Pcbnew: Python scripting support clean up.
Always check the return value of PyRun_SimpleString() for errors when a Python script is run and show an error message rather than fail silently. Enable Python interpreter I/O redirection in debug builds so that script string errors will be shown when PyRun_SimpleString() is called. Do not call PyErr_Print() after a PyRun_SimpleString() call failure. It doesn't do anything useful. Do not call Py_Finalize() after a PyRun_SimpleString() call failure. It seems to cause Pcbnew to crash.
This commit is contained in:
Wayne Stambaugh
parent
4ae5a006d0
commit
816f6db310
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@ -315,7 +315,10 @@ void PythonPluginsReloadBase()
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// ReRun the Python method pcbnew.LoadPlugins
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// (already called when starting Pcbnew)
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PyRun_SimpleString( cmd );
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int retv = PyRun_SimpleString( cmd );
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if( retv != 0 )
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wxLogError( "Python error %d occurred running command:\n\n`%s`", retv, cmd );
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#endif
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}
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@ -2,7 +2,7 @@
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 2012 NBEE Embedded Systems, Miguel Angel Ajo <miguelangel@nbee.es>
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* Copyright (C) 1992-2018 KiCad Developers, see AUTHORS.txt for contributors.
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* Copyright (C) 1992-2019 KiCad Developers, see AUTHORS.txt for contributors.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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@ -62,7 +62,9 @@ extern "C" void init_pcbnew( void );
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struct _inittab* SwigImportInittab;
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static int SwigNumModules = 0;
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static bool wxPythonLoaded = false; // true if the wxPython scripting layer was successfully loaded
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/// True if the wxPython scripting layer was successfully loaded.
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static bool wxPythonLoaded = false;
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bool IsWxPythonLoaded()
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{
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@ -70,7 +72,9 @@ bool IsWxPythonLoaded()
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}
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/* Add a name + initfuction to our SwigImportInittab */
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/**
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* Add a name + initfuction to our SwigImportInittab
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*/
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#if PY_MAJOR_VERSION >= 3
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static void swigAddModule( const char* name, PyObject* (* initfunc)() )
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@ -86,8 +90,9 @@ static void swigAddModule( const char* name, void (* initfunc)() )
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}
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/* Add the builtin python modules */
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/**
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* Add the builtin python modules
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*/
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static void swigAddBuiltin()
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{
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int i = 0;
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@ -111,12 +116,9 @@ static void swigAddBuiltin()
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}
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/* Function swigAddModules
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* adds the internal modules we offer to the python scripting, so they will be
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* available to the scripts we run.
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*
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/**
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* Add the internal modules to the python scripting so they will be available to the scripts.
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*/
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static void swigAddModules()
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{
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#if PY_MAJOR_VERSION >= 3
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@ -132,27 +134,28 @@ static void swigAddModules()
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}
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/* Function swigSwitchPythonBuiltin
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* switches python module table to our built one .
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*
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/**
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* Switch the python module table to the Pcbnew built one.
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*/
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static void swigSwitchPythonBuiltin()
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{
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PyImport_Inittab = SwigImportInittab;
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}
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/* Function pcbnewInitPythonScripting
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* Initializes all the python environment and publish our interface inside it
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* initializes all the wxpython interface, and returns the python thread control structure
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*
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*/
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PyThreadState* g_PythonMainTState;
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/**
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* Initialize the python environment and publish the Pcbnew interface inside it.
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*
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* This initializes all the wxPython interface and returns the python thread control structure
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*/
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bool pcbnewInitPythonScripting( const char * aUserScriptingPath )
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{
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int retv;
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char cmd[1024];
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swigAddBuiltin(); // add builtin functions
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swigAddModules(); // add our own modules
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swigSwitchPythonBuiltin(); // switch the python builtin modules to our new list
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@ -165,19 +168,16 @@ bool pcbnewInitPythonScripting( const char * aUserScriptingPath )
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#ifndef KICAD_SCRIPTING_WXPYTHON_PHOENIX
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#ifndef __WINDOWS__ // import wxversion.py currently not working under winbuilder, and not useful.
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char cmd[1024];
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// Make sure that that the correct version of wxPython is loaded. In systems where there
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// are different versions of wxPython installed this can lead to select wrong wxPython
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// version being selected.
