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1 # -*- coding: utf-8 -*- |
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2 |
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3 # Copyright (c) 2021 Detlev Offenbach <detlev@die-offenbachs.de> |
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4 # |
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5 |
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6 """ |
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7 Module implementing the device interface class for generic MicroPython devices |
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8 (i.e. those devices not specifically supported yet). |
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9 """ |
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10 |
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11 import os |
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12 |
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13 from E5Gui import E5MessageBox |
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14 |
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15 from .MicroPythonDevices import MicroPythonDevice |
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16 from .MicroPythonWidget import HAS_QTCHART |
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17 |
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18 import Preferences |
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19 import Utilities |
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20 |
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21 |
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22 class GenericMicroPythonDevice(MicroPythonDevice): |
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23 """ |
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24 Class implementing the device interface for generic MicroPython boards. |
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25 """ |
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26 def __init__(self, microPythonWidget, deviceType, vid, pid, parent=None): |
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27 """ |
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28 Constructor |
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29 |
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30 @param microPythonWidget reference to the main MicroPython widget |
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31 @type MicroPythonWidget |
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32 @param deviceType device type assigned to this device interface |
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33 @type str |
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34 @param vid vendor ID |
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35 @type int |
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36 @param pid product ID |
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37 @type int |
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38 @param parent reference to the parent object |
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39 @type QObject |
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40 """ |
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41 super().__init__( |
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42 microPythonWidget, deviceType, parent) |
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43 |
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44 self.__directAccess = False |
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45 self.__deviceVolumeName = "" |
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46 self.__workspace = "" |
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47 self.__deviceName = "" |
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48 |
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49 for deviceData in Preferences.getMicroPython("ManualDevices"): |
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50 if ( |
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51 deviceData["vid"] == vid and |
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52 deviceData["pid"] == pid |
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53 ): |
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54 self.__deviceVolumeName = deviceData["data_volume"] |
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55 self.__directAccess = bool(deviceData["data_volume"]) |
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56 self.__deviceName = deviceData["description"] |
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57 |
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58 if self.__directAccess: |
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59 self.__workspace = self.__findWorkspace() |
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60 |
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61 def setButtons(self): |
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62 """ |
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63 Public method to enable the supported action buttons. |
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64 """ |
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65 super().setButtons() |
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66 self.microPython.setActionButtons( |
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67 run=True, repl=True, files=True, chart=HAS_QTCHART) |
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68 |
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69 if self.__directAccess and self.__deviceVolumeMounted(): |
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70 self.microPython.setActionButtons(open=True, save=True) |
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71 |
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72 def deviceName(self): |
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73 """ |
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74 Public method to get the name of the device. |
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75 |
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76 @return name of the device |
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77 @rtype str |
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78 """ |
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79 return self.__deviceName |
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80 |
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81 def canStartRepl(self): |
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82 """ |
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83 Public method to determine, if a REPL can be started. |
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84 |
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85 @return tuple containing a flag indicating it is safe to start a REPL |
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86 and a reason why it cannot. |
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87 @rtype tuple of (bool, str) |
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88 """ |
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89 return True, "" |
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90 |
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91 def canStartPlotter(self): |
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92 """ |
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93 Public method to determine, if a Plotter can be started. |
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94 |
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95 @return tuple containing a flag indicating it is safe to start a |
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96 Plotter and a reason why it cannot. |
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97 @rtype tuple of (bool, str) |
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98 """ |
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99 return True, "" |
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100 |
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101 def canRunScript(self): |
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102 """ |
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103 Public method to determine, if a script can be executed. |
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104 |
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105 @return tuple containing a flag indicating it is safe to start a |
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106 Plotter and a reason why it cannot. |
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107 @rtype tuple of (bool, str) |
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108 """ |
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109 return True, "" |
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110 |
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111 def runScript(self, script): |
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112 """ |
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113 Public method to run the given Python script. |
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114 |
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115 @param script script to be executed |
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116 @type str |
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117 """ |
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118 pythonScript = script.split("\n") |
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119 self.sendCommands(pythonScript) |
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120 |
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121 def canStartFileManager(self): |
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122 """ |
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123 Public method to determine, if a File Manager can be started. |
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124 |
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125 @return tuple containing a flag indicating it is safe to start a |
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126 File Manager and a reason why it cannot. |
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127 @rtype tuple of (bool, str) |
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128 """ |
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129 return True, "" |
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130 |
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131 def supportsLocalFileAccess(self): |
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132 """ |
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133 Public method to indicate file access via a local directory. |
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134 |
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135 @return flag indicating file access via local directory |
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136 @rtype bool |
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137 """ |
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138 return self.__deviceVolumeMounted() |
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139 |
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140 def __deviceVolumeMounted(self): |
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141 """ |
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142 Private method to check, if the device volume is mounted. |
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143 |
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144 @return flag indicated a mounted device |
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145 @rtype bool |
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146 """ |
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147 if self.__workspace and not os.path.exists(self.__workspace): |
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148 self.__workspace = "" # reset |
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149 |
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150 return ( |
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151 self.__directAccess and |
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152 self.__deviceVolumeName in self.getWorkspace(silent=True) |
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153 ) |
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154 |
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155 def getWorkspace(self, silent=False): |
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156 """ |
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157 Public method to get the workspace directory. |
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158 |
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159 @param silent flag indicating silent operations |
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160 @type bool |
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161 @return workspace directory used for saving files |
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162 @rtype str |
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163 """ |
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164 if self.__directAccess: |
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165 if self.__workspace: |
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166 # return cached entry |
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167 return self.__workspace |
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168 else: |
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169 self.__workspace = self.__findWorkspace(silent=silent) |
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170 return self.__workspace |
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171 else: |
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172 return super().getWorkspace() |
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173 |
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174 def __findWorkspace(self, silent=False): |
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175 """ |
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176 Private method to find the workspace directory. |
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177 |
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178 @param silent flag indicating silent operations |
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179 @type bool |
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180 @return workspace directory used for saving files |
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181 @rtype str |
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182 """ |
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183 # Attempts to find the path on the filesystem that represents the |
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184 # plugged in board. |
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185 deviceDirectories = Utilities.findVolume(self.__deviceVolumeName, |
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186 findAll=True) |
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187 |
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188 if deviceDirectories: |
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189 if len(deviceDirectories) == 1: |
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190 return deviceDirectories[0] |
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191 else: |
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192 return self.selectDeviceDirectory(deviceDirectories) |
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193 else: |
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194 # return the default workspace and give the user a warning (unless |
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195 # silent mode is selected) |
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196 if not silent: |
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197 E5MessageBox.warning( |
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198 self.microPython, |
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199 self.tr("Workspace Directory"), |
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200 self.tr("Python files for this generic board can be" |
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201 " edited in place, if the device volume is locally" |
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202 " available. A volume named '{0}' was not found." |
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203 " In place editing will not be available." |
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204 ).format(self.__deviceVolumeName) |
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205 ) |
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206 |
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207 return super().getWorkspace() |