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lab solved #55

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279 changes: 275 additions & 4 deletions lab-python-error-handling.ipynb
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Original file line number Diff line number Diff line change
Expand Up @@ -42,17 +42,288 @@
{
"cell_type": "code",
"execution_count": null,
"id": "cc2c441d-9dcf-4817-b097-cf6cbe440846",
"id": "76e43ad7",
"metadata": {},
"outputs": [],
"source": [
"# your code goes here"
"# your code goes here\n",
"\n",
"# functions.py\n",
"\n",
"import string\n",
"\n",
"# 1. Returns a new list with unique elements (keeps first appearance)\n",
"def get_unique_list_f(lst):\n",
" unique = []\n",
" for item in lst:\n",
" if item not in unique:\n",
" unique.append(item)\n",
" return unique\n",
"\n",
"\n",
"# 2. Counts uppercase and lowercase letters in a string\n",
"def count_case_f(string): \n",
" upper_count = sum(1 for char in string if char.isupper())\n",
" lower_count = sum(1 for char in string if char.islower())\n",
" return upper_count, lower_count\n",
"\n",
"# 3. Removes punctuation marks from a sentence\n",
"def remove_punctuation_f(sentence):\n",
" return ''.join(char for char in sentence if char not in string.punctuation)\n",
"\n",
"# 4. Counts the number of words in a given sentence after removing punctuation\n",
"def word_count_f(sentence):\n",
" clean_sentence = remove_punctuation_f(sentence)\n",
" words = clean_sentence.split()\n",
" return len(words)"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "bee5a9ce",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Execution of get_unique_list_f_safe is complete.\n",
"Unique list: [1, 2, 3, 4, 5, 6, 7, 8]\n"
]
}
],
"source": [
"# 1. Returns a new list with unique elements (keeps first appearance)\n",
"\n",
"# given this code\n",
"\n",
"def get_unique_list_f(lst):\n",
" unique = []\n",
" for item in lst:\n",
" if item not in unique:\n",
" unique.append(item)\n",
" return unique\n",
"\n",
"# Modify the code to handle possible errors in Python, \n",
"# it is recommended to use `try-except-else-finally` blocks, \n",
"# incorporate the `raise` keyword where necessary, \n",
"# and print meaningful error messages to alert users of any issues that may occur during program execution.\n",
"# ask the user to create prior list with numbers that are more time than once in the list,\n",
"# then ask the user to create an unique list from the prior list.\n",
"\n",
"def get_unique_list_f_safe(lst):\n",
" try:\n",
" if not isinstance(lst, list):\n",
" raise TypeError(\"Input must be a list.\")\n",
" unique = []\n",
" for item in lst:\n",
" if item not in unique:\n",
" unique.append(item)\n",
" except TypeError as te:\n",
" print(f\"TypeError: {te}\")\n",
" except Exception as e:\n",
" print(f\"An unexpected error occurred: {e}\")\n",
" else:\n",
" return unique\n",
" finally:\n",
" print(\"Execution of get_unique_list_f_safe is complete.\")\n",
"\n",
"# Example usage:\n",
"user_input = input(\"Please enter a list of numbers separated by commas (e.g., 1,2,2,3,4,4): \")\n",
"try:\n",
" user_list = [int(x.strip()) for x in user_input.split(',')]\n",
" unique_list = get_unique_list_f_safe(user_list)\n",
" if unique_list is not None:\n",
" print(\"Unique list:\", unique_list)\n",
"except ValueError:\n",
" print(\"Invalid input. Please ensure you enter numbers separated by commas.\")\n",
" \n"
]
},
{
"cell_type": "code",
"execution_count": 17,
"id": "0f78dc5a",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Execution of count_case_f_safe is complete.\n",
"\n",
"Uppercase letters: 2, Lowercase letters: 8\n",
"\n",
"You entered: Hello World\n"
]
}
],
"source": [
"# 2. Counts uppercase and lowercase letters in a string\n",
"\n",
"# given this code\n",
"\n",
"def count_case_f(string): \n",
" upper_count = sum(1 for char in string if char.isupper())\n",
" lower_count = sum(1 for char in string if char.islower())\n",
" return upper_count, lower_count\n",
"\n",
"# Modify the code to handle possible errors in Python, \n",
"# it is recommended to use `try-except-else-finally` blocks, \n",
"# incorporate the `raise` keyword where necessary, \n",
"# and print meaningful error messages to alert users of any issues that may occur during program execution.\n",
"\n",
"def count_case_f_safe(string):\n",
" try:\n",
" if not isinstance(string, str):\n",
" raise TypeError(\"Input must be a string.\")\n",
" upper_count = sum(1 for char in string if char.isupper())\n",
" lower_count = sum(1 for char in string if char.islower())\n",
" except TypeError as te:\n",
