René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"InterconnectedSystem changing the system name if signal is mistyped","articleBody":"Let's say I have an InterconnectedSystem as follows:\r\n\r\n```Python\r\nct.interconnect(\r\n    [\r\n        ct.rss(name='a', inputs=('u0'), outputs=('y0'), strictly_proper=True),\r\n        ct.rss(name='b', inputs=('u0','u1'), outputs=('y0','y1'), strictly_proper=True),\r\n    ],\r\n    name='ab',\r\n    connections=(\r\n        ['b.u0', 'a.y0'],\r\n    ),\r\n    inputs=(\r\n        'b.u0', 'b.u1',\r\n    ),\r\n    outputs=(\r\n        'b.y0','b.y1',\r\n    )\r\n)\r\n```\r\n\r\nIts `.__dict__` is:\r\n```Python\r\n{'name': 'ab',  # \u003c\u003c\u003c\u003c\u003c Note the correct name here\r\n 'ninputs': 2,\r\n 'input_index': {'a.u0': 0, 'b.u1': 1},\r\n 'noutputs': 2,\r\n 'output_index': {'b.y0': 0, 'b.y1': 1},\r\n 'nstates': 2,\r\n 'state_index': {'a_x[0]': 0, 'b_x[0]': 1},\r\n 'dt': 0,\r\n 'params': {},\r\n 'syslist': [\u003cLinearIOSystem:a:['u0']-\u003e['y0']\u003e,\r\n  \u003cLinearIOSystem:b:['u0', 'u1']-\u003e['y0', 'y1']\u003e],\r\n 'syslist_index': {'a': 0, 'b': 1},\r\n 'state_offset': [0, 1],\r\n 'input_offset': [0, 1],\r\n 'output_offset': [0, 1],\r\n 'connect_map': array([[0., 0., 0.],\r\n        [1., 0., 0.],\r\n        [0., 0., 0.]]),\r\n 'input_map': array([[1., 0.],\r\n        [1., 0.],\r\n        [0., 1.]]),\r\n 'output_map': array([[0., 1., 0., 0., 0., 0.],\r\n        [0., 0., 1., 0., 0., 0.]]),\r\n 'A': array([[-0.52126004,  0.        ],\r\n        [ 0.        , -1.05433024]]),\r\n 'B': array([[-0.88399486,  0.        ],\r\n        [ 0.        ,  0.64167349]]),\r\n 'C': array([[0.       , 0.       ],\r\n        [0.       , 0.7629647]]),\r\n 'D': array([[0., 0.],\r\n        [0., 0.]])}\r\n```\r\n\r\nIf I mistype an input, say `a.a0` to `a0`, it weirdly changes the name of the resulting InterconnectedSystem to `a0`, which sounds like a bug:\r\n```Python\r\n{'name': 'u0',  # \u003c\u003c\u003c\u003c\u003c Now, the name is wrong!\r\n 'ninputs': 2,\r\n 'input_index': {'u0': 0, 'b.u1': 1},\r\n 'noutputs': 2,\r\n 'output_index': {'b.y0': 0, 'b.y1': 1},\r\n 'nstates': 2,\r\n 'state_index': {'a_x[0]': 0, 'b_x[0]': 1},\r\n 'dt': 0,\r\n 'params': {},\r\n 'syslist': [\u003cLinearIOSystem:a:['u0']-\u003e['y0']\u003e,\r\n  \u003cLinearIOSystem:b:['u0', 'u1']-\u003e['y0', 'y1']\u003e],\r\n 'syslist_index': {'a': 0, 'b': 1},\r\n 'state_offset': [0, 1],\r\n 'input_offset': [0, 1],\r\n 'output_offset': [0, 1],\r\n 'connect_map': array([[0., 0., 0.],\r\n        [1., 0., 0.],\r\n        [0., 0., 0.]]),\r\n 'input_map': array([[1., 0.],\r\n        [1., 0.],\r\n        [0., 1.]]),\r\n 'output_map': array([[0., 1., 0., 0., 0., 0.],\r\n        [0., 0., 1., 0., 0., 0.]]),\r\n 'A': array([[-0.52126004,  0.        ],\r\n        [ 0.        , -1.05433024]]),\r\n 'B': array([[-0.88399486,  0.        ],\r\n        [ 0.        ,  0.64167349]]),\r\n 'C': array([[0.       , 0.       ],\r\n        [0.       , 0.7629647]]),\r\n 'D': array([[0., 0.],\r\n        [0., 0.]])}\r\n```\r\n\r\nThanks","author":{"url":"https://github.com/joaoantoniocardoso","@type":"Person","name":"joaoantoniocardoso"},"datePublished":"2023-05-25T04:21:58.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/897/python-control/issues/897"}