ValueError:需要超过1个值才能解包:艰苦学习Python Ex:41
我正在努力从学习Python的艰苦工作中制作一个脚本。 从6个错误我可以把它归结为一个错误。 但这一个错误我即使尝试了几个小时也无法解决。 这是错误消息: E:\PythonCode>pythonoop\u test.py 回溯(最近一次呼叫最后一次): 文件“oop_test.py”,第72行,在 问题,答案=转换(片段,短语)[0] ValueError:要解压缩的值太多 以下是完整的源代码:ValueError:需要超过1个值才能解包:艰苦学习Python Ex:41,python,python-2.7,Python,Python 2.7,我正在努力从学习Python的艰苦工作中制作一个脚本。 从6个错误我可以把它归结为一个错误。 但这一个错误我即使尝试了几个小时也无法解决。 这是错误消息: E:\PythonCode>pythonoop\u test.py 回溯(最近一次呼叫最后一次): 文件“oop_test.py”,第72行,在 问题,答案=转换(片段,短语)[0] ValueError:要解压缩的值太多 以下是完整的源代码: import random from urllib import urlopen import s
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 *** 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).readlines():
WORDS.append(word.strip())
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[:]
#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
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"
在第39行,你说:
results = []
经过多次操作,在第61行,您最终:
results.append(result)
return results
因此,结果
只能有一个成员。但在第72行(您的错误),您有:
question, answer = convert(snippet,phrase)
正如@AdamSmith在评论中正确指出的那样,您无法从只包含一个项目的列表中解包两个项目。:)