" print(f\"TypeError: {te}\")\n",
" except Exception as e:\n",
" print(f\"An unexpected error occurred: {e}\")\n",
" else:\n",
" return upper_count, lower_count\n",
" finally:\n",
" print(\"Execution of count_case_f_safe is complete.\")\n",
"\n",
"# Example usage:\n",
"user_input = input(\"\\nPlease enter a sentence with mixed case letters: \")\n",
"result = count_case_f_safe(user_input)\n",
"if result is not None:\n",
" upper_count, lower_count = result\n",
" print(f\"\\nUppercase letters: {upper_count}, Lowercase letters: {lower_count}\")\n",
"\n",
"# print the sentence entered by the user\n",
" print(f\"\\nYou entered: {user_input}\")\n",
"\n",
"\n"
]
},
{
"cell_type": "code",
"execution_count": 19,
"id": "4920684c",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Execution of remove_punctuation_f_safe is complete.\n",
"\n",
"Cleaned sentence: Note This Is A Good Day Isn´t it\n",
"\n",
"You entered: Note: This Is A Good Day!!!! :) Isn´t it?\n"
]
}
],
"source": [
"# 3. Removes punctuation marks from a sentence\n",
"\n",
"# given this code\n",
"\n",
"import string\n",
"\n",
"def remove_punctuation_f(sentence):\n",
" return ''.join(char for char in sentence if char not in string.punctuation)\n",
"\n",
"# Modify the code to handle possible errors in Python, \n",
"# it is recommended to use `try-except-else-finally` blocks, \n",
"# incorporate the `raise` keyword where necessary, \n",
"# and print meaningful error messages to alert users of any issues that may occur during program execution.\n",
"\n",
"def remove_punctuation_f_safe(sentence):\n",
" try:\n",
" if not isinstance(sentence, str):\n",
" raise TypeError(\"Input must be a string.\")\n",
" cleaned_sentence = ''.join(char for char in sentence if char not in string.punctuation)\n",
" except TypeError as te:\n",
" print(f\"TypeError: {te}\")\n",
" except Exception as e:\n",
" print(f\"An unexpected error occurred: {e}\")\n",
" else:\n",
" return cleaned_sentence\n",
" finally:\n",
" print(\"Execution of remove_punctuation_f_safe is complete.\")\n",
"\n",
"# Example usage:\n",
"user_input = input(\"\\nPlease enter a sentence with punctuation marks: \")\n",
"cleaned_sentence = remove_punctuation_f_safe(user_input)\n",
"if cleaned_sentence is not None:\n",
" print(f\"\\nCleaned sentence: {cleaned_sentence}\")\n",
" print(f\"\\nYou entered: {user_input}\")\n"
]
},
{
"cell_type": "code",
"execution_count": 22,
"id": "0ed545f3",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Execution of remove_punctuation_f_safe is complete.\n",
"Execution of word_count_f_safe is complete.\n",
"\n",
"Number of words: 9\n",
"\n",
"You entered: Hello World!!! This Is A Good Day!!! :) Isn´t It?\n"
]
}
],
"source": [
"# 4. Counts the number of words in a given sentence after removing punctuation\n",
"\n",
"# given this code\n",
"\n",
"import string\n",
"\n",
"def word_count_f(sentence):\n",
" clean_sentence = remove_punctuation_f(sentence)\n",
" words = clean_sentence.split()\n",
" return len(words)\n",
"\n",
"# Modify the code to handle possible errors in Python, \n",
"# it is recommended to use `try-except-else-finally` blocks, \n",
"# incorporate the `raise` keyword where necessary, \n",
"# and print meaningful error messages to alert users of any issues that may occur during program execution.\n",
"def word_count_f_safe(sentence):\n",
" try:\n",
" if not isinstance(sentence, str):\n",
" raise TypeError(\"Input must be a string.\")\n",
" clean_sentence = remove_punctuation_f_safe(sentence)\n",
" if clean_sentence is None:\n",
" raise ValueError(\"Failed to remove punctuation from the sentence.\")\n",
" words = clean_sentence.split()\n",
" word_count = len(words)\n",
" except TypeError as te:\n",
" print(f\"TypeError: {te}\")\n",
" except ValueError as ve:\n",
" print(f\"ValueError: {ve}\")\n",
" except Exception as e:\n",
" print(f\"An unexpected error occurred: {e}\")\n",
" else:\n",
" return word_count\n",
" finally:\n",
" print(\"Execution of word_count_f_safe is complete.\")\n",
"\n",
"# Example usage:\n",
"user_input = input(\"\\nPlease enter a sentence to count the number of words: \")\n",
"word_count = word_count_f_safe(user_input)\n",
"if word_count is not None:\n",
" print(f\"\\nNumber of words: {word_count}\")\n",
" print(f\"\\nYou entered: {user_input}\")\n"
]
}
],
"metadata": {
"kernelspec": {
"display_name": "Python 3 (ipykernel)",
"display_name": "base",
"language": "python",
"name": "python3"
},
Expand All @@ -66,7 +337,7 @@
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.9.13"
"version": "3.13.5"
}
},
"nbformat": 4,
Expand Down