pyflakes (pylint, ruff, ....) clean-up, CI? #1101

control/modelsimp.py:343:9: local variable 'order' is assigned to but never used
control/pzmap.py:14:1: 'math.pi' imported but unused
control/pzmap.py:18:1: 'numpy.cos' imported but unused
control/pzmap.py:18:1: 'numpy.exp' imported but unused
control/pzmap.py:18:1: 'numpy.linspace' imported but unused
control/pzmap.py:18:1: 'numpy.sin' imported but unused
control/pzmap.py:18:1: 'numpy.sqrt' imported but unused
control/pzmap.py:25:1: '.freqplot._freqplot_defaults' imported but unused
control/pzmap.py:28:1: '.lti.LTI' imported but unused
control/stochsys.py:25:1: '.iosys.InputOutputSystem' imported but unused
control/stochsys.py:25:1: '.iosys._process_indices' imported but unused
control/stochsys.py:29:1: redefinition of unused 'StateSpace' from line 23
control/stochsys.py:173:9: local variable 'NN' is assigned to but never used
control/stochsys.py:292:9: local variable 'NN' is assigned to but never used
control/stochsys.py:449:13: undefined name 'warnings'
control/stochsys.py:463:9: 'raise NotImplemented' should be 'raise NotImplementedError'
control/iosys.py:11:1: 'warnings.warn' imported but unused
control/nlsys.py:21:1: 'copy' imported but unused
control/nlsys.py:28:1: '.iosys._process_signal_list' imported but unused
control/nlsys.py:214:9: local variable 'dt' is assigned to but never used
control/nlsys.py:246:9: local variable 'dt' is assigned to but never used
control/nlsys.py:814:16: f-string is missing placeholders
control/nlsys.py:834:16: f-string is missing placeholders
control/nlsys.py:2477:5: '.statesp._convert_to_statespace' imported but unused
control/nlsys.py:2478:5: '.xferfcn.TransferFunction' imported but unused
control/nlsys.py:2540:12: f-string is missing placeholders
control/nlsys.py:2579:16: f-string is missing placeholders
control/nlsys.py:2642:24: f-string is missing placeholders
control/nlsys.py:2668:16: f-string is missing placeholders
control/nlsys.py:2745:24: f-string is missing placeholders
control/mateqn.py:40:1: 'numpy.copy' imported but unused
control/mateqn.py:40:1: 'numpy.dot' imported but unused
control/mateqn.py:40:1: 'numpy.atleast_2d' imported but unused
control/statesp.py:19:1: 'copy.deepcopy' imported but unused
control/statesp.py:25:1: 'numpy.array' imported but unused
control/statesp.py:25:1: 'numpy.ones' imported but unused
control/statesp.py:35:1: '.iosys._process_dt_keyword' imported but unused
control/statesp.py:35:1: '.iosys.iosys_repr' imported but unused
control/statesp.py:35:1: '.iosys.isdtime' imported but unused
control/nichols.py:24:1: '.freqplot._default_frequency_range' imported but unused
control/nichols.py:24:1: '.freqplot._freqplot_defaults' imported but unused
control/nichols.py:140:29: undefined name 'idx_sys'
control/phaseplot.py:41:1: '.exception.ControlNotImplemented' imported but unused
control/phaseplot.py:165:5: local variable 'passed_kwargs' is assigned to but never used
control/phaseplot.py:633:14: local variable 'single_color' is assigned to but never used
control/phaseplot.py:1094:13: f-string is missing placeholders
control/phaseplot.py:1096:19: undefined name 'ControlArgument'
control/phaseplot.py:1096:35: f-string is missing placeholders
control/phaseplot.py:1261:9: local variable 'xy' is assigned to but never used
control/phaseplot.py:1268:9: local variable 'bp' is assigned to but never used
control/statefbk.py:49:1: '.exception.ControlNotImplemented' imported but unused
control/statefbk.py:53:1: '.mateqn._check_shape' imported but unused
control/statefbk.py:55:1: '.statesp._convert_to_statespace' imported but unused
control/statefbk.py:278:5: local variable 'b' is assigned to but never used