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snprintf( cmd, sizeof( cmd ), "import wxversion; wxversion.select( '%s' )", WXPYTHON_VERSION );
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int retv = PyRun_SimpleString( cmd );
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retv = PyRun_SimpleString( cmd );
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if( retv != 0 )
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{
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wxLogError( wxT( "Python error %d occurred running string `%s`" ), retv, cmd );
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PyErr_Print();
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Py_Finalize();
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wxLogError( "Python error %d occurred running command:\n\n`%s`", retv, cmd );
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return false;
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}
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#endif // ifndef __WINDOWS__
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@ -187,13 +187,17 @@ bool pcbnewInitPythonScripting( const char * aUserScriptingPath )
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// internally by the rest of the API functions.
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if( !wxPyCoreAPI_IMPORT() )
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{
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wxLogError( wxT( "***** Error importing the wxPython API! *****" ) );
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wxLogError( "***** Error importing the wxPython API! *****" );
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PyErr_Print();
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Py_Finalize();
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return false;
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}
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#endif
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#if defined( DEBUG )
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RedirectStdio();
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#endif
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wxPythonLoaded = true;
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// Save the current Python thread state and release the
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@ -202,15 +206,18 @@ bool pcbnewInitPythonScripting( const char * aUserScriptingPath )
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#endif // ifdef KICAD_SCRIPTING_WXPYTHON
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// load pcbnew inside python, and load all the user plugins, TODO: add system wide plugins
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// Load pcbnew inside Python and load all the user plugins, TODO: add system wide plugins
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{
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char loadCmd[1024];
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PyLOCK lock;
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snprintf( loadCmd, sizeof(loadCmd), "import sys, traceback\n"
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snprintf( cmd, sizeof( cmd ), "import sys, traceback\n"
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"sys.path.append(\".\")\n"
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"import pcbnew\n"
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"pcbnew.LoadPlugins(\"%s\")", aUserScriptingPath );
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PyRun_SimpleString( loadCmd );
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retv = PyRun_SimpleString( cmd );
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if( retv != 0 )
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wxLogError( "Python error %d occurred running command:\n\n`%s`", retv, cmd );
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}
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return true;
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@ -218,9 +225,10 @@ bool pcbnewInitPythonScripting( const char * aUserScriptingPath )
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/**
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* this function runs a python method from pcbnew module, which returns a string
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* Run a python method from the pcbnew module.
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*
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* @param aMethodName is the name of the method (like "pcbnew.myfunction" )
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* @param aNames will contains the returned string
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* @param aNames will contain the returned string
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*/
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static void pcbnewRunPythonMethodWithReturnedString( const char* aMethodName, wxString& aNames )
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{
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@ -253,9 +261,11 @@ static void pcbnewRunPythonMethodWithReturnedString( const char* aMethodName, wx
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PyObject* str = PyDict_GetItemString(localDict, "result" );
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#if PY_MAJOR_VERSION >= 3
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const char* str_res = NULL;
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if(str)
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{
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PyObject* temp_bytes = PyUnicode_AsEncodedString( str, "UTF-8", "strict" );
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if( temp_bytes != NULL )
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{
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str_res = PyBytes_AS_STRING( temp_bytes );
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@ -292,6 +302,7 @@ void pcbnewGetScriptsSearchPaths( wxString& aNames )
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pcbnewRunPythonMethodWithReturnedString( "pcbnew.GetWizardsSearchPaths", aNames );
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}
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void pcbnewGetWizardsBackTrace( wxString& aNames )
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{
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pcbnewRunPythonMethodWithReturnedString( "pcbnew.GetWizardsBackTrace", aNames );
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@ -308,7 +319,6 @@ void pcbnewFinishPythonScripting()
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#if defined( KICAD_SCRIPTING_WXPYTHON )
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void RedirectStdio()
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{
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// This is a helpful little tidbit to help debugging and such. It
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@ -322,7 +332,10 @@ void RedirectStdio()
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PyLOCK lock;
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PyRun_SimpleString( python_redirect );
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int retv = PyRun_SimpleString( python_redirect );
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if( retv != 0 )
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wxLogError( "Python error %d occurred running command:\n\n`%s`", retv, python_redirect );
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}
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@ -370,7 +383,8 @@ wxWindow* CreatePythonShellWindow( wxWindow* parent, const wxString& aFramenameI
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auto app_ptr = wxTheApp;
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#endif
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// Execute the code to make the makeWindow function we defined above
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PyObject* result = PyRun_String( pcbnew_pyshell_one_step.str().c_str(), Py_file_input, globals, globals );
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PyObject* result = PyRun_String( pcbnew_pyshell_one_step.str().c_str(), Py_file_input,
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globals, globals );
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#ifdef KICAD_SCRIPTING_WXPYTHON_PHOENIX
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// This absolutely ugly hack is to work around the pyshell re-writing the global
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@ -420,10 +434,9 @@ wxWindow* CreatePythonShellWindow( wxWindow* parent, const wxString& aFramenameI
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return window;
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}
