blocks|key|126449|text|事实证明，这一点非常重要，可以让it's+own+module...|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|126450|import+base64
base64.b64encode(b'your+name')++#+b'eW91ciBuYW1l'
base64.b64encode('your+name'.encode('ascii'))++#+b'eW91ciBuYW1l'|code-block|syntax|javascript|126451|entityMap|0|LINK|mutability|MUTABLE|url|https://docs.python.org/2/library/base64.html^0|G|F|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@$A|R|B|S|1|T]]|C|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|C|$G|H]]|$1|I|3|-4|5|6|7|V|8|@]|9|@]|C|$]]]|J|$K|$5|L|M|N|C|$O|P]]]]

It turns out that this is important enough to get <a href="https://docs.python.org/2/library/base64.html" rel="noreferrer">it's own module</a>...

<pre><code>import base64
base64.b64encode(b'your name') # b'eW91ciBuYW1l'
base64.b64encode('your name'.encode('ascii')) # b'eW91ciBuYW1l'
</code></pre>

blocks|key|126467|text|记住要导入base64，并且b64encode以字节作为参数。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|126468|import+base64
base64.b64encode(bytes('your+string',+'utf-8'))|code-block|syntax|javascript|126469|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Remember to import base64 and that b64encode takes bytes as an argument.

<pre><code>import base64
base64.b64encode(bytes('your string', 'utf-8'))
</code></pre>

blocks|key|4632735|text|1)在没有导入的情况下，Python+2：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4632736|>>>
>>>+'Some+text'.encode('base64')
'U29tZSB0ZXh0\n'
>>>
>>>+'U29tZSB0ZXh0\n'.decode('base64')
'Some+text'
>>>
>>>+'U29tZSB0ZXh0'.decode('base64')
'Some+text'
>>>|code-block|syntax|javascript|4632737|(尽管这在Python3中不起作用)|4632738|2)在Python3中，你必须导入base64并执行base64.b64decode('...')+--在Python2中也可以。|4632739|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

1) This works without imports in Python 2:

<pre><code>&gt;&gt;&gt;
&gt;&gt;&gt; 'Some text'.encode('base64')
'U29tZSB0ZXh0\n'
&gt;&gt;&gt;
&gt;&gt;&gt; 'U29tZSB0ZXh0\n'.decode('base64')
'Some text'
&gt;&gt;&gt;
&gt;&gt;&gt; 'U29tZSB0ZXh0'.decode('base64')
'Some text'
&gt;&gt;&gt;
</code></pre>

(although this doesn't work in Python3 )

2) In Python 3 you'd have to import base64 and do base64.b64decode('...')
- will work in Python 2 too.

blocks|key|126515|text|与py2和py3兼容|type|unstyled|depth|inlineStyleRanges|entityRanges|data|126516|import+six
import+base64

def+b64encode(source):
++++if+six.PY3:
++++++++source+=+source.encode('utf-8')
++++content+=+base64.b64encode(source).decode('utf-8')|code-block|syntax|javascript|126517|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

To compatibility with both py2 and py3

<pre><code>import six
import base64

def b64encode(source):
 if six.PY3:
 source = source.encode('utf-8')
 content = base64.b64encode(source).decode('utf-8')
</code></pre>

blocks|key|126542|text|使用以下代码：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|126543|import+base64

#Taking+input+through+the+terminal.
welcomeInput=+raw_input("Enter+1+to+convert+String+to+Base64,+2+to+convert+Base64+to+String:+")+

if(int(welcomeInput)==1+or+int(welcomeInput)==2):
++++#Code+to+Convert+String+to+Base+64.
++++if+int(welcomeInput)==1:
++++++++inputString=+raw_input("Enter+the+String+to+be+converted+to+Base64:")+
++++++++base64Value+=+base64.b64encode(inputString.encode())
++++++++print+"Base64+Value+=+"+%2B+base64Value
++++#Code+to+Convert+Base+64+to+String.
++++elif+int(welcomeInput)==2:
++++++++inputString=+raw_input("Enter+the+Base64+value+to+be+converted+to+String:")+
++++++++stringValue+=+base64.b64decode(inputString).decode('utf-8')
++++++++print+"Base64+Value+=+"+%2B+stringValue

else:
++++print+"Please+enter+a+valid+value."|code-block|syntax|javascript|126544|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Use the below code: 

