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<code>
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  "tooltip": "Instruction pour afficher un message à l'écran",
  "helpUrl": ""
},
{ "type": "block_free",
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      "name": "STR",
      "text": "expression Python libre"
    },
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  "output": null,
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  "helpUrl": ""
},
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  "message0": "return ( %1 )",
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  "colour": 150,
  "tooltip": "Instruction pour renvoyer le résultat d'une fonction",
  "helpUrl": ""
},
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  "message0": "%1( )",
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      "name": "STR",
      "text": "ma_fonction"
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  "output": null,
  "colour": 150,
  "tooltip": "Appelle une fonction pour l'exécuter",
  "helpUrl": ""
},
{ "type": "block_function_call_one",
  "message0": "%1( %2 )",
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      "type": "field_input",
      "name": "STR",
      "text": "ma_fonction"
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  "output": null,
  "colour": 150,
  "tooltip": "Appelle une fonction pour l'exécuter",
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},
{ "type": "block_function_call_two",
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  "inputsInline": true,
  "output": null,
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  "tooltip": "Appelle une fonction pour l'exécuter",
  "helpUrl": ""
},
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  "message0": "%1( %2, %3, %4 )",
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      "text": "ma_fonction"
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      "type": "input_value",
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      "type": "input_value",
      "name": "EXPTHREE"
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  "inputsInline": true,
  "output": null,
  "colour": 150,
  "tooltip": "Appelle une fonction pour l'exécuter",
  "helpUrl": ""
},
{ "type": "block_function_call_four",
  "message0": "%1( %2, %3, %4, %5 )",
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      "type": "field_input",
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      "text": "ma_fonction"
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      "type": "input_value",
      "name": "EXPTWO"
    },
    {
      "type": "input_value",
      "name": "EXPTHREE"
    },
    {
      "type": "input_value",
      "name": "EXPFOUR"
    }
  ],
  "inputsInline": true,
  "output": null,
  "colour": 150,
  "tooltip": "Appelle une fonction pour l'exécuter",
  "helpUrl": ""
},
{ "type": "block_set_bool",
  "message0": "%1 = %2",
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      "type": "field_variable",
      "name": "VAR",
      "variable": "ok",
      "variableTypes": ["Boolean"],
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      "type": "input_value",
      "name": "VALUE",
      "check": "Boolean"
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  "colour": 340,
  "tooltip": "Affectation de la variable à la valeur d'une expression logique",
  "helpUrl": ""
},
{ "type": "block_set_int",
  "message0": "%1 = %2",
  "args0": [
    {
      "type": "field_variable",
      "name": "VAR",
      "variable": "nombre",
      "variableTypes": ["Number"],
      "defaultType": "Number"
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      "type": "input_value",
      "name": "VALUE",
      "check": "Number"
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  "colour": 20,
  "tooltip": "Affectation de la variable à la valeur d'une expression arithmétique",
  "helpUrl": ""
},
{ "type": "block_set_str",
  "message0": "%1 = %2",
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      "type": "field_variable",
      "name": "VAR",
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      "variableTypes": ["String"],
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  "colour": 300,
  "tooltip": "Affectation de la variable à la valeur d'une chaîne de caractères",
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      "type": "input_dummy"
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      "check": "Boolean",
      "align": "CENTRE"
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  "tooltip": "Instruction composée, répétant les instructions imbriquées tant que la condition est vraie",
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  "colour": 150,
  "tooltip": "Définit une fonction.",
  "helpUrl": "",
  "extensions": [
      "ajoutVariableContextMenu"
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{ "type": "block_function_one",
  "message0": "def %1 ( %2 %3 ) : %4 %5",
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  "inputsInline": true,
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  "nextStatement": null,
  "colour": 150,
  "tooltip": "Définit une fonction.",
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  "extensions": [
      "ajoutVariableContextMenu"
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},
{ "type": "block_function_two",
  "message0": "def %1 ( %2 %3, %4 %5) : %6 %7",
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      "type": "field_input",
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      "text": "ma_fonction"
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      "type": "input_dummy"
