从 Python3 中的 base64 编码字符串中删除新行“\n”？
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Remove the new line "\n" from base64 encoded strings in Python3?
提问by Mo.
I'm trying to make a HTTPS connection in Python3 and when I try to encode my username and password the base64encodebytesmethod returns the encoded value with a new line character at the end "\n" and because of this I'm getting an error when I try to connect.
我正在尝试在 Python3 中建立 HTTPS 连接，当我尝试对我的用户名和密码进行编码时，该base64encodebytes方法返回编码后的值，并在末尾添加一个换行符“\n”，因此我在以下情况下收到错误我尝试连接。
Is there a way to tell the base64library not to append a new line character when encoding or what is the best way to remove this new line character? I tried using the replacemethod but I get the following error:
有没有办法告诉base64库在编码时不要附加换行符，或者删除这个换行符的最佳方法是什么？我尝试使用该replace方法，但出现以下错误：
Traceback (most recent call last):
File "data_consumer.py", line 33, in <module>
auth_base64 = auth_base64.replace('\n', '')
TypeError: expected bytes, bytearray or buffer compatible object
My code:
我的代码：
auth = b'[email protected]:passWORD'
auth_base64 = base64.encodebytes(auth)
auth_base64 = auth_base64.replace('\n', '')
Any ideas? Thanks
有任何想法吗？谢谢
采纳答案by Mandar Vaze
Instead of encodestringconsider using b64encode. Later does not add \ncharacters. e.g.
而不是encodestring考虑使用b64encode. 后来不加\n字符。例如
In [11]: auth = b'[email protected]:passWORD'
In [12]: base64.encodestring(auth)
Out[12]: b'dXNlcm5hbWVAZG9tYWluLmNvbTpwYXNzV09SRA==\n'
In [13]: base64.b64encode(auth)
Out[13]: b'dXNlcm5hbWVAZG9tYWluLmNvbTpwYXNzV09SRA=='
It produces identical encoded string except the \n
它产生相同的编码字符串，除了 \n
回答by Sarit Adhikari
Following code would work
以下代码将工作
auth_base64 = auth_base64.decode('utf-8').replace('\n', '')
回答by RayLuo
I concur with Mandar's observationthat base64.xxxx_encode()would produce output without line wrap \n.
我同意Mandar 的观察，即base64.xxxx_encode()在没有 line wrap 的情况下会产生输出\n。
For those who want a more confident understanding than merely an observation, these are the official promise (sort of), that I can find on this topic. The Python 3 documentationdoes mention base64.encode(...)would add newlines after every 76 bytes of output. Comparing to that, all other *_encode(...)functions do not mention their linewrap behavior at all, which can argurably be considered as "no line wrap behavior". For what it's worth, the Python 2 documentationdoes not mention anything about line wrap at all.
对于那些想要更自信的理解而不仅仅是观察的人来说，这些是我可以在这个主题上找到的官方承诺（有点）。在Python 3中的文件确实提到base64.encode(...)将每隔76个字节的输出之后添加换行符。相比之下，所有其他*_encode(...)函数根本没有提到它们的换行行为，这可以说是“无换行行为”。就其价值而言，Python 2 文档根本没有提及有关换行的任何内容。
回答by Harsh
for python3 use:-
对于 python3 使用：-
binascii.b2a_base64(cipher_text, newline=False)
binascii.b2a_base64(cipher_text, newline=False)
for python2 use:
对于python2使用：
binascii.b2a_base64(cipher_text)[:-1]
binascii.b2a_base64(cipher_text) [:-1]
