stickytruth · October 17, 2019 05:08 · Mar 11, 2015 · Mar 11, 2015 · Mar 11, 2015
diff --git a/example.py b/example.py
@@ -1,5 +1,6 @@
 """
 Flask's reloader causes kernprof to fail.
+Without the reloader it appears to work.
 """
 
 from flask import Flask, request
@@ -20,6 +21,12 @@ def index():
 
 
 if __name__ == '__main__':
+    # Fails - "debug" enables the reloader
+    # app.run('127.0.0.1', 5000, debug=True)
+
+    # Works - "use_debugger" does not enable the reloader
+    # app.run('127.0.0.1', 5000, use_debugger=False)
+
     # Fails
     # app.run('127.0.0.1', 5000, use_reloader=True)
 
@@ -29,3 +36,4 @@ def index():
     # Works
     with app.test_client() as c:
         c.get('/')
+
diff --git a/example.py b/example.py
@@ -29,5 +29,3 @@ def index():
     # Works
     with app.test_client() as c:
         c.get('/')
-
-# kernprof -l -v example.py
diff --git a/kernprof -l -v example.py b/kernprof -l -v example.py
@@ -0,0 +1,18 @@
+$ kernprof -l -v example.py
+Wrote profile results to example.py.lprof
+Timer unit: 1e-06 s
+
+Total time: 1.00117 s
+File: example.py
+Function: index at line 13
+
+Line #      Hits         Time  Per Hit   % Time  Line Contents
+==============================================================
+    13                                           @app.route('/')
+    14                                           @profile
+    15                                           def index():
+    16         1      1001072 1001072.0    100.0      time.sleep(1)
+    17         1           97     97.0      0.0      fn = request.environ.get('werkzeug.server.shutdown')
+    18         1            3      3.0      0.0      if fn:
+    19                                                   fn()
+    20         1            2      2.0      0.0      return 'ok'
diff --git a/example.py b/example.py
@@ -0,0 +1,33 @@
+"""
+Flask's reloader causes kernprof to fail.
+"""
+
+from flask import Flask, request
+import time
+
+app = Flask(__name__)
+app.testing = True
+
+
+@app.route('/')
+@profile
+def index():
+    time.sleep(1)
+    fn = request.environ.get('werkzeug.server.shutdown')
+    if fn:
+        fn()
+    return 'ok'
+
+
+if __name__ == '__main__':
+    # Fails
+    # app.run('127.0.0.1', 5000, use_reloader=True)
+
+    # Works
+    # app.run('127.0.0.1', 5000, use_reloader=False)
+
+    # Works
+    with app.test_client() as c:
+        c.get('/')
+
+# kernprof -l -v example.py
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