use io.open instead of open

Author: fabianp

memory_profiler.py

@@ -15,7 +15,7 @@
 import linecache
 import logging
 import os
-from io import open
+import io
 import pdb
 import subprocess
 import sys
@@ -1249,7 +1249,7 @@ def exec_with_profiler(filename, profiler, backend, passed_args=[]):
         if _backend == 'tracemalloc' and has_tracemalloc:
             tracemalloc.start()
 
-        with open(filename, encoding='utf-8') as f:
+        with io.open(filename, encoding='utf-8') as f:
             exec(compile(f.read(), filename, 'exec'), ns, ns)
     finally:
         if has_tracemalloc and tracemalloc.is_tracing():

test/test_async.py

@@ -4,16 +4,15 @@
 
 
 @profile
-@asyncio.coroutine
-def my_func():
+async def my_func():
     a = [1] * (10 ** 6)
     b = [2] * (2 * 10 ** 7)
-    yield from asyncio.sleep(1e-2)
+    await asyncio.sleep(1e-2)
     del b
-    return 42
 
+async def main():
+    task = asyncio.create_task(my_func())
+    res = await asyncio.gather(task)
 
 if __name__ == '__main__':
-    loop = asyncio.get_event_loop()
-    res = loop.run_until_complete(my_func())
-    assert res == 42
+    asyncio.run(main())  # main loop