control/timeresp.py:1841:5: '.lti.LTI' imported but unused
control/freqplot.py:14:1: 'os.path.commonprefix' imported but unused
control/freqplot.py:763:17: local variable 'mag_ylim' is assigned to but never used
control/freqplot.py:769:17: local variable 'phase_ylim' is assigned to but never used
control/freqplot.py:2219:38: undefined name 'arg'
control/__init__.py:74:1: 'from .iosys import *' used; unable to detect undefined names
control/__init__.py:75:1: 'from .nlsys import *' used; unable to detect undefined names
control/__init__.py:76:1: 'from .lti import *' used; unable to detect undefined names
control/__init__.py:77:1: 'from .statesp import *' used; unable to detect undefined names
control/__init__.py:78:1: 'from .xferfcn import *' used; unable to detect undefined names
control/__init__.py:79:1: 'from .frdata import *' used; unable to detect undefined names
control/__init__.py:82:1: 'from .timeresp import *' used; unable to detect undefined names
control/__init__.py:83:1: 'from .timeplot import *' used; unable to detect undefined names
control/__init__.py:85:1: 'from .bdalg import *' used; unable to detect undefined names
control/__init__.py:86:1: 'from .ctrlplot import *' used; unable to detect undefined names
control/__init__.py:87:1: 'from .delay import *' used; unable to detect undefined names
control/__init__.py:88:1: 'from .descfcn import *' used; unable to detect undefined names
control/__init__.py:89:1: 'from .dtime import *' used; unable to detect undefined names
control/__init__.py:90:1: 'from .freqplot import *' used; unable to detect undefined names
control/__init__.py:91:1: 'from .margins import *' used; unable to detect undefined names
control/__init__.py:92:1: 'from .mateqn import *' used; unable to detect undefined names
control/__init__.py:93:1: 'from .modelsimp import *' used; unable to detect undefined names
control/__init__.py:94:1: 'from .nichols import *' used; unable to detect undefined names
control/__init__.py:95:1: 'from .phaseplot import *' used; unable to detect undefined names
control/__init__.py:96:1: 'from .pzmap import *' used; unable to detect undefined names
control/__init__.py:97:1: 'from .rlocus import *' used; unable to detect undefined names
control/__init__.py:98:1: 'from .statefbk import *' used; unable to detect undefined names
control/__init__.py:99:1: 'from .stochsys import *' used; unable to detect undefined names
control/__init__.py:100:1: 'from .ctrlutil import *' used; unable to detect undefined names
control/__init__.py:101:1: 'from .canonical import *' used; unable to detect undefined names
control/__init__.py:102:1: 'from .robust import *' used; unable to detect undefined names
control/__init__.py:103:1: 'from .config import *' used; unable to detect undefined names
control/__init__.py:104:1: 'from .sisotool import *' used; unable to detect undefined names
control/__init__.py:105:1: 'from .passivity import *' used; unable to detect undefined names
control/__init__.py:106:1: 'from .sysnorm import *' used; unable to detect undefined names
control/__init__.py:109:1: '.phaseplot' imported but unused
control/__init__.py:110:1: '.phaseplot as pp' imported but unused
control/__init__.py:113:1: 'from .exception import *' used; unable to detect undefined names
control/__init__.py:124:13: 'ss' may be undefined, or defined from star imports: .bdalg, .canonical, .config, .ctrlplot, .ctrlutil, .delay, .descfcn, .dtime, .exception, .frdata, .freqplot, .iosys, .lti, .margins, .mateqn, .modelsimp, .nichols, .nlsys, .passivity, .phaseplot, .pzmap, .rlocus, .robust, .sisotool, .statefbk, .statesp, .stochsys, .sysnorm, .timeplot, .timeresp, .xferfcn
