所以我正在学习python并重做一些旧项目。该项目涉及从字典中获取字典和要翻译的消息,并翻译该消息。 (例如:“顺便说一句,你好,你好吗?”将被翻译成“顺便问一下,你好吗”。
我们正在使用教授提供的扫描仪来读取令牌和字符串。如有必要,我也可以在此处发布。这是我的错误:
Nathans-Air-4:py1 Nathan$ python translate.py test.xlt test.msg
Traceback (most recent call last):
File "translate.py", line 26, in <module>
main()
File "translate.py", line 13, in main
dictionary,count = makeDictionary(commandDict)
File "/Users/Nathan/cs150/extra/py1/support.py", line 12, in makeDictionary
string = s.readstring()
File "/Users/Nathan/cs150/extra/py1/scanner.py", line 105, in readstring
return self._getString()
File "/Users/Nathan/cs150/extra/py1/scanner.py", line 251, in _getString
if (delimiter == chr(0x2018)):
ValueError: chr() arg not in range(256)
这是我的主要translate.py文件:
from support import *
from scanner import *
import sys
def main():
arguments = len(sys.argv)
if arguments != 3:
print'Need two arguments!\n'
exit(1)
commandDict = sys.argv[1]
commandMessage = sys.argv[2]
dictionary,count = makeDictionary(commandDict)
message,messageCount = makeMessage(commandMessage)
print(dictionary)
print(message)
i = 0
while count < messageCount:
translation = translate(message[i],dictionary,messageCount)
print(translation)
count = count + 1
i = i +1
main()
这是我正在使用的support.py文件...
from scanner import *
def makeDictionary(filename):
fp = open(filename,"r")
s = Scanner(filename)
lyst = []
token = s.readtoken()
count = 0
while (token != ""):
lyst.append(token)
string = s.readstring()
count = count+1
lyst.append(string)
token = s.readtoken()
return lyst,count
def translate(word,dictionary,count):
i = 0
while i != count:
if word == dictionary[i]:
return dictionary[i+1]
i = i+1
else:
return word
i = i+1
return 0
def makeMessage(filename):
fp = open(filename,"r")
s = Scanner(filename)
lyst2 = []
string = s.readtoken()
count = 0
while (string != ""):
lyst2.append(string)
string = s.readtoken()
count = count + 1
return lyst2,count
有人知道这是怎么回事吗?我已经浏览了好几次,但我不知道为什么readString会引发此错误...我可能错过了一些愚蠢的事情
最佳答案
如果您使用Python 3,chr(0x2018)
将起作用。
您有为Python 3编写的代码,但可以在Python 2中运行。在Python 2中,chr
将为您提供ASCII范围内的一个字符串。这是一个8位字符串,因此chr
的最大参数值为255
。在Python 3中,您将获得一个unicode字符,并且unicode代码点可以达到更高的值。
关于python - Python ValueError:chr()arg不在范围内(256),我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/27327901/