• May 31, 2023 •CodeCatch
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import itertools def compute_permutations(string): # Generate all permutations of the string permutations = itertools.permutations(string) # Convert each permutation tuple to a string permutations = [''.join(permutation) for permutation in permutations] return permutations # Prompt the user for a string string = input("Enter a string: ") # Compute permutations permutations = compute_permutations(string) # Display the permutations print("Permutations:") for permutation in permutations: print(permutation)
• Nov 19, 2022 •CodeCatch
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from collections import defaultdict def collect_dictionary(obj): inv_obj = defaultdict(list) for key, value in obj.items(): inv_obj[value].append(key) return dict(inv_obj) ages = { 'Peter': 10, 'Isabel': 10, 'Anna': 9, } collect_dictionary(ages) # { 10: ['Peter', 'Isabel'], 9: ['Anna'] }
• Apr 15, 2021 •NoahEaton
import anytree as at import random as rm # Generate a tree with node_count many nodes. Each has a number key that shows when it was made and a randomly selected color, red or white. def random_tree(node_count): # Generates the list of nodes nodes = [] for i in range(node_count): test = rm.randint(1,2) if test == 1: nodes.append(at.Node(str(i),color="white")) else: nodes.append(at.Node(str(i),color="red")) #Creates the various main branches for i in range(node_count): for j in range(i, len(nodes)): test = rm.randint(1,len(nodes)) if test == 1 and nodes[j].parent == None and (not nodes[i] == nodes[j]): nodes[j].parent = nodes[i] #Collects all the main branches into a single tree with the first node being the root for i in range(1, node_count): if nodes[i].parent == None and (not nodes[i] == nodes[0]): nodes[i].parent = nodes[0] return nodes[0]
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""" Currency Converter ---------------------------------------- """ import urllib.request import json def currency_converter(currency_from, currency_to, currency_input): yql_base_url = "https://query.yahooapis.com/v1/public/yql" yql_query = 'select%20*%20from%20yahoo.finance.xchange%20where%20pair' \ '%20in%20("'+currency_from+currency_to+'")' yql_query_url = yql_base_url + "?q=" + yql_query + "&format=json&env=store%3A%2F%2Fdatatables.org%2Falltableswithkeys" try: yql_response = urllib.request.urlopen(yql_query_url) try: json_string = str(yql_response.read()) json_string = json_string[2: json_string = json_string[:-1] print(json_string) yql_json = json.loads(json_string) last_rate = yql_json['query']['results']['rate']['Rate'] currency_output = currency_input * float(last_rate) return currency_output except (ValueError, KeyError, TypeError): print(yql_query_url) return "JSON format error" except IOError as e: print(str(e)) currency_input = 1 #currency codes : http://en.wikipedia.org/wiki/ISO_4217 currency_from = "USD" currency_to = "TRY" rate = currency_converter(currency_from, currency_to, currency_input) print(rate)
• Jun 1, 2023 •CodeCatch
filename = "data.txt" data = "Hello, World!" with open(filename, "a") as file: file.write(data)
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""" Number Guessing Game ---------------------------------------- """ import random attempts_list = [] def show_score(): if len(attempts_list) <= 0: print("There is currently no high score, it's yours for the taking!") else: print("The current high score is {} attempts".format(min(attempts_list))) def start_game(): random_number = int(random.randint(1, 10)) print("Hello traveler! Welcome to the game of guesses!") player_name = input("What is your name? ") wanna_play = input("Hi, {}, would you like to play the guessing game? (Enter Yes/No) ".format(player_name)) // Where the show_score function USED to be attempts = 0 show_score() while wanna_play.lower() == "yes": try: guess = input("Pick a number between 1 and 10 ") if int(guess) < 1 or int(guess) > 10: raise ValueError("Please guess a number within the given range") if int(guess) == random_number: print("Nice! You got it!") attempts += 1 attempts_list.append(attempts) print("It took you {} attempts".format(attempts)) play_again = input("Would you like to play again? (Enter Yes/No) ") attempts = 0 show_score() random_number = int(random.randint(1, 10)) if play_again.lower() == "no": print("That's cool, have a good one!") break elif int(guess) > random_number: print("It's lower") attempts += 1 elif int(guess) < random_number: print("It's higher") attempts += 1 except ValueError as err: print("Oh no!, that is not a valid value. Try again...") print("({})".format(err)) else: print("That's cool, have a good one!") if __name__ == '__main__': start_game()