control/__init__.py:124:1: 'LTI' may be undefined, or defined from star imports: .bdalg, .canonical, .config, .ctrlplot, .ctrlutil, .delay, .descfcn, .dtime, .exception, .frdata, .freqplot, .iosys, .lti, .margins, .mateqn, .modelsimp, .nichols, .nlsys, .passivity, .phaseplot, .pzmap, .rlocus, .robust, .sisotool, .statefbk, .statesp, .stochsys, .sysnorm, .timeplot, .timeresp, .xferfcn
control/__init__.py:125:13: 'tf' may be undefined, or defined from star imports: .bdalg, .canonical, .config, .ctrlplot, .ctrlutil, .delay, .descfcn, .dtime, .exception, .frdata, .freqplot, .iosys, .lti, .margins, .mateqn, .modelsimp, .nichols, .nlsys, .passivity, .phaseplot, .pzmap, .rlocus, .robust, .sisotool, .statefbk, .statesp, .stochsys, .sysnorm, .timeplot, .timeresp, .xferfcn
control/__init__.py:125:1: 'LTI' may be undefined, or defined from star imports: .bdalg, .canonical, .config, .ctrlplot, .ctrlutil, .delay, .descfcn, .dtime, .exception, .frdata, .freqplot, .iosys, .lti, .margins, .mateqn, .modelsimp, .nichols, .nlsys, .passivity, .phaseplot, .pzmap, .rlocus, .robust, .sisotool, .statefbk, .statesp, .stochsys, .sysnorm, .timeplot, .timeresp, .xferfcn
control/__init__.py:126:17: 'bode_plot' may be undefined, or defined from star imports: .bdalg, .canonical, .config, .ctrlplot, .ctrlutil, .delay, .descfcn, .dtime, .exception, .frdata, .freqplot, .iosys, .lti, .margins, .mateqn, .modelsimp, .nichols, .nlsys, .passivity, .phaseplot, .pzmap, .rlocus, .robust, .sisotool, .statefbk, .statesp, .stochsys, .sysnorm, .timeplot, .timeresp, .xferfcn
control/__init__.py:126:1: 'LTI' may be undefined, or defined from star imports: .bdalg, .canonical, .config, .ctrlplot, .ctrlutil, .delay, .descfcn, .dtime, .exception, .frdata, .freqplot, .iosys, .lti, .margins, .mateqn, .modelsimp, .nichols, .nlsys, .passivity, .phaseplot, .pzmap, .rlocus, .robust, .sisotool, .statefbk, .statesp, .stochsys, .sysnorm, .timeplot, .timeresp, .xferfcn
control/__init__.py:127:20: 'nyquist_plot' may be undefined, or defined from star imports: .bdalg, .canonical, .config, .ctrlplot, .ctrlutil, .delay, .descfcn, .dtime, .exception, .frdata, .freqplot, .iosys, .lti, .margins, .mateqn, .modelsimp, .nichols, .nlsys, .passivity, .phaseplot, .pzmap, .rlocus, .robust, .sisotool, .statefbk, .statesp, .stochsys, .sysnorm, .timeplot, .timeresp, .xferfcn
control/__init__.py:127:1: 'LTI' may be undefined, or defined from star imports: .bdalg, .canonical, .config, .ctrlplot, .ctrlutil, .delay, .descfcn, .dtime, .exception, .frdata, .freqplot, .iosys, .lti, .margins, .mateqn, .modelsimp, .nichols, .nlsys, .passivity, .phaseplot, .pzmap, .rlocus, .robust, .sisotool, .statefbk, .statesp, .stochsys, .sysnorm, .timeplot, .timeresp, .xferfcn
control/__init__.py:128:20: 'nichols_plot' may be undefined, or defined from star imports: .bdalg, .canonical, .config, .ctrlplot, .ctrlutil, .delay, .descfcn, .dtime, .exception, .frdata, .freqplot, .iosys, .lti, .margins, .mateqn, .modelsimp, .nichols, .nlsys, .passivity, .phaseplot, .pzmap, .rlocus, .robust, .sisotool, .statefbk, .statesp, .stochsys, .sysnorm, .timeplot, .timeresp, .xferfcn
control/__init__.py:128:1: 'LTI' may be undefined, or defined from star imports: .bdalg, .canonical, .config, .ctrlplot, .ctrlutil, .delay, .descfcn, .dtime, .exception, .frdata, .freqplot, .iosys, .lti, .margins, .mateqn, .modelsimp, .nichols, .nlsys, .passivity, .phaseplot, .pzmap, .rlocus, .robust, .sisotool, .statefbk, .statesp, .stochsys, .sysnorm, .timeplot, .timeresp, .xferfcn
control/__init__.py:131:1: 'reset_defaults' may be undefined, or defined from star imports: .bdalg, .canonical, .config, .ctrlplot, .ctrlutil, .delay, .descfcn, .dtime, .exception, .frdata, .freqplot, .iosys, .lti, .margins, .mateqn, .modelsimp, .nichols, .nlsys, .passivity, .phaseplot, .pzmap, .rlocus, .robust, .sisotool, .statefbk, .statesp, .stochsys, .sysnorm, .timeplot, .timeresp, .xferfcn
