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ex41.py
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#Uczymy się mówic obiektowo
import random
from urllib.request import urlopen
import sys
WORD_URL = "http://learncodethehardway.org/words.txt"
WORDS = []
PHRASES = {
"class %%%(%%%):":
"Utwórz klasę o nazwie %%%, ktora jest %%%.",
"class %%%(object):\n\tdef __init__(self, ***)":
"Klasa %%% ma __init__, które przyjmuje parametry self i ***.",
"class %%%(object):\n\tdef ***(self, @@@)":
"Klasa %%% ma funkcję ***, która przyjmuje parametry self i @@@.",
"*** = %%%()":
"Ustaw *** na instancję klasy %%%. ",
"*** = %%%(@@@)":
"Z *** weź funkcję *** i wywołaj ja z parametrami self, @@@.",
"***.*** = '***'":
"Z *** weź atrybut *** i ustaw go na '***'."
}
#czy chcemy najpierw poćwiczyć wyrażenia
if len(sys.argv) == 2 and sys.argv[1] == "polski":
PHRASE_FIRST = True
else:
PHRASE_FIRST = False
#ładujemy słowa ze strony internetowej
for word in urlopen(WORD_URL).readlines():
WORDS.append(str(word.strip(), encoding="utf-8"))
def convert(snippet, phrase):
class_names = [w.capitalize() for w in
random.sample(WORDS, snippet.count("%%%"))]
other_names = random.sample(WORDS, snippet.count("***"))
results = []
param_names = []
for i in range(0, snippet.count("@@@")):
param_count = random.randint(1,3)
param_names.append(', '.join(random.sample(WORDS, param_count)))
for sentence in snippet, phrase:
result = sentence[:]
#podstawiamy nazwy klas
for word in class_names:
result = result.replace("%%%", word, 1)
#podstawimy pozastałe nazwy
for word in other_names:
result = result.replace("***", word, 1)
#podstawiamy listy parametrów
for word in param_names:
result = result.replace("@@@", word, 1)
results.append(result)
return results
#kontynujemy, aż użytkownik nie wciśnie Ctrl + D (lub Ctrl+Z w systemie Windows)
try:
while True:
snippets = list(PHRASES.keys())
random.shuffle(snippets)
for snippet in snippets:
phrase = PHRASES[snippet]
question, answer = convert(snippet, phrase)
if PHRASE_FIRST:
question, answer = answer, question
print(question)
input("> ")
print(f"ODPOWIEDŹ: {answer}\n\n")
except EOFError:
print("\nDo widzenia")