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      "type": "input_value",
      "name": "VAR"
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    {
      "type": "input_dummy"
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      "type": "input_value",
      "name": "VARTWO"
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      "type": "input_dummy"
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      "name": "INST"
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  "inputsInline": true,
  "previousStatement": null,
  "nextStatement": null,
  "colour": 150,
  "tooltip": "Définit une fonction.",
  "helpUrl": "",
  "extensions": [
      "ajoutVariableContextMenu"
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},
{ "type": "block_function_three",
  "message0": "def %1 ( %2 %3, %4 %5, %6 %7) : %8 %9",
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      "text": "ma_fonction"
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      "type": "input_dummy"
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},
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  "output": "Boolean",
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  "tooltip": "Expression booléenne vraie si et seulement si ses deux arguments valent vrai",
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{ "type": "block_or",
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  "tooltip": "Expression booléenne vraie si et seulement si au moins l'un de ses deux arguments vaut vrai",
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},
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},
{ "type": "block_comp",
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      "value": 0
    }
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  "tooltip": "Constante numérique",
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{ "type": "block_plus",
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  "tooltip": "Addition",
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  "tooltip": "Soustraction",
  "helpUrl": ""
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{ "type": "block_mult",
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      "check": "Number"
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  "inputsInline": true,
  "output": "Number",
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  "tooltip": "Multiplication",
  "helpUrl": ""
},
{ "type": "block_div",
  "message0": "%1 / %2",
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  "helpUrl": ""
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{ "type": "block_mod",
  "message0": "%1 \% %2",
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      "check": "Number"
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  "tooltip": "Reste de la division entière",
  "helpUrl": ""
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{ "type": "block_pow",
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      "check": "Number"
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  "inputsInline": true,
  "output": "Number",
  "colour": 20,
  "tooltip": "Puissance",
  "helpUrl": ""
},
{ "type": "block_neg",
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      "name": "EXP",
      "check": "Number"
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  "output": "Number",
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      "type": "field_input",
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  "tooltip": "Fonction permettant d'afficher un message et de saisir une chaîne de caractères",
  "helpUrl": ""
},
{ "type": "block_concat",
  "message0": "%1 + %2",
  "args0": [
    {
      "type": "input_value",
      "name": "STR1",
      "check": "String"
    },
    {
      "type": "input_value",
      "name": "STR2",
      "check": "String"
    }
  ],
  "inputsInline": true,
  "output": "String",
  "colour": 300,
  "tooltip": "Opération de concaténation de chaînes de caractères",
  "helpUrl": ""
},
{ "type": "block_str",
  "message0": "str ( %1 )",
  "args0": [
    {
      "type": "input_value",
      "name": "EXP",
      "check": "Number"
    }
  ],
  "inputsInline": true,
  "output": "String",
  "colour": 300,
  "tooltip": "Conversion d'un entier en chaîne de caractères",
  "helpUrl": ""
},
{ "type": "block_chr",
  "message0": "chr ( %1 )",
  "args0": [
    {
      "type": "input_value",
      "name": "EXP",
      "check": "Number"
    }
  ],
  "inputsInline": true,
  "output": "String",
  "colour": 300,
  "tooltip": "Décodage d'un caractère à partir de son code entier",
  "helpUrl": ""
},
{ "type": "block_nth",
  "message0": "%1 [ %2 ]",
  "args0": [
    {
      "type": "input_value",
      "name": "EXP",
      "check": "String"
    },
    {
      "type": "input_value",
      "name": "INDEX",
      "check": "Number"
    }
  ],
  "inputsInline": true,
  "output": "String",
  "colour": 300,
  "tooltip": "Accès au ieme caractère d'une chaîne de caractères",
  "helpUrl": ""
},
  // ------------- librairie random -----------------
{ "type": "block_import_random",
  "message0": "from random import *",
  "previousStatement": null,
  "nextStatement": null,
  "colour": 50,
  "tooltip": "Importe la bibliothèque random",
  "helpUrl": ""
},
{ "type": "block_random",
  "message0": "random()",
  "output": "Number",
  "colour": 50,
  "tooltip": "Renvoie un nombre aléatoire dans l'intervalle [0,1[",
  "helpUrl": ""
},
{ "type": "block_randint",
  "message0": "randint (%1, %2)",
  "args0": [
    {
      "type": "input_value",
      "name": "EXP1",
      "check": "Number"
    },
    {