control/rlocus.py:19:1: 'functools.partial' imported but unused
control/rlocus.py:21:1: 'matplotlib.pyplot as plt' imported but unused
control/rlocus.py:24:1: 'numpy.array' imported but unused
control/rlocus.py:24:1: 'numpy.imag' imported but unused
control/rlocus.py:24:1: 'numpy.real' imported but unused
control/rlocus.py:29:1: '.iosys.isdtime' imported but unused
control/rlocus.py:465:40: undefined name 'prevrow'
control/rlocus.py:467:32: undefined name 'prevrow'
control/rlocus.py:471:9: local variable 'prevrow' is assigned to but never used
control/lti.py:10:1: 'numpy.angle' imported but unused
control/canonical.py:11:1: 'numpy.zeros' imported but unused
control/canonical.py:11:1: 'numpy.shape' imported but unused
control/canonical.py:11:1: 'numpy.iscomplex' imported but unused
control/canonical.py:11:1: 'numpy.vstack' imported but unused
control/canonical.py:11:1: 'numpy.hstack' imported but unused
control/canonical.py:11:1: 'numpy.empty' imported but unused
control/canonical.py:11:1: 'numpy.finfo' imported but unused
control/canonical.py:11:1: 'numpy.float64' imported but unused
control/canonical.py:13:1: 'numpy.linalg.eig' imported but unused
control/dtime.py:51:1: '.statesp.StateSpace' imported but unused
control/sysnorm.py:15:1: 'scipy as sp' imported but unused
control/xferfcn.py:25:1: 'numpy.angle' imported but unused
control/xferfcn.py:25:1: 'numpy.float64' imported but unused
control/xferfcn.py:25:1: 'numpy.pi' imported but unused
control/xferfcn.py:34:1: '.iosys.isdtime' imported but unused
control/xferfcn.py:221:17: import 'poly' from line 25 shadowed by loop variable
control/xferfcn.py:1242:21: import 'poly' from line 25 shadowed by loop variable
control/xferfcn.py:1462:5: local variable 'kwargs' is assigned to but never used
control/frdata.py:18:1: 'numpy.angle' imported but unused
control/frdata.py:18:1: 'numpy.where' imported but unused
control/optimal.py:26:1: '.exception.ControlNotImplemented' imported but unused
control/optimal.py:27:1: '.iosys._process_indices' imported but unused
control/optimal.py:166:56: undefined name 'method'
control/optimal.py:1109:26: undefined name 'optimal_methods'
control/timeplot.py:14:1: 'matplotlib as mpl' imported but unused
control/timeplot.py:181:5: '.iosys.InputOutputSystem' imported but unused
control/timeplot.py:182:5: '.timeresp.TimeResponseData' imported but unused
control/exception.py:74:13: 'slycot' imported but unused
control/exception.py:88:13: 'pandas' imported but unused
control/exception.py:101:13: 'cvxopt' imported but unused
control/robust.py:45:1: 'from .exception import *' used; unable to detect undefined names
control/robust.py:47:1: 'from .statefbk import *' used; unable to detect undefined names
control/robust.py:106:5: local variable 'dico' is assigned to but never used
control/robust.py:111:15: 'ControlSlycot' may be undefined, or defined from star imports: .exception, .statefbk
control/robust.py:194:5: local variable 'dico' is assigned to but never used
control/robust.py:199:15: 'ControlSlycot' may be undefined, or defined from star imports: .exception, .statefbk
control/tests/timeplot_test.py:10:1: 'control.tests.conftest.mplcleanup' imported but unused
control/tests/timeplot_test.py:318:9: local variable 'combresp' is assigned to but never used
control/tests/timeplot_test.py:424:13: local variable 'shape' is assigned to but never used
control/tests/descfcn_test.py:213:9: local variable 'bias' is assigned to but never used
control/tests/descfcn_test.py:239:9: local variable 'cplt' is assigned to but never used
