Mercurial > libervia-backend

annotate libervia/cli/cmd_application.py @ 4270:0d7bb4df2343

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Reformatted code base using black.
author Goffi <goffi@goffi.org>
date Wed, 19 Jun 2024 18:44:57 +0200
parents 47401850dec6
children
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1 #!/usr/bin/env python3
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2
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3 # Libervia CLI
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4 # Copyright (C) 2009-2021 Jérôme Poisson (goffi@goffi.org)
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5
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6 # This program is free software: you can redistribute it and/or modify
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7 # it under the terms of the GNU Affero General Public License as published by
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8 # the Free Software Foundation, either version 3 of the License, or
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9 # (at your option) any later version.
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10
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11 # This program is distributed in the hope that it will be useful,
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12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 # GNU Affero General Public License for more details.
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15
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16 # You should have received a copy of the GNU Affero General Public License
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17 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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18
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19 from . import base
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20 from libervia.backend.core.i18n import _
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21 from libervia.backend.tools.common import data_format
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22 from libervia.cli.constants import Const as C
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23
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24 __commands__ = ["Application"]
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25
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26
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27 class List(base.CommandBase):
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28 """List available applications"""
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29
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30 def __init__(self, host):
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31 super(List, self).__init__(
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32 host,
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33 "list",
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34 use_profile=False,
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35 use_output=C.OUTPUT_LIST,
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36 help=_("list available applications"),
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37 )
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38
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39 def add_parser_options(self):
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40 # FIXME: "extend" would be better here, but it's only available from Python 3.8+
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41 # so we use "append" until minimum version of Python is raised.
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42 self.parser.add_argument(
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43 "-f",
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44 "--filter",
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45 dest="filters",
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46 action="append",
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47 choices=["available", "running"],
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48 help=_("show applications with this status"),
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49 )
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50
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51 async def start(self):
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52
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53 # FIXME: this is only needed because we can't use "extend" in
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54 # add_parser_options, see note there
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55 if self.args.filters:
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56 self.args.filters = list(set(self.args.filters))
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57 else:
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58 self.args.filters = ["available"]
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59
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60 try:
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61 found_apps = await self.host.bridge.applications_list(self.args.filters)
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62 except Exception as e:
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63 self.disp(f"can't get applications list: {e}", error=True)
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64 self.host.quit(C.EXIT_BRIDGE_ERRBACK)
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65 else:
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66 await self.output(found_apps)
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67 self.host.quit()
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68
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69
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70 class Start(base.CommandBase):
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71 """Start an application"""
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72
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73 def __init__(self, host):
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74 super(Start, self).__init__(
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75 host, "start", use_profile=False, help=_("start an application")
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76 )
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77
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78 def add_parser_options(self):
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79 self.parser.add_argument(
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80 "name",
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81 help=_("name of the application to start"),
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82 )
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83
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84 async def start(self):
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85 try:
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86 await self.host.bridge.application_start(
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87 self.args.name,
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88 "",
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89 )
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90 except Exception as e:
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91 self.disp(f"can't start {self.args.name}: {e}", error=True)
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92 self.host.quit(C.EXIT_BRIDGE_ERRBACK)
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93 else:
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94 self.host.quit()
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95
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96
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97 class Stop(base.CommandBase):
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98
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99 def __init__(self, host):
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100 super(Stop, self).__init__(
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101 host, "stop", use_profile=False, help=_("stop a running application")
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102 )
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103
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104 def add_parser_options(self):
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105 id_group = self.parser.add_mutually_exclusive_group(required=True)
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106 id_group.add_argument(
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107 "name",
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108 nargs="?",
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109 help=_("name of the application to stop"),
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110 )
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111 id_group.add_argument(
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112 "-i",
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113 "--id",
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114 help=_("identifier of the instance to stop"),
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115 )
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116
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117 async def start(self):
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118 try:
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119 if self.args.name is not None:
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120 args = [self.args.name, "name"]
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121 else:
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122 args = [self.args.id, "instance"]
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123 await self.host.bridge.application_stop(
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124 *args,
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125 "",
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126 )
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127 except Exception as e:
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128 if self.args.name is not None:
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129 self.disp(f"can't stop application {self.args.name!r}: {e}", error=True)
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130 else:
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131 self.disp(
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132 f"can't stop application instance with id {self.args.id!r}: {e}",
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133 error=True,
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134 )
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135 self.host.quit(C.EXIT_BRIDGE_ERRBACK)
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136 else:
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137 self.host.quit()
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138
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139
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140 class Exposed(base.CommandBase):
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141
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142 def __init__(self, host):
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143 super(Exposed, self).__init__(
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144 host,
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145 "exposed",
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146 use_profile=False,
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147 use_output=C.OUTPUT_DICT,
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148 help=_("show data exposed by a running application"),
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149 )
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150
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151 def add_parser_options(self):
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152 id_group = self.parser.add_mutually_exclusive_group(required=True)
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153 id_group.add_argument(
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154 "name",
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155 nargs="?",
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156 help=_("name of the application to check"),
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157 )
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158 id_group.add_argument(
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159 "-i",
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160 "--id",
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161 help=_("identifier of the instance to check"),
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162 )
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163
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164 async def start(self):
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165 try:
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166 if self.args.name is not None:
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167 args = [self.args.name, "name"]
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168 else:
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169 args = [self.args.id, "instance"]
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170 exposed_data_raw = await self.host.bridge.application_exposed_get(
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171 *args,
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172 "",
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173 )
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174 except Exception as e:
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175 if self.args.name is not None:
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176 self.disp(
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177 f"can't get values exposed from application {self.args.name!r}: {e}",
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178 error=True,
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179 )
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180 else:
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181 self.disp(
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182 f"can't values exposed from application instance with id {self.args.id!r}: {e}",
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183 error=True,
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184 )
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185 self.host.quit(C.EXIT_BRIDGE_ERRBACK)
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186 else:
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187 exposed_data = data_format.deserialise(exposed_data_raw)
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188 await self.output(exposed_data)
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189 self.host.quit()
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190
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191
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192 class Application(base.CommandBase):
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193 subcommands = (List, Start, Stop, Exposed)
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194
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195 def __init__(self, host):
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196 super(Application, self).__init__(
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197 host,
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198 "application",
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199 use_profile=False,
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200 help=_("manage applications"),
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201 aliases=["app"],
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202 )