      "type": "input_value",
      "name": "EXP2",
      "check": "Number"
    }
  ],
  "inputsInline": true,
  "output": "Number",
  "colour": 50,
  "tooltip": "randint(a,b) renvoie un entier aléatoire entre deux entiers a et b  avec a ≤ N ≤ b",
  "helpUrl": ""
},
{ "type": "block_randrange",
  "message0": "randrange(%1, %2)",
  "args0": [
    {
      "type": "input_value",
      "name": "EXP1",
      "check": "Number"
    },
    {
      "type": "input_value",
      "name": "EXP2",
      "check": "Number"
    }
  ],
  "inputsInline": true,
  "output": "Number",
  "colour": 50,
  "tooltip": "randrange(a,b) renvoie un entier aléatoire entre deux entiers a et b  avec a ≤ N ≤ b-1",
  "helpUrl": ""
},
  // ------------- librairie math -----------------
{ "type": "block_import_math",
  "message0": "from math import *",
  "previousStatement": null,
  "nextStatement": null,
  "colour": 35,
  "tooltip": "Importe la bibliothèque math",
  "helpUrl": ""
},
{ "type": "block_abs",
  "message0": "abs(%1)",
  "args0": [
    {
      "type": "input_value",
      "name": "EXP1",
      "check": "Number"
    }
  ],
  "inputsInline": true,
  "output": "Number",
  "colour": 35,
  "tooltip": "Valeur absolue d'un nombre",
  "helpUrl": ""
},
{ "type": "block_floor",
  "message0": "floor(%1)",
  "args0": [
    {
      "type": "input_value",
      "name": "EXP1",
      "check": "Number"
    }
  ],
  "inputsInline": true,
  "output": "Number",
  "colour": 35,
  "tooltip": "floor(x) renvoie le plancher de x, le plus grand entier plus petit ou égal à x",
  "helpUrl": ""
},
{ "type": "block_ceil",
  "message0": "ceil(%1)",
  "args0": [
    {
      "type": "input_value",
      "name": "EXP1",
      "check": "Number"
    }
  ],
  "inputsInline": true,
  "output": "Number",
  "colour": 35,
  "tooltip": "ceil(x) renvoie la fonction plafond de x, le plus petit entier plus grand ou égal à x",
  "helpUrl": ""
},
{ "type": "block_exp",
  "message0": "exp(%1)",
  "args0": [
    {
      "type": "input_value",
      "name": "EXP1",
      "check": "Number"
    }
  ],
  "inputsInline": true,
  "output": "Number",
  "colour": 35,
  "tooltip": "Fonction exponentielle",
  "helpUrl": ""
},
{ "type": "block_log",
  "message0": "log(%1)",
  "args0": [
    {
      "type": "input_value",
      "name": "EXP1",
      "check": "Number"
    }
  ],
  "inputsInline": true,
  "output": "Number",
  "colour": 35,
  "tooltip": "Fonction logarithme néperien",
  "helpUrl": ""
},
{ "type": "block_sqrt",
  "message0": "sqrt(%1)",
  "args0": [
    {
      "type": "input_value",
      "name": "EXP1",
      "check": "Number"
    }
  ],
  "inputsInline": true,
  "output": "Number",
  "colour": 35,
  "tooltip": "Fonction racine carrée",
  "helpUrl": ""
},
{ "type": "block_cos",
  "message0": "cos(%1)",
  "args0": [
    {
      "type": "input_value",
      "name": "EXP1",
      "check": "Number"
    }
  ],
  "inputsInline": true,
  "output": "Number",
  "colour": 35,
  "tooltip": "Fonction cosinus",
  "helpUrl": ""
},
{ "type": "block_sin",
  "message0": "sin(%1)",
  "args0": [
    {
      "type": "input_value",
      "name": "EXP1",
      "check": "Number"
    }
  ],
  "inputsInline": true,
  "output": "Number",
  "colour": 35,
  "tooltip": "Fonction sinus",
  "helpUrl": ""
},
{ "type": "block_tan",
  "message0": "tan(%1)",
  "args0": [
    {
      "type": "input_value",
      "name": "EXP1",
      "check": "Number"
    }
  ],
  "inputsInline": true,
  "output": "Number",
  "colour": 35,
  "tooltip": "Fonction tangente",
  "helpUrl": ""
},
{ "type": "block_pi",
  "message0": "pi",
  "output": "Number",
  "colour": 35,
  "tooltip": "Constante pi",
  "helpUrl": ""
},
{ "type": "block_e",
  "message0": "e",
  "output": "Number",
  "colour": 35,
  "tooltip": "Constante e",
  "helpUrl": ""
},

]);

/**
 * Mixin to add a context menu item to create a 'variables_get' block.
 * Used by blocks 'controls_for' and 'controls_forEach'.
 * @mixin
 * @augments Blockly.Block
 * @package
 * @readonly
 */
 Blockly.Constants.Loops.CUSTOM_CONTEXT_MENU_CREATE_VARIABLES_GET_MIXIN = {
   /**
    * Add context menu option to create getter block for the loop's variable.
    * (customContextMenu support limited to web BlockSvg.)
    * @param {!Array} options List of menu options to add to.
    * @this {Blockly.Block}
    */
   customContextMenu: function(options) {
     if (this.isInFlyout) {
       return;
     }
     var variable = this.getField('VAR').getVariable();
     var varName = variable.name;
     if (!this.isCollapsed() && varName != null) {
       var option = {enabled: true};
       option.text =
           Blockly.Msg['VARIABLES_SET_CREATE_GET'].replace('%1', varName);
       // var xmlField = Blockly.Variables.generateVariableFieldDom(variable);
       // xmlField.setAttribute('name', 'VAR');
       // xmlField.setAttribute('variable', varName);
       // xmlField.setAttribute('variabletype', '');
       // var xmlBlock = Blockly.utils.xml.createElement('block');
       // xmlBlock.setAttribute('type', 'block_get_int');
       // xmlBlock.appendChild(xmlField);
       var xmlBlock = Blockly.Xml.textToDom('<block type="block_get_indice"> <field name="VAR" variabletype="Indice">' + varName + '</field> </block>');
       option.callback = Blockly.ContextMenu.callbackFactory(this, xmlBlock);
       options.push(option);
     }
   }
 };

 Blockly.Extensions.registerMixin('ajoutVariableContextMenu',
    Blockly.Constants.Loops.CUSTOM_CONTEXT_MENU_CREATE_VARIABLES_GET_MIXIN);

 Blockly.Extensions.register('controlTooltip',
    Blockly.Extensions.buildTooltipWithFieldText(
      '%{BKY_CONTROLS_FOR_TOOLTIP}', 'VAR'));
</code>