control/tests/bspline_test.py:14:1: 'scipy as sp' imported but unused
control/tests/bspline_test.py:18:1: 'control.optimal as opt' imported but unused
control/tests/bspline_test.py:221:9: local variable 'basis' is assigned to but never used
control/tests/matlab_test.py:139:9: local variable 'sys1' is assigned to but never used
control/tests/matlab_test.py:149:9: local variable 'sys1' is assigned to but never used
control/tests/matlab_test.py:159:9: local variable 'sys1' is assigned to but never used
control/tests/matlab_test.py:588:9: local variable 'unwrapped' is assigned to but never used
control/tests/xferfcn_test.py:1125:9: local variable 'array' is assigned to but never used
control/tests/trdata_test.py:217:9: local variable 'response_bad_kw' is assigned to but never used
control/tests/freqplot_test.py:10:1: 'control.tests.conftest.editsdefaults' imported but unused
control/tests/freqplot_test.py:10:1: 'control.tests.conftest.slycotonly' imported but unused
control/tests/freqplot_test.py:169:5: local variable 'lines_default' is assigned to but never used
control/tests/frd_test.py:6:1: 'sys as pysys' imported but unused
control/tests/frd_test.py:16:1: 'control.evalfr' imported but unused
control/tests/frd_test.py:186:9: local variable 'h2' is assigned to but never used
control/tests/frd_test.py:320:9: local variable 'chkpts' is assigned to but never used
control/tests/frd_test.py:343:13: local variable 'sys' is assigned to but never used
control/tests/frd_test.py:360:13: local variable 'sys' is assigned to but never used
control/tests/frd_test.py:532:13: local variable 'sys' is assigned to but never used
control/tests/nyquist_test.py:439:9: local variable 'response' is assigned to but never used
control/tests/nyquist_test.py:515:5: local variable 'cplt' is assigned to but never used
control/tests/nyquist_test.py:551:5: redefinition of unused 'indentsys' from line 277
control/tests/iosys_test.py:1415:13: local variable 'PC' is assigned to but never used
control/tests/iosys_test.py:1749:16: local variable 'record' is assigned to but never used
control/tests/iosys_test.py:1757:9: local variable 'h' is assigned to but never used
control/tests/iosys_test.py:1782:70: local variable 'record' is assigned to but never used
control/tests/iosys_test.py:1827:9: local variable 'h' is assigned to but never used
control/tests/iosys_test.py:1903:9: local variable 'resp_short' is assigned to but never used
control/tests/iosys_test.py:1907:9: local variable 'resp_bad' is assigned to but never used
control/tests/bdalg_test.py:365:9: local variable 'sys' is assigned to but never used
control/tests/stochsys_test.py:9:1: 'control.drss' imported but unused
control/tests/stochsys_test.py:9:1: 'control.ss' imported but unused
control/tests/stochsys_test.py:228:5: local variable 'P0' is assigned to but never used
control/tests/stochsys_test.py:247:9: local variable 'estim' is assigned to but never used
control/tests/stochsys_test.py:429:5: local variable 'W' is assigned to but never used
control/tests/stochsys_test.py:481:5: 'math.log' imported but unused
control/tests/docstrings_test.py:432:5: local variable 'docstring' is assigned to but never used
control/tests/namedio_test.py:11:1: 're' imported but unused
control/tests/namedio_test.py:296:9: local variable 'res' is assigned to but never used
control/tests/namedio_test.py:338:9: local variable 'sys' is assigned to but never used
control/tests/flatsys_test.py:522:9: local variable 'T' is assigned to but never used
control/tests/flatsys_test.py:632:9: local variable 'T' is assigned to but never used
control/tests/rlocus_test.py:137:9: undefined name '_RLClickDispatcher'
