resolved, day 02, lab extra 02

functions.py

@@ -0,0 +1,127 @@
+import string
+
+def get_unique_list_f(lst):
+    """
+    Takes a list as an argument and returns a new list with unique elements from the first list.
+    Parameters:
+    lst (list): The input list.
+    Returns:
+    list: A new list with unique elements from the input list.
+    """
+    # your code goes here
+
+    try:
+        if type(lst) != list:
+            raise TypeError("Argument is not a list.")
+        if len(lst) == 0:
+            raise ValueError("Argument is empty, please try again.")
+        seen = set()
+        finished_lst = []
+        for elem in lst:
+            if elem not in seen:
+                seen.add(elem)
+                finished_lst.append(elem)
+    except TypeError as e:
+        print(f"Error: {e}")
+        return []
+    except ValueError as e:
+        print(f"Error: {e}")
+        return []
+    else:
+        return finished_lst
+    finally:
+        print(
+            """
+Program finished successfully. Read the results and report any issue.
+This program has been designed to iterate through a list and return another
+list with just the unique elements of the first list.
+            """
+            )
+
+def count_case_f(string):
+    """
+    Returns the number of uppercase and lowercase letters in the given string.
+
+    Parameters:
+    string (str): The string to count uppercase and lowercase letters in.
+
+    Returns:
+    A tuple containing the count of uppercase and lowercase letters in the string.
+    """
+    # your code goes here
+    try:
+        if len(string) == 0:
+            raise ValueError("String is empty")
+        string = string.strip().split()
+        string = "".join(string)
+        uppercase_letters = ""
+        lowercase_letters = ""
+        for char in string:
+            if char.islower():
+                lowercase_letters = char + lowercase_letters
+            else:
+                uppercase_letters = char + uppercase_letters
+        solution = (len(uppercase_letters), len(lowercase_letters))
+    except ValueError as e:
+        print(f"Error: {e}")
+        return (0, 0)
+    except TypeError as e:
+        print(f'Error: {e}')
+        return (0, 0)
+    except AttributeError as e:
+        print(f'Error: this program works with strings, {e}.')
+        return (0, 0)
+    else:
+        print(f'Uppercase count: {solution[0]}, Lowercase count: {solution[1]}'); return solution
+    finally:
+        print("This program run succesfully.")
+
+def remove_punctuation_f(sentence):
+    """
+    Removes all punctuation marks (commas, periods, exclamation marks, question marks) from a sentence.
+
+    Parameters:
+    sentence (str): A string representing a sentence.
+
+    Returns:
+    str: The sentence without any punctuation marks.
+    """
+    # your code goes here
+    try:
+        if len(sentence) == 0:
+            raise ValueError("String is empty.")
+        solution = sentence.replace(",", "").replace(".", "").replace("!", "").replace("¡", "").replace("?", "").replace("¿", "").replace(":", "")
+    except AttributeError as e:
+        print(f"Error: {e}")
+    except ValueError as e:
+        print(f"Error: {e}")
+    else:
+        return solution
+    finally: 
+        print("remove_puntuation function ran succesfully.")
+
+# your code goes here
+
+def word_count_f(sentence):
+    """
+    Counts the number of words in a given sentence. To do this properly, first it removes punctuation from the sentence.
+    Note: A word is defined as a sequence of characters separated by spaces. We can assume that there will be no leading or trailing spaces in the input sentence.
+
+    Parameters:
+    sentence (str): A string representing a sentence.
+
+    Returns:
+    int: The number of words in the sentence.
+    """
+    # your code goes here
+    try:
+        no_punctuation = remove_punctuation_f(sentence)
+        solution = len(no_punctuation.split())
+    except AttributeError as e:
+        print(f"Error: {e}")
+    except TypeError as e:
+        print(f"Error: {e}")
+    else:
+        print(f"In sentence provided: '{sentence}', there are: {solution} words."); return solution
+    finally:
+        print("Word_count function ran succesfully.")