import random
from urllib 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 *** parameters.",
"class %%%(object):\n\tdef ***(self,@@@)":
"class %%% has-a function named *** that takes self and @@@ parameters.",
" = %%%()":
"Set *** to an instance of class %%%.",
".(@@@)":
"From *** get the *** function, and call it with parameters self, @@@.",
". = ''":
"From *** get the *** attribute and set it to ''."
}

do they want to drill phrases first

PHRASE_FIRST = False
if len(sys.argv) == 2 and sys.argv[1] == "english":
PHRASE_FIRST = True

load up the words from the website

for word in urlopen(WORD_URL).readline():
WORDS.append(word.strip())

def convert (snippet,phrase):
class_names = [w.capitalize() for w in
random.sample(WORDS,snippet.court("%%%"))]
other_names = random.sample(WORDS,snippet.count("***"))
result = []
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[:]

#fake class names
for word in class_names:
    result = result.replace("%%%",word,1)

#fake other names
for word in other_names:
    result = result.replace("***",words,1)

#fake parameter lists
for word in para_names:
    result = result.replace("@@@",word,1)

result.append(result)

return results

keep going until they hit CTRL-D

try:
while True:
snippets = 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

        raw_input(">")
        print "ANSWER: %s\n\n" % answer

except EOFError:
print"\nBye"

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意外的错误, 可以尝试使用Pycharm这类IDE.

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额，你把count打成court了。