control/tests/rlocus_test.py:164:9: 'signal' imported but unused
control/tests/pzmap_test.py:114:9: local variable 'pzdata' is assigned to but never used
control/tests/pzmap_test.py:117:9: local variable 'fig' is assigned to but never used
control/tests/interconnect_test.py:18:1: 'scipy as sp' imported but unused
control/tests/interconnect_test.py:57:9: local variable 'sumblk' is assigned to but never used
control/tests/interconnect_test.py:349:9: local variable 'nlios' is assigned to but never used
control/tests/optimal_test.py:84:5: local variable 't' is assigned to but never used
control/tests/optimal_test.py:189:5: local variable 'yd' is assigned to but never used
control/tests/optimal_test.py:267:9: local variable 'ctrl' is assigned to but never used
control/tests/optimal_test.py:318:5: local variable 't' is assigned to but never used
control/tests/optimal_test.py:419:9: local variable 't' is assigned to but never used
control/tests/optimal_test.py:451:9: local variable 'res' is assigned to but never used
control/tests/optimal_test.py:558:9: local variable 'res' is assigned to but never used
control/tests/optimal_test.py:652:5: local variable 't' is assigned to but never used
control/tests/optimal_test.py:736:9: local variable 'curved_seg_length' is assigned to but never used
control/tests/optimal_test.py:797:9: local variable 'res' is assigned to but never used
control/tests/optimal_test.py:810:9: local variable 'mhe' is assigned to but never used
control/tests/modelsimp_test.py:6:1: 'math' imported but unused
control/tests/modelsimp_test.py:126:9: local variable 'mrk' is assigned to but never used
control/tests/conftest.py:3:1: 'os' imported but unused
control/tests/conftest.py:4:1: 'contextlib.contextmanager' imported but unused
control/tests/conftest.py:7:1: 'numpy as np' imported but unused
control/tests/lti_test.py:15:1: '.conftest.editsdefaults' imported but unused
control/tests/lti_test.py:32:13: local variable 'pole_list' is assigned to but never used
control/tests/lti_test.py:47:13: local variable 'zero_list' is assigned to but never used
control/tests/lti_test.py:298:13: local variable 'resp' is assigned to but never used
control/tests/phaseplot_test.py:22:1: 'control.tests.conftest.mplcleanup' imported but unused
control/tests/phaseplot_test.py:130:5: local variable 'out' is assigned to but never used
control/tests/timeresp_test.py:8:1: 'scipy as sp' imported but unused
control/tests/timeresp_test.py:1181:9: local variable 'uvec' is assigned to but never used
control/tests/timeresp_test.py:1306:9: local variable 'df' is assigned to but never used
control/tests/statesp_test.py:25:1: '.conftest.editsdefaults' imported but unused
control/tests/statesp_test.py:147:50: local variable 'w' is assigned to but never used
control/tests/statesp_test.py:754:9: local variable 'array' is assigned to but never used
control/tests/statesp_test.py:1101:66: redefinition of unused 'editsdefaults' from line 25
control/tests/statesp_test.py:1144:29: redefinition of unused 'editsdefaults' from line 25
control/tests/kwargs_test.py:16:1: 'matplotlib.pyplot as plt' imported but unused
control/tests/kwargs_test.py:110:53: undefined name 'np'
control/tests/kwargs_test.py:326:5: dictionary key 'StateSpace.__init__' repeated with different values
control/tests/kwargs_test.py:331:5: dictionary key 'StateSpace.__init__' repeated with different values
control/tests/nlsys_test.py:101:9: local variable 'resp_nl' is assigned to but never used
control/tests/config_test.py:336:9: '..statesp.StateSpace' imported but unused
control/tests/config_test.py:337:9: 'numpy.array' imported but unused
control/tests/discrete_test.py:267:9: local variable 'sys' is assigned to but never used
