06.04.user-defined-functions-exercises.ipynb

{"nbformat":4,"nbformat_minor":0,"metadata":{"kernelspec":{"display_name":"Python 3","language":"python","name":"python3"},"language_info":{"codemirror_mode":{"name":"ipython","version":3},"file_extension":".py","mimetype":"text/x-python","name":"python","nbconvert_exporter":"python","pygments_lexer":"ipython3","version":"3.7.3"},"colab":{"name":"03.d2.04.functions-exercises.ipynb","provenance":[],"collapsed_sections":[]}},"cells":[{"cell_type":"markdown","metadata":{"id":"SNfdpS-jKa1p","colab_type":"text"},"source":["# 1. Fill the missing pieces of the `count_even_numbers` function\n","Fill in the `____` pieces of the `count_even_numbers` function in order to pass the assertions.\n","You can assume that `numbers` argument is a list of integers."]},{"cell_type":"markdown","metadata":{"id":"N74ROnB7Ka1s","colab_type":"text"},"source":["#### Your Solution:"]},{"cell_type":"code","metadata":{"colab_type":"code","id":"JsWW9lAfN7bR","colab":{}},"source":["___ count_even_numbers(numbers):\n","    even_count = 0\n","    for num in ____:\n","        if ___ % 2 == _:\n","            even_count += _\n","    return __________"],"execution_count":0,"outputs":[]},{"cell_type":"markdown","metadata":{"id":"MLeodrSAKa12","colab_type":"text"},"source":["#### Test Solution:"]},{"cell_type":"code","metadata":{"id":"xwfQTzeUKa14","colab_type":"code","colab":{}},"source":["assert count_even_numbers([1, 2, 3, 4, 5, 6]) == 3\n","assert count_even_numbers([1, 3, 5, 7]) == 0\n","assert count_even_numbers([-2, 2, -10, 8]) == 4"],"execution_count":0,"outputs":[]},{"cell_type":"markdown","metadata":{"id":"ebKZHQBoKa18","colab_type":"text"},"source":["---\n","<br>\n","<br>"]},{"cell_type":"markdown","metadata":{"id":"XeP3EHjZKa18","colab_type":"text"},"source":["# 2. Searching for wanted people"]},{"cell_type":"markdown","metadata":{"id":"6NpZXjsLKa19","colab_type":"text"},"source":["Task:\n","1. Implement `find_wanted_people` function which takes a list of names (list of strings) as the argument. \n","2. The function should return a list of names which are present both in `WANTED_PEOPLE` and in the list given as the argument to the function."]},{"cell_type":"code","metadata":{"id":"KHlit3OZKa1-","colab_type":"code","colab":{}},"source":["WANTED_PEOPLE = ['Billy The Kid', \n","                 'Clint Eastwood', \n","                 'Chuck Norris']"],"execution_count":0,"outputs":[]},{"cell_type":"markdown","metadata":{"id":"FTKGBhOZKa2A","colab_type":"text"},"source":["#### Your `find_wanted_people` function:"]},{"cell_type":"code","metadata":{"id":"EjmuRFkNKa2G","colab_type":"code","colab":{}},"source":["def find_wanted_people(names):\n","  pass"],"execution_count":0,"outputs":[]},{"cell_type":"markdown","metadata":{"id":"LnO2IhHtKa2K","colab_type":"text"},"source":["#### Test your function:"]},{"cell_type":"code","metadata":{"id":"wGZeYbI9Ka2L","colab_type":"code","colab":{}},"source":["# Prepare test values\n","people_to_check1 = ['Donald Duck', \n","                    'Clint Eastwood', \n","                    'Billy The Kid', \n","                    'Steven Colbert']\n","\n","# Pass people_to_check1, to your function.\n","wanted1 = find_wanted_people(people_to_check1)\n","\n","# Tests\n","assert len(wanted1) == 2\n","assert 'Billy The Kid' in wanted1\n","assert 'Clint Eastwood'in wanted1"],"execution_count":0,"outputs":[]},{"cell_type":"code","metadata":{"id":"awHHeGzHKa2O","colab_type":"code","colab":{}},"source":["# Prepare test values\n","people_to_check2 = ['Donald Duck', \n","                    'Mickey Mouse', \n","                    'Zorro', \n","                    'Superman', \n","                    'Robin Hood']\n","# Pass people_to_check1, to your function.\n","wanted2 = find_wanted_people(people_to_check2)\n","\n","# Test \n","assert wanted2 == []"],"execution_count":0,"outputs":[]},{"cell_type":"markdown","metadata":{"id":"sCm5IPTzKa2Q","colab_type":"text"},"source":["---\n","<br>\n","<br>"]},{"cell_type":"markdown","metadata":{"id":"x-0K6CvtKa2R","colab_type":"text"},"source":["# 3. Counting average length of words in a sentence"]},{"cell_type":"markdown","metadata":{"id":"yGgJq587Ka2U","colab_type":"text"},"source":["Task:\n","1. Create a function `average_length_of_words` which takes a string as an argument and returns the average length of the words in the string. \n","\n","2. You can assume that there is a single space between each word and that the input does not contain special punctuation. \n","\n","3. The result should be rounded to one decimal place (hint: see [`round`](https://docs.python.org/3/library/functions.html#round))."]},{"cell_type":"markdown","metadata":{"id":"YAbLVyy8Ka2Y","colab_type":"text"},"source":["#### Your `average_length_of_words` function:"]},{"cell_type":"code","metadata":{"id":"1YnVljRpKa2Z","colab_type":"code","colab":{}},"source":["def average_length_of_words():\n","    # Should probably convert string to list somehow\n","    # a for loop for sure\n","\n","    pass"],"execution_count":0,"outputs":[]},{"cell_type":"markdown","metadata":{"id":"GpszLSaHKa2c","colab_type":"text"},"source":["#### Test Solution"]},{"cell_type":"code","metadata":{"id":"_BTWs6GRKa2d","colab_type":"code","colab":{}},"source":["assert average_length_of_words('only four lett erwo rdss') == 4\n","assert average_length_of_words('one two three') == 3.7\n","assert average_length_of_words('one two three four') == 3.8\n","assert average_length_of_words('') == 0"],"execution_count":0,"outputs":[]}]}