[PATCH v3] perf scripts python: Add Python 3 support to export-to-sqlite.py

From: Seeteena Thoufeek
Date: Mon Jan 21 2019 - 05:39:30 EST


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

Also, handles the conversion of "print >> sys.stderr".

Signed-off-by: Seeteena Thoufeek <s1seetee@xxxxxxxxxxxxxxxxxx>
Reviewed-by: Ravi Bangoria <ravi.bangoria@xxxxxxxxxxxxx>
---
tools/perf/scripts/python/export-to-sqlite.py | 19 ++++++++++---------
1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/tools/perf/scripts/python/export-to-sqlite.py b/tools/perf/scripts/python/export-to-sqlite.py
index 245caf2..95bfcb2 100644
--- a/tools/perf/scripts/python/export-to-sqlite.py
+++ b/tools/perf/scripts/python/export-to-sqlite.py
@@ -9,6 +9,7 @@
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
# more details.
+from __future__ import print_function

import os
import sys
@@ -61,10 +62,10 @@ perf_db_export_calls = False
perf_db_export_callchains = False

def usage():
- print >> sys.stderr, "Usage is: export-to-sqlite.py <database name> [<columns>] [<calls>] [<callchains>]"
- print >> sys.stderr, "where: columns 'all' or 'branches'"
- print >> sys.stderr, " calls 'calls' => create calls and call_paths table"
- print >> sys.stderr, " callchains 'callchains' => create call_paths table"
+ sys.stderr.write("Usage is: export-to-sqlite.py <database name> [<columns>] [<calls>] [<callchains>]");
+ sys.stderr.write("where: columns 'all' or 'branches'");
+ sys.stderr.write(" calls 'calls' => create calls and call_paths table");
+ sys.stderr.write(" callchains 'callchains' => create call_paths table");
raise Exception("Too few arguments")

if (len(sys.argv) < 2):
@@ -100,7 +101,7 @@ def do_query_(q):
return
raise Exception("Query failed: " + q.lastError().text())

-print datetime.datetime.today(), "Creating database..."
+print(datetime.datetime.today(), "Creating database...")

db_exists = False
try:
@@ -376,7 +377,7 @@ if perf_db_export_calls:
call_query.prepare("INSERT INTO calls VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)")

def trace_begin():
- print datetime.datetime.today(), "Writing records..."
+ print(datetime.datetime.today(), "Writing records...")
do_query(query, 'BEGIN TRANSACTION')
# id == 0 means unknown. It is easier to create records for them than replace the zeroes with NULLs
evsel_table(0, "unknown")
@@ -394,13 +395,13 @@ unhandled_count = 0
def trace_end():
do_query(query, 'END TRANSACTION')

- print datetime.datetime.today(), "Adding indexes"
+ print(datetime.datetime.today(), "Adding indexes")
if perf_db_export_calls:
do_query(query, 'CREATE INDEX pcpid_idx ON calls (parent_call_path_id)')

if (unhandled_count):
- print datetime.datetime.today(), "Warning: ", unhandled_count, " unhandled events"
- print datetime.datetime.today(), "Done"
+ print(datetime.datetime.today(), "Warning: ", unhandled_count, " unhandled events")
+ print(datetime.datetime.today(), "Done")

def trace_unhandled(event_name, context, event_fields_dict):
global unhandled_count
--
1.8.3.1