Learning Circle : python #9 - ex40, ex41

youngjin.han/learning-node02-2020.org

@@ -1,3 +1,11 @@
+* 2020-06-10
+*** Python #8:
+**** DONE Lecture content
+     CLOSED: [2020-06-11 목 00:00]
+     - Same structure as "Python #2"
+     - Exercises 40-41
+**** Lecture material
+     - Available on https://cloud.ungleich.ch/s/435FyfrQyEq6oF3
 * 2020-06-08
 *** Python #7:
 **** DONE Lecture content

youngjin.han/python-the-hard-way/ex40a.py

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+#mystuff = {'apple': "I AM APPLES!"}
+#print(mystuff['apple'])
+#
+#import mystuff
+#mystuff.apple()
+#
+#import mystuff
+#
+#mystuff.apple()
+#print(mystuff.tangerine)
+#
+#mystuff['apple'] # get apple from dict
+#mystuff.apple() # get apple from the module
+#mystuff.tangerine # same thing, it's just a variable
+#
+#class MyStuff(object):
+#
+#    def __init__(self):
+#        self.tangerine = "And now a thousand years between"
+#
+#    def apple(self):
+#        print("I AM CLASSY APPLES!")
+#
+#thing = MyStuff()
+#thing.apple()
+#print(thing.tangerine)
+#
+## dict style
+#mystuff['apples']
+#
+## module style
+#mystuff.apples()
+#print(mystuff.tangerine)
+#
+## class style
+#thing = MyStuff()
+#thing.apples()
+#print(thing.tangerine)
+#
+class Song(object):
+
+    def __init__(self, lyrics):
+        self.lyrics = lyrics
+
+    def sing_me_a_song(self):
+        for line in self.lyrics:
+            print(line)
+
+happy_bday = Song(["Happy birthday to you",
+                   "I don't want to get sued",
+                   "So I'll stop right there"])
+
+bulls_on_parade = Song(["They rally around tha family",
+                        "With pockets full of shells"])
+
+happy_bday.sing_me_a_song()
+
+bulls_on_parade.sing_me_a_song()

youngjin.han/python-the-hard-way/ex41.py

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+import random
+from urllib.request import urlopen
+import sys
+
+WORD_URL = "http://learncodethehardway.org/words.txt"
+WORDS = []
+
+PHRASES = {
+    "class %%%(%%%):":
+    "Make a class named %%% that is-a %%%.",
+    "class %%%(object):\n\tdef __init__(self, ***)" :
+    "class %%% has-a __init__ that takes self and *** params.",
+    "class %%%(object):\n\tdef ***(self, @@@)":
+    "class %%% has-a function *** that takes self and @@@ params.",
+    "*** = %%%()":
+    "Set *** to an instance of class %%%.",
+    "***.***(@@@)":
+    "From *** get the *** function, call it with params self, @@@.",
+    "***.*** = '***'":
+    "From *** get the *** attribute and set it to '***'."
+}
+
+# do they want to drill phrases first
+if len(sys.argv) == 2 and sys.argv[1] == "english":
+    PHRASE_FIRST = True
+else:
+    PHRASE_FIRST = False
+
+# load up the words from the website
+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:
+        # this is how you duplicate a list or string
+        result = sentence[:]
+
+        # fake class names
+        for word in class_names:
+            result = result.replace("%%%", word, 1)
+
+        # fake other names
+        for word in other_names:
+            result = result.replace("***", word, 1)
+
+        # fake parameter lists
+        for word in param_names:
+            result = result.replace("@@@", word, 1)
+
+        results.append(result)
+
+    return results
+
+
+# keep going until they hit CTRL-D
+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"ANSWER: {answer}\n\n")
+except EOFError:
+    print("\nBye")

youngjin.han/python-the-hard-way/mystuff.py

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+def apple():
+    print("I AM APPLES!")
+
+# this is just a variable
+tangerine = "Living reflection of a dream"

youngjin.han/python.org

@@ -1,3 +1,9 @@
+* 2020-06-10
+** note
+  - ex40.py
+    - none
+  - ex40.py
+    - none
 * 2020-06-08
 ** note
   - ex37.py