Python 尝试加密和写入文件时出现 UnicodeEncodeError

Question

second post 这里（在同一代码上）。然而这次是一个不同的问题。它只是偶尔发生，但它让我困惑为什么。这是输出和错误：

Phrase to be encrypted: Hello world
Shift keyword, Word only: Hello

:-) :-) :-) Encrypting Phrase 10%... :-) :-) :-) 
:-) :-) :-) Encrypting Phrase 20%... :-) :-) :-) 
:-) :-) :-) Encrypting Phrase 30%... :-) :-) :-) 
:-) :-) :-) Encrypting Phrase 40%... :-) :-) :-) 
:-) :-) :-) Encrypting Phrase 50%... :-) :-) :-) 
:-) :-) :-) Encrypting Phrase 60%... :-) :-) :-) 
:-) :-) :-) Encrypting Phrase 70%... :-) :-) :-) 
:-) :-) :-) Encrypting Phrase 80%... :-) :-) :-) 
:-) :-) :-) Encrypting Phrase 90%... :-) :-) :-) 
:-) :-) :-) Encrypting Phrase 100%... :-) :-) :-) 
:-) :-) :-) Checking Security of encrypted phrase.... :-) :-) :-) 
:-) :-) :-) Done! :-) :-) :-) 

Here is your Encrypted Phrase:I?j!Qgea:~~[
Traceback (most recent call last):
  File "C:\Users\Isaac Scarisbrick\Downloads\Keyword Cipher_1.py", line 60, in <module>
    file.write (str(result) + " " + (Cipher))
  File "C:\Users\Isaac Scarisbrick\AppData\Local\Programs\Python\Python35-32\lib\encodings\cp1252.py", line 19, in encode
    return codecs.charmap_encode(input,self.errors,encoding_table)[0]
UnicodeEncodeError: 'charmap' codec can't encode characters in position 2-3: character maps to <undefined>

这是我的代码：

import random

phrase = input('Phrase to be encrypted: ')
shift_key = input("Shift keyword, Word only: ")

Encryption_Base = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890,./;:<>?'@#~]}[{=+-_)(*&^%$£!`¬\|"
key_encryption = random.randint(0, 94)
Cipher = ''

for c in shift_key:
        if c in Encryption_Base:
            Cipher += Encryption_Base[(Encryption_Base.index(c)+key_encryption)%(len(Encryption_Base))]

def Keyword_Encryption(key, phrase):

    if len(phrase) > len(key):
        while len(phrase) > len(key):
            length_to_add = len(phrase) - len(key)
            key = key + key[0:length_to_add]

    elif len(phrase) < len(key):
        while len(phrase) < len(key):
            length_to_sub = len(key) - (len(key) - len(phrase))
            key = key[0:length_to_sub]

    else:
        pass

    shifted_phrase = ''
    for i in range(len(phrase)):
        new_letter = (ord(key[i]) - 96) + (ord(phrase[i]) - 96) + 96
        if new_letter > 1220:
            new_letter = chr(new_letter - 26)

        else:
            new_letter = chr(new_letter)

        shifted_phrase = shifted_phrase + new_letter
    return shifted_phrase

result = Keyword_Encryption(Cipher, phrase)
print (" ")
print (":-) " * 3 + "Encrypting Phrase 10%... " + ":-) " * 3)
print (":-) " * 3 + "Encrypting Phrase 20%... " + ":-) " * 3)
print (":-) " * 3 + "Encrypting Phrase 30%... " + ":-) " * 3)
print (":-) " * 3 + "Encrypting Phrase 40%... " + ":-) " * 3)
print (":-) " * 3 + "Encrypting Phrase 50%... " + ":-) " * 3)
print (":-) " * 3 + "Encrypting Phrase 60%... " + ":-) " * 3)
print (":-) " * 3 + "Encrypting Phrase 70%... " + ":-) " * 3)
print (":-) " * 3 + "Encrypting Phrase 80%... " + ":-) " * 3)
print (":-) " * 3 + "Encrypting Phrase 90%... " + ":-) " * 3)
print (":-) " * 3 + "Encrypting Phrase 100%... " + ":-) " * 3)
print (":-) " * 3 + "Checking Security of encrypted phrase.... " + ":-) " * 3)
print (":-) " * 3 + "Done! " + ":-) " * 3)
print (" ")
print ('Here is your Encrypted Phrase:' + (result) + (Cipher))

file = open("Encrypted.txt", "w")
file.write (str(result) + " " + (Cipher))
file.close()

提前非常感谢您，因为这是我在 A level class 中设置的任务的一个小扩展。这里有一些代码片段，您之前可能已经看过，因为我从中提取了一些在 python 中制作的加密程序。谢谢你的时间:)。

编辑：如果这有帮助，它有时也会抛出此错误：

Phrase to be encrypted: Hello World
Shift keyword, Word only: Hello
Traceback (most recent call last):
  File "C:\Users\Isaac Scarisbrick\Downloads\Keyword Cipher_1.py", line 42, in <module>
    result = Keyword_Encryption(Cipher, phrase)
  File "C:\Users\Isaac Scarisbrick\Downloads\Keyword Cipher_1.py", line 37, in Keyword_Encryption
    new_letter = chr(new_letter)
ValueError: chr() arg not in range(0x110000)

Answer 1

好的。所以任何其他查看此 post 的人都知道。您需要做的就是输入

import codecs

在顶部然后当你写文件类型时

encoding = "utf8"

里面写括号。希望我对你的问题有所帮助，感谢所有帮助我得出这个结论的人:-)。

Python 尝试加密和写入文件时出现 UnicodeEncodeError

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