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perf scripts python: call-graph-from-sql.py: Make a "Main" function

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Make a "Main" function so that the variables used do not pollute the global
namespace.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/20181001062853.28285-6-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Adrian Hunter 2018-10-01 09:28:39 +03:00 committed by Arnaldo Carvalho de Melo
parent 99a097c987
commit 7e4fc93e2a
1 changed files with 6 additions and 1 deletions
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7
tools/perf/scripts/python/call-graph-from-sql.py
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@ -284,7 +284,9 @@ class MainWindow(QMainWindow):
self.setCentralWidget(self.view)
if __name__ == '__main__':
# Main
def Main():
if (len(sys.argv) < 2):
print >> sys.stderr, "Usage is: call-graph-from-sql.py <database name>"
raise Exception("Too few arguments")
@ -331,3 +333,6 @@ if __name__ == '__main__':
err = app.exec_()
db.close()
sys.exit(err)
if __name__ == "__main__":
Main()