hai, i am executing simple programs from Ryu book..simple_switch,traffic monitoring...i am getting the following error. how to resolve this error..anyone pls tell me.
loading app ryu.app.simple_switch_12.py Traceback (most recent call last): File "/usr/local/bin/ryu-manager", line 9, in <module> load_entry_point('ryu==4.30', 'console_scripts', 'ryu-manager')() File "/usr/local/lib/python2.7/dist-packages/ryu/cmd/manager.py", line 98, in main app_mgr.load_apps(app_lists) File "/usr/local/lib/python2.7/dist-packages/ryu/base/app_manager.py", line 415, in load_apps cls = self.load_app(app_cls_name) File "/usr/local/lib/python2.7/dist-packages/ryu/base/app_manager.py", line 392, in load_app mod = utils.import_module(name) File "/usr/local/lib/python2.7/dist-packages/ryu/utils.py", line 108, in import_module return importlib.import_module(modname) File "/usr/lib/python2.7/importlib/__init__.py", line 37, in import_module __import__(name) ImportError: No module named py -- Thanks & Regards, P.Suguna Mobile:9894549016
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