Modernize Exceptions

_sources/lectures/TWP54/TWP54_2.rst

@@ -21,24 +21,31 @@ Atrapando la excepción
 Manejo de excepciones
 ---------------------
 
-.. code-block :: python
-
-   def salvar_dados():
-      try:
-         fileD = open("encomendas.txt","a")
-         fileD.write("Destino:\n")
-         fileD.write("%s\n" %destino.get())
-         fileD.write("Descripcion:\n")
-         fileD.write("%s\n" %descripcion.get())
-         fileD.write("Habla:\n")
-         fileD.write("%s\n" %Habla.get("1.0",END))
-         destino.set(None)
-         descricao.delete(0,END)
-         endereco.delete("1.0",END)
-      except Excepción como excepciones:
-         app.title('archivo de grabación %s' %excepcion)
+.. activecode:: ac_l54_2a
+   :nocodelens:
+   :language: python3
+   :python3_interpreter: brython
 
+   from browser import window, prompt, alert
 
+   def guardar_datos():
+      try:
+         destino = prompt("Ingrese Destino")
+         if not destino:
+            raise ValueError("El destino no puede estar vacío")
+         window.sessionStorage["Destino"] = destino
+         descripcion = prompt("Ingrese Descripción")
+         if not descripcion:
+            raise ValueError("La descripción no puede estar vacía")
+         window.sessionStorage["Descripción"] = descripcion
+         discurso = prompt("Ingrese Discurso")
+         if not discurso:
+            raise ValueError("El discurso no puede estar vacío")
+         window.sessionStorage["Discurso"] = discurso
+      except Exception as excepcion:
+         alert(f'Error: {excepcion}')
+
+   guardar_datos()
 
 + Obs.: para você testar a exceção deverá alterar as propriedades do arquivo
 

_sources/lectures/TWP54/TWP54_2_en.rst

@@ -21,23 +21,31 @@ Catching the Exception
 Handling Exceptions
 ---------------------
 
-.. code-block :: python
+.. activecode:: ac_l54_2a_en
+   :nocodelens:
+   :language: python3
+   :python3_interpreter: brython
+
+   from browser import window, prompt, alert
 
    def save_data():
       try:
-         fileD = open("orders.txt","a")
-         fileD.write("Destination:\n")
-         fileD.write("%s\n" %destination.get())
-         fileD.write("Description:\n")
-         fileD.write("%s\n" %description.get())
-         fileD.write("Speech:\n")
-         fileD.write("%s\n" %Speech.get("1.0",END))
-         destination.set(None)
-         description.delete(0,END)
-         address.delete("1.0",END)
+         destination = prompt("Enter Destination")
+         if not destination:
+               raise ValueError("Destination cannot be empty")
+         window.sessionStorage["Destination"] = destination
+         description= prompt("Enter Description")
+         if not description:
+               raise ValueError("Description cannot be empty")
+         window.sessionStorage["Description"] = description
+         speech= prompt("Enter Speech")
+         if not speech:
+               raise ValueError("Speech cannot be empty")
+         window.sessionStorage["Speech"] = speech
       except Exception as exception:
-         app.title('Recording file %s' %exception)
+         alert(f'Error: {exception}')
 
+   save_data()
 
 
 + Note: to test the exception you will need to change the properties of the file

_sources/lectures/TWP54/TWP54_3.rst

@@ -1,23 +1,47 @@
 Usando un messagebox
 ====================
 
-.. code-block :: python
+.. activecode:: ac_l54_3a
+   :nocodelens:
+   :language: python3
+   :python3_interpreter: brython
 
-   def salvar_dados():
+   from browser import document, alert, window, html
+
+   def guardar_datos(event):
       try:
-         fileD = open("encomendas.txt","a")
-         fileD.write("Destino:\n")
-         fileD.write("%s\n" %destino.get())
-         fileD.write("Descricao:\n")
-         fileD.write("%s\n" %descricao.get())
-         fileD.write("Endereco:\n")
-         fileD.write("%s\n" %endereco.get("1.0",END))
-         destino.set(None)
-         descricao.delete(0,END)
-         endereco.delete("1.0",END)
-      except Exception as excecao:
-         app.title('Erro de gravacao no arquivo %s' %excecao)
+         destino = entrada_destino.value
+         descripcion = entrada_descripcion.value
+         direccion = entrada_direccion.value
+
+         if not destino or not descripcion or not direccion:
+            raise ValueError("Todos los campos deben estar llenos")
+
+         window.sessionStorage["Destino"] = destino
+         window.sessionStorage["Descripción"] = descripcion
+         window.sessionStorage["Dirección"] = direccion
+      except Exception as excepcion:
+         alert(f'Error: {excepcion}')
+
+   app = html.DIV()
+
+   app <= html.LABEL('Destino: ')
+   entrada_destino = html.INPUT()
+   app <= entrada_destino
+
+   app <= html.LABEL('Descripción: ')
+   entrada_descripcion = html.INPUT()
+   app <= entrada_descripcion
+
+   app <= html.LABEL('Dirección: ')
+   entrada_direccion = html.INPUT()
+   app <= entrada_direccion
+
+   boton = html.BUTTON('Guardar')
+   boton.bind('click', guardar_datos)
+   app <= boton
 
+   document <= app
 
 .. image:: ../img/TWP54_009.jpg
    :height: 8.042cm

_sources/lectures/TWP54/TWP54_3_en.rst

@@ -1,22 +1,47 @@
 Using a messagebox
 ====================
 
-.. code-block:: python
+.. activecode:: ac_l54_3a_en
+   :nocodelens:
+   :language: python3
+   :python3_interpreter: brython
 
-   def save_data():
+   from browser import document, alert, window, html
+
+   def save_data(event):
       try:
-         fileD = open("orders.txt","a")
-         fileD.write("Destination:\n")
-         fileD.write("%s\n" %destination.get())
-         fileD.write("Description:\n")
-         fileD.write("%s\n" %description.get())
-         fileD.write("Address:\n")
-         fileD.write("%s\n" %address.get("1.0",END))
-         destination.set(None)
-         description.delete(0,END)
-         address.delete("1.0",END)
+         destination = destination_input.value
+         description = description_input.value
+         address = address_input.value
+
+         if not destination or not description or not address:
+            raise ValueError("All fields must be filled")
+
+         window.sessionStorage["Destination"] = destination
+         window.sessionStorage["Description"] = description
+         window.sessionStorage["Address"] = address
       except Exception as exception:
-         app.title('File writing error: %s' %exception)
+         alert(f'Error: {exception}')
+
+   app = html.DIV()
+
+   app <= html.LABEL('Destination: ')
+   destination_input = html.INPUT()
+   app <= destination_input
+
+   app <= html.LABEL('Description: ')
+   description_input = html.INPUT()
+   app <= description_input
+
+   app <= html.LABEL('Address: ')
+   address_input = html.INPUT()
+   app <= address_input
+
+   button = html.BUTTON('Save')
+   button.bind('click', save_data)
+   app <= button
+
+   document <= app
 
 
 .. image:: ../img/TWP54_009.jpg