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#endif
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wxString PyStringToWx( PyObject* aString )
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{
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wxString ret;
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@ -434,6 +447,7 @@ wxString PyStringToWx( PyObject* aString )
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#if PY_MAJOR_VERSION >= 3
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const char* str_res = NULL;
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PyObject* temp_bytes = PyUnicode_AsEncodedString( aString, "UTF-8", "strict" );
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if( temp_bytes != NULL )
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{
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str_res = PyBytes_AS_STRING( temp_bytes );
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@ -471,6 +485,7 @@ wxArrayString PyArrayStringToWx( PyObject* aArrayString )
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#if PY_MAJOR_VERSION >= 3
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const char* str_res = NULL;
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PyObject* temp_bytes = PyUnicode_AsEncodedString( element, "UTF-8", "strict" );
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if( temp_bytes != NULL )
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{
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str_res = PyBytes_AS_STRING( temp_bytes );
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@ -505,6 +520,7 @@ wxString PyErrStringWithTraceback()
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PyErr_Fetch( &type, &value, &traceback );
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PyErr_NormalizeException( &type, &value, &traceback );
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if( traceback == NULL )
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{
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traceback = Py_None;
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@ -545,14 +561,15 @@ wxString PyErrStringWithTraceback()
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return err;
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}
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/**
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* Find the Python scripting path
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* Find the Python scripting path.
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*/
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wxString PyScriptingPath()
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{
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wxString path;
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//TODO should this be a user configurable variable eg KISCRIPT ?
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//@todo This should this be a user configurable variable eg KISCRIPT?
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#if defined( __WXMAC__ )
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path = GetOSXKicadDataDir() + wxT( "/scripting" );
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#else
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@ -571,6 +588,7 @@ wxString PyScriptingPath()
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return path;
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}
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wxString PyPluginsPath()
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{
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// Note we are using unix path separator, because window separator sometimes
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@ -1,7 +1,7 @@
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/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 1992-2016 KiCad Developers, see AUTHORS.txt for contributors.
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* Copyright (C) 1992-2019 KiCad Developers, see AUTHORS.txt for contributors.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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@ -50,31 +50,30 @@
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#include <wx/string.h>
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#include <wx/arrstr.h>
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/**
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* Function pcbnewInitPythonScripting
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* Initializes the Python engine inside pcbnew
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* Initialize the Python engine inside pcbnew.
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*/
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bool pcbnewInitPythonScripting( const char * aUserScriptingPath );
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void pcbnewFinishPythonScripting();
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/**
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* Function pcbnewGetUnloadableScriptNames
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* collects the list of python scripts which could not be loaded because
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* some error (synthax error) happened
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* Collect the list of python scripts which could not be loaded.
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*
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* @param aNames is a wxString which will contain the filenames (separated by '\n')
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*/
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void pcbnewGetUnloadableScriptNames( wxString& aNames );
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/**
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* Function pcbnewGetScriptsSearchPaths
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* collects the list of paths where python scripts are searched
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* Collect the list of paths where python scripts are searched.
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*
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* @param aNames is a wxString which will contain the paths (separated by '\n')
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*/
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void pcbnewGetScriptsSearchPaths( wxString& aNames );
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/**
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* Function pcbnewGetWizardsBackTrace
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* returns the backtrace of errors (if any) when wizard python scripts are loaded
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* Return the backtrace of errors (if any) when wizard python scripts are loaded.
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*
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* @param aNames is a wxString which will contain the trace
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*/
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void pcbnewGetWizardsBackTrace( wxString& aNames );
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@ -84,7 +83,6 @@ void RedirectStdio();
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wxWindow* CreatePythonShellWindow( wxWindow* parent, const wxString& aFramenameId );
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#endif
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#if 0 && defined (KICAD_SCRIPTING_WXPYTHON)
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// This definition of PyLOCK crashed Pcbnew under some conditions (JPC),
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// especially reloading plugins
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@ -98,8 +96,6 @@ public:
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PyLOCK() { b = wxPyBeginBlockThreads(); }
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~PyLOCK() { wxPyEndBlockThreads( b ); }
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};
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#else
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class PyLOCK
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{
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@ -108,7 +104,6 @@ public:
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PyLOCK() { gil_state = PyGILState_Ensure(); }
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~PyLOCK() { PyGILState_Release( gil_state ); }
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};
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#endif
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wxString PyStringToWx( PyObject* str );
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