control/tests/discrete_test.py:304:9: local variable 'sys' is assigned to but never used
control/tests/discrete_test.py:343:9: local variable 'sys' is assigned to but never used
control/tests/discrete_test.py:423:13: local variable 'plant_d_warped' is assigned to but never used
control/tests/statefbk_test.py:10:1: 'math.atan' imported but unused
control/tests/statefbk_test.py:13:1: 'control.lqe' imported but unused
control/tests/statefbk_test.py:13:1: 'control.dlqe' imported but unused
control/tests/statefbk_test.py:823:13: local variable 'Ki' is assigned to but never used
control/tests/statefbk_test.py:938:1: redefinition of unused 'pi' from line 10
control/tests/statefbk_test.py:1204:5: local variable 'points' is assigned to but never used
control/tests/ctrlplot_test.py:77:13: local variable 'default_labels' is assigned to but never used
control/tests/ctrlplot_test.py:240:9: local variable 'cplt4' is assigned to but never used
control/tests/ctrlplot_test.py:330:5: local variable 'sys1' is assigned to but never used
control/tests/ctrlplot_test.py:331:5: local variable 'sys1c' is assigned to but never used
control/tests/ctrlplot_test.py:332:5: local variable 'sys2' is assigned to but never used
control/tests/ctrlplot_test.py:338:5: local variable 'expected_labels' is assigned to but never used
control/tests/ctrlplot_test.py:341:13: local variable 'default_labels' is assigned to but never used
control/tests/ctrlplot_test.py:490:5: local variable 'sys1' is assigned to but never used
control/tests/ctrlplot_test.py:491:5: local variable 'sys1c' is assigned to but never used
control/tests/ctrlplot_test.py:492:5: local variable 'sys2' is assigned to but never used
control/tests/ctrlplot_test.py:498:5: local variable 'expected_title' is assigned to but never used
control/tests/ctrlplot_test.py:534:52: undefined name 'resp_fnc'
control/tests/ctrlplot_test.py:534:64: undefined name 'plot_fnc'
control/tests/ctrlplot_test.py:585:14: local variable 'bot_row' is assigned to but never used
control/tests/ctrlplot_test.py:589:13: local variable 'top_row' is assigned to but never used
control/tests/ctrlplot_test.py:624:5: local variable 'sys1' is assigned to but never used
control/tests/ctrlplot_test.py:625:5: local variable 'sys1c' is assigned to but never used
control/tests/ctrlplot_test.py:626:5: local variable 'sys2' is assigned to but never used
control/tests/ctrlplot_test.py:632:5: local variable 'expected_title' is assigned to but never used
control/tests/ctrlplot_test.py:635:13: local variable 'default_title' is assigned to but never used
control/matlab/__init__.py:54:1: 'scipy.signal.zpk2ss' imported but unused
control/matlab/__init__.py:54:1: 'scipy.signal.ss2zpk' imported but unused
control/matlab/__init__.py:54:1: 'scipy.signal.tf2zpk' imported but unused
control/matlab/__init__.py:54:1: 'scipy.signal.zpk2tf' imported but unused
control/matlab/__init__.py:55:1: 'numpy.linspace' imported but unused
control/matlab/__init__.py:55:1: 'numpy.logspace' imported but unused
control/matlab/__init__.py:64:1: 'from ..statesp import *' used; unable to detect undefined names
control/matlab/__init__.py:65:1: 'from ..xferfcn import *' used; unable to detect undefined names
control/matlab/__init__.py:66:1: 'from ..lti import *' used; unable to detect undefined names
control/matlab/__init__.py:67:1: 'from ..iosys import *' used; unable to detect undefined names
control/matlab/__init__.py:68:1: 'from ..frdata import *' used; unable to detect undefined names
control/matlab/__init__.py:69:1: 'from ..dtime import *' used; unable to detect undefined names
control/matlab/__init__.py:70:1: '..exception.ControlArgument' imported but unused