<pre><code>import base64

#Taking input through the terminal.
welcomeInput= raw_input("Enter 1 to convert String to Base64, 2 to convert Base64 to String: ") 

if(int(welcomeInput)==1 or int(welcomeInput)==2):
 #Code to Convert String to Base 64.
 if int(welcomeInput)==1:
 inputString= raw_input("Enter the String to be converted to Base64:") 
 base64Value = base64.b64encode(inputString.encode())
 print "Base64 Value = " + base64Value
 #Code to Convert Base 64 to String.
 elif int(welcomeInput)==2:
 inputString= raw_input("Enter the Base64 value to be converted to String:") 
 stringValue = base64.b64decode(inputString).decode('utf-8')
 print "Base64 Value = " + stringValue

else:
 print "Please enter a valid value."
</code></pre>

blocks|key|4632826|text|即使在对base64编码的字符串调用base64.b64decode之后，调用decode()函数来利用实际的字符串数据也是很有必要的。因为永远不会忘记它总是返回字节字面量。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4632827|import+base64
conv_bytes+=+bytes('your+string',+'utf-8')
print(conv_bytes)+++++++++++++++++++++++++++++++++#+b'your+string'
encoded_str+=+base64.b64encode(conv_bytes)
print(encoded_str)++++++++++++++++++++++++++++++++#+b'eW91ciBzdHJpbmc='
print(base64.b64decode(encoded_str))++++++++++++++#+b'your+string'
print(base64.b64decode(encoded_str).decode())+++++#+your+string|code-block|syntax|javascript|4632828|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

It looks it's essential to call decode() function to make use of actual string data even after calling base64.b64decode over base64 encoded string. Because never forget it always return bytes literals.

<pre><code>import base64
conv_bytes = bytes('your string', 'utf-8')
print(conv_bytes) # b'your string'
encoded_str = base64.b64encode(conv_bytes)
print(encoded_str) # b'eW91ciBzdHJpbmc='
print(base64.b64decode(encoded_str)) # b'your string'
print(base64.b64decode(encoded_str).decode()) # your string
</code></pre>

blocks|key|4632896|text|对于py3、base64+encode和decode字符串：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4632897|import+base64

def+b64e(s):
++++return+base64.b64encode(s.encode()).decode()


def+b64d(s):
++++return+base64.b64decode(s).decode()|code-block|syntax|javascript|4632898|entityMap^0|2|3|D|6|K|6|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]|$9|P|A|Q|B|C]|$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|T|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|U|8|@]|D|@]|E|$]]]|L|$]]

For <code>py3</code>, base64 <code>encode</code> and <code>decode</code> string:
<pre><code>import base64

def b64e(s):
 return base64.b64encode(s.encode()).decode()


def b64d(s):
 return base64.b64decode(s).decode()
</code></pre>

I am trying to encode a text string to base64.

i tried doing this :

<pre><code>name = "your name"
print('encoding %s in base64 yields = %s\n'%(name,name.encode('base64','strict')))
</code></pre>

But this gives me the following error:

<pre><code>LookupError: 'base64' is not a text encoding; use codecs.encode() to handle arbitrary codecs
</code></pre>

How do I go about doing this ? ( using Python 3.4)

How to encode text to base64 in python

Python

我正在尝试将一个文本字符串编码为base64。我试过这样做：name = "your name"print('encoding %s in base64 yields = %s\n'%(name,name.encode('base64','strict')))但这会给出以下错误：LookupError: 'base64...

问如何在python中将文本编码为base64
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