Python bindings: Make examples PEP8 compliant

[babeltrace.git] / bindings / python / examples / sched_switch.py

diff --git a/bindings/python/examples/sched_switch.py b/bindings/python/examples/sched_switch.py
index ce116c14b4f09cc85700763c57575ec0bf6361dd..99e818e290de8de98f1f30b23a85ef821ea52a60 100644 (file)
--- a/bindings/python/examples/sched_switch.py
+++ b/bindings/python/examples/sched_switch.py
@@ -29,42 +29,41 @@ import sys
 from babeltrace import *
 
 if len(sys.argv) < 2 or len(sys.argv) > 3:
-       raise TypeError("Usage: python sched_switch.py [pid] path/to/trace")
+    raise TypeError("Usage: python sched_switch.py [pid] path/to/trace")
 elif len(sys.argv) == 3:
-       usePID = True
+    filterPID = True
 else:
-       usePID = False
+    filterPID = False
 
 traces = TraceCollection()
-ret = traces.add_trace(sys.argv[len(sys.argv)-1], "ctf")
+ret = traces.add_trace(sys.argv[len(sys.argv) - 1], "ctf")
 if ret is None:
-       raise IOError("Error adding trace")
+    raise IOError("Error adding trace")
 
 for event in traces.events:
-       while True:
-               if event.name == "sched_switch":
-                       # Getting PID
-                       pid = event.field_with_scope("pid", CTFScope.STREAM_EVENT_CONTEXT)
-                       if pid is None:
-                               print("ERROR: Missing PID info for sched_switch")
-                               break # Next event
+    if event.name != "sched_switch":
+        continue
 
-                       if usePID and (pid != long(sys.argv[1])):
-                               break # Next event
+    # Getting PID
+    pid = event.field_with_scope("pid", CTFScope.STREAM_EVENT_CONTEXT)
+    if pid is None:
+        print("ERROR: Missing PID info for sched_switch")
+        continue  # Next event
 
-                       prev_comm = event["prev_comm"]
-                       prev_tid = event["prev_tid"]
-                       prev_prio = event["prev_prio"]
-                       prev_state = event["prev_state"]
-                       next_comm = event["next_comm"]
-                       next_tid = event["next_tid"]
-                       next_prio = event["next_prio"]
+    if filterPID and (pid != long(sys.argv[1])):
+        continue  # Next event
 
-                       # Output
-                       print("sched_switch, pid = {}, TS = {}, prev_comm = {},\n\t"
-                               "prev_tid = {}, prev_prio = {}, prev_state = {},\n\t"
-                               "next_comm = {}, next_tid = {}, next_prio = {}".format(
-                               pid, event.timestamp, prev_comm, prev_tid,
-                               prev_prio, prev_state, next_comm, next_tid, next_prio))
+    prev_comm = event["prev_comm"]
+    prev_tid = event["prev_tid"]
+    prev_prio = event["prev_prio"]
+    prev_state = event["prev_state"]
+    next_comm = event["next_comm"]
+    next_tid = event["next_tid"]
+    next_prio = event["next_prio"]
 
-               break # Next event
+    # Output
+    print("sched_switch, pid = {}, TS = {}, prev_comm = {},\n\t"
+          "prev_tid = {}, prev_prio = {}, prev_state = {},\n\t"
+          "next_comm = {}, next_tid = {}, next_prio = {}".format(
+              pid, event.timestamp, prev_comm, prev_tid,
+              prev_prio, prev_state, next_comm, next_tid, next_prio))