09_New_in_Python/06_ args___kwargs .ipynb

{"nbformat":4,"nbformat_minor":0,"metadata":{"colab":{"provenance":[],"toc_visible":true,"authorship_tag":"ABX9TyMYBZw+t5DAL29xpGK3KIoP"},"kernelspec":{"name":"python3","display_name":"Python 3"},"language_info":{"name":"python"}},"cells":[{"cell_type":"markdown","source":["In Python, `*args` and `**kwargs` are special syntax used to pass a variable number of arguments to a function.\n","\n","`*args` is used to pass a non-keyworded, variable-length argument list to a function. It is often used when the number of arguments is unknown or variable. For example:"],"metadata":{"id":"9uTjhQChRbkB"}},{"cell_type":"code","execution_count":1,"metadata":{"colab":{"base_uri":"https://localhost:8080/"},"id":"An22oxjBROWl","executionInfo":{"status":"ok","timestamp":1671552180236,"user_tz":-330,"elapsed":14,"user":{"displayName":"Mohd Faizy","userId":"00466318749872658969"}},"outputId":"1da0df83-c4e2-485a-85d2-48402faf7b2e"},"outputs":[{"output_type":"stream","name":"stdout","text":["1\n","2\n","3\n","1\n","2\n","3\n","4\n","5\n"]}],"source":["def my_function(*args):\n","  for arg in args:\n","    print(arg)\n","\n","my_function(1, 2, 3)  # prints 1, 2, 3\n","my_function(1, 2, 3, 4, 5)  # prints 1, 2, 3, 4, 5\n"]},{"cell_type":"markdown","source":["`**kwargs` is used to pass a keyworded, variable-length argument list to a function. It is often used when the number of keyword arguments is unknown or variable. For example:"],"metadata":{"id":"9Z7Kzy2pRgaw"}},{"cell_type":"code","source":["def my_function(**kwargs):\n","  for key, value in kwargs.items():\n","    print(f\"{key} = {value}\")\n","\n","my_function(name=\"John\", age=30)  # prints name = John, age = 30\n","my_function(name=\"Jane\", age=25, city=\"New York\")  # prints name = Jane, age = 25, city = New York\n"],"metadata":{"colab":{"base_uri":"https://localhost:8080/"},"id":"80VEhv4iRhBf","executionInfo":{"status":"ok","timestamp":1671552184581,"user_tz":-330,"elapsed":5,"user":{"displayName":"Mohd Faizy","userId":"00466318749872658969"}},"outputId":"66ddd737-300e-40d8-e4d4-bc69271ebc6a"},"execution_count":2,"outputs":[{"output_type":"stream","name":"stdout","text":["name = John\n","age = 30\n","name = Jane\n","age = 25\n","city = New York\n"]}]},{"cell_type":"markdown","source":["Both `*args` and `**kwargs` can be used in the same function definition, but *args must come before `**kwargs`. For example:"],"metadata":{"id":"sEGu7FZCRlEO"}},{"cell_type":"code","source":["def my_function(param1, param2, *args, **kwargs):\n","  print(f\"param1 = {param1}\")\n","  print(f\"param2 = {param2}\")\n","  print(\"Args:\")\n","  for arg in args:\n","    print(arg)\n","  print(\"Keyword arguments:\")\n","  for key, value in kwargs.items():\n","    print(f\"{key} = {value}\")\n","\n","my_function(1, 2, 3, 4, 5, name=\"John\", age=30)"],"metadata":{"colab":{"base_uri":"https://localhost:8080/"},"id":"KgdS0Z1yRkf2","executionInfo":{"status":"ok","timestamp":1671552282816,"user_tz":-330,"elapsed":18,"user":{"displayName":"Mohd Faizy","userId":"00466318749872658969"}},"outputId":"5898da94-b54c-4c73-a71d-74f0d30dbf92"},"execution_count":4,"outputs":[{"output_type":"stream","name":"stdout","text":["param1 = 1\n","param2 = 2\n","Args:\n","3\n","4\n","5\n","Keyword arguments:\n","name = John\n","age = 30\n"]}]},{"cell_type":"code","source":["def print_info(name, *args, **kwargs):\n","  print(f\"Name: {name}\")\n","  print(\"Additional information:\")\n","  for arg in args:\n","    print(arg)\n","  print(\"Keyword arguments:\")\n","  for key, value in kwargs.items():\n","    print(f\"{key} = {value}\")\n","\n","print_info(\"John\", \"Lives in New York\", \"Works as a software developer\", age=30, city=\"New York\")"],"metadata":{"id":"lqU024UZSGOn","executionInfo":{"status":"ok","timestamp":1671552335160,"user_tz":-330,"elapsed":858,"user":{"displayName":"Mohd Faizy","userId":"00466318749872658969"}},"outputId":"03dce47b-d6f9-4710-d867-7799eb1c2e69","colab":{"base_uri":"https://localhost:8080/"}},"execution_count":5,"outputs":[{"output_type":"stream","name":"stdout","text":["Name: John\n","Additional information:\n","Lives in New York\n","Works as a software developer\n","Keyword arguments:\n","age = 30\n","city = New York\n"]}]}]}