control/matlab/__init__.py:73:1: 'from ..ctrlutil import *' used; unable to detect undefined names
control/matlab/__init__.py:74:1: '..freqplot.gangof4' imported but unused
control/matlab/__init__.py:75:1: '..nichols.nichols' imported but unused
control/matlab/__init__.py:76:1: 'from ..bdalg import *' used; unable to detect undefined names
control/matlab/__init__.py:77:1: 'from ..pzmap import *' used; unable to detect undefined names
control/matlab/__init__.py:78:1: 'from ..statefbk import *' used; unable to detect undefined names
control/matlab/__init__.py:79:1: 'from ..delay import *' used; unable to detect undefined names
control/matlab/__init__.py:80:1: 'from ..modelsimp import *' used; unable to detect undefined names
control/matlab/__init__.py:81:1: 'from ..mateqn import *' used; unable to detect undefined names
control/matlab/__init__.py:82:1: '..margins.margin' imported but unused
control/matlab/__init__.py:83:1: '..rlocus.rlocus' imported but unused
control/matlab/__init__.py:84:1: '..dtime.c2d' imported but unused
control/matlab/__init__.py:85:1: '..sisotool.sisotool' imported but unused
control/matlab/__init__.py:86:1: '..stochsys.lqe' imported but unused
control/matlab/__init__.py:86:1: '..stochsys.dlqe' imported but unused
control/matlab/__init__.py:90:14: 'poles' may be undefined, or defined from star imports: ..bdalg, ..ctrlutil, ..delay, ..dtime, ..frdata, ..iosys, ..lti, ..mateqn, ..modelsimp, ..pzmap, ..statefbk, ..statesp, ..xferfcn
control/matlab/__init__.py:90:21: 'zeros' may be undefined, or defined from star imports: ..bdalg, ..ctrlutil, ..delay, ..dtime, ..frdata, ..iosys, ..lti, ..mateqn, ..modelsimp, ..pzmap, ..statefbk, ..statesp, ..xferfcn
control/matlab/__init__.py:91:12: 'frequency_response' may be undefined, or defined from star imports: ..bdalg, ..ctrlutil, ..delay, ..dtime, ..frdata, ..iosys, ..lti, ..mateqn, ..modelsimp, ..pzmap, ..statefbk, ..statesp, ..xferfcn
control/matlab/__init__.py:95:1: 'from .timeresp import *' used; unable to detect undefined names
control/matlab/__init__.py:96:1: 'from .wrappers import *' used; unable to detect undefined names
control/matlab/__init__.py:99:1: 'from ..config import *' used; unable to detect undefined names
control/matlab/__init__.py:100:1: 'use_matlab_defaults' may be undefined, or defined from star imports: ..bdalg, ..config, ..ctrlutil, ..delay, ..dtime, ..frdata, ..iosys, ..lti, ..mateqn, ..modelsimp, ..pzmap, ..statefbk, ..statesp, ..xferfcn, .timeresp, .wrappers
control/flatsys/bspline.py:11:1: 'scipy.interpolate.splev' imported but unused
control/flatsys/__init__.py:64:1: '.basis.BasisFamily' imported but unused
control/flatsys/__init__.py:65:1: '.poly.PolyFamily' imported but unused
control/flatsys/__init__.py:66:1: '.bezier.BezierFamily' imported but unused
control/flatsys/__init__.py:67:1: '.bspline.BSplineFamily' imported but unused
control/flatsys/__init__.py:70:1: '.systraj.SystemTrajectory' imported but unused
control/flatsys/__init__.py:71:1: '.flatsys.FlatSystem' imported but unused
control/flatsys/__init__.py:71:1: '.flatsys.flatsys' imported but unused
control/flatsys/__init__.py:72:1: '.linflat.LinearFlatSystem' imported but unused
control/flatsys/__init__.py:75:1: '.flatsys.point_to_point' imported but unused
control/flatsys/__init__.py:75:1: '.flatsys.solve_flat_ocp' imported but unused
control/flatsys/flatsys.py:248:5: '..iosys._process_iosys_keywords' imported but unused
control/flatsys/flatsys.py:486:19: undefined name 'ControlArgument'
control/flatsys/flatsys.py:520:13: redefinition of unused 'traj_cost' from line 499
control/flatsys/flatsys.py:724:5: local variable 'Tf' is assigned to but never used
control/flatsys/flatsys.py:725:46: undefined name 'T0'