux.ibm.com>
---
 tools/perf/scripts/python/syscall-counts.py | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/tools/perf/scripts/python/syscall-counts.py b/tools/perf/scripts/python/syscall-counts.py
index e66a773..141b7fc 100644
--- a/tools/perf/scripts/python/syscall-counts.py
+++ b/tools/perf/scripts/python/syscall-counts.py
@@ -28,7 +28,7 @@ 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()
@@ -51,14 +51,14 @@ 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\n" % (for_comm)),
     else:
-	    print "\nsyscall events:\n\n",
+	    print("\nsyscall events:\n\n"),
 
-    print "%-40s  %10s\n" % ("event", "count"),
-    print "%-40s  %10s\n" % ("----------------------------------------", \
-                                 "-----------"),
+    print("%-40s  %10s\n" % ("event", "count")),
+    print("%-40s  %10s\n" % ("----------------------------------------", \
+                                 "-----------")),
 
-    for id, val in sorted(syscalls.iteritems(), key = lambda(k, v): (v, k), \
+    for id, val in sorted(syscalls.iteritems(), key = lambda k_v: (k_v[1], k_v[0]), \
 				  reverse = True):
-	    print "%-40s  %10d\n" % (syscall_name(id), val),
+	    print("%-40s  %10d\n" % (syscall_name(id), val)),
-- 
1.8.3.1