blocks|key|4533252|text|如果您在PyJWT+v2.0.0版本(22/12/2020)之后使用jwt身份验证登录到这里，那么您可能希望在requirements.txt文件中将您的PyJWT版本冻结为以前的版本。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4533253|PyJWT==1.7.1|code-block|syntax|javascript|4533254|entityMap^0|1J|G|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

If you land here using jwt authentication after the PyJWT v2.0.0 release (22/12/2020), you might want to freeze your version of PyJWT to the previous release in your <code>requirements.txt</code> file.
<pre><code>PyJWT==1.7.1
</code></pre>

blocks|key|25422|text|从Python+3开始，所有字符串都是unicode对象。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|25423|++a+=+'Happy+New+Year'+#+Python+3
++b+=+unicode('Happy+New+Year')+#+Python+2|code-block|syntax|javascript|25424|上面的说明是相同的。所以我认为你应该删除.decode('utf-8')部件，因为你已经有了一个unicode对象。|offset|length|style|CODE|25425|entityMap^0|0|0|K|G|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@$I|R|J|S|K|L]]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

Begining with Python 3, all strings are unicode objects.
<pre><code> a = 'Happy New Year' # Python 3
 b = unicode('Happy New Year') # Python 2
</code></pre>
The instructions above are the same. So I think you should remove the <code>.decode('utf-8')</code> part because you already have a unicode object.

blocks|key|25445|text|通过以下方法使用它：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|25446|str.encode().decode()|code-block|syntax|javascript|25447|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 it by this Method:

<pre><code>str.encode().decode()
</code></pre>

blocks|key|4533165|text|对于Python3|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4533166|html+=+"""\\u003Cdiv+id=\\u0022contenedor\\u0022\\u003E+\\u003Ch2+class=\\u0022text-left+m-b-2\\u0022\\u003EInformaci\\u00f3n+del+veh\\u00edculo+de+patente+AA345AA\\u003C\\/h2\\u003E\\n\\n\\n\\n+\\u003Cdiv+class=\\u0022panel+panel-default+panel-disabled+m-b-2\\u0022\\u003E\\n+\\u003Cdiv+class=\\u0022panel-body\\u0022\\u003E\\n+\\u003Ch2+class=\\u0022table_title+m-b-2\\u0022\\u003EInformaci\\u00f3n+del+Registro+Automotor\\u003C\\/h2\\u003E\\n+\\u003Cdiv+class=\\u0022col-md-6\\u0022\\u003E\\n+\\u003Clabel+class=\\u0022control-label\\u0022\\u003ERegistro+Seccional\\u003C\\/label\\u003E\\n+\\u003Cp\\u003ESAN+MIGUEL+N\\u00b0+1\\u003C\\/p\\u003E\\n+\\u003Clabel+class=\\u0022control-label\\u0022\\u003EDirecci\\u00f3n\\u003C\\/label\\u003E\\n+\\u003Cp\\u003EMAESTRO+ANGEL+D\\u0027ELIA+766\\u003C\\/p\\u003E\\n+\\u003Clabel+class=\\u0022control-label\\u0022\\u003EPiso\\u003C\\/label\\u003E\\n+\\u003Cp\\u003EPB\\u003C\\/p\\u003E\\n+\\u003Clabel+class=\\u0022control-label\\u0022\\u003EDepartamento\\u003C\\/label\\u003E\\n+\\u003Cp\\u003E-\\u003C\\/p\\u003E\\n+\\u003Clabel+class=\\u0022control-label\\u0022\\u003EC\\u00f3digo+postal\\u003C\\/label\\u003E\\n+\\u003Cp\\u003E1663\\u003C\\/p\\u003E\\n+\\u003C\\/div\\u003E\\n+\\u003Cdiv+class=\\u0022col-md-6\\u0022\\u003E\\n+\\u003Clabel+class=\\u0022control-label\\u0022\\u003ELocalidad\\u003C\\/label\\u003E\\n+\\u003Cp\\u003ESAN+MIGUEL\\u003C\\/p\\u003E\\n+\\u003Clabel+class=\\u0022control-label\\u0022\\u003EProvincia\\u003C\\/label\\u003E\\n+\\u003Cp\\u003EBUENOS+AIRES\\u003C\\/p\\u003E\\n+\\u003Clabel+class=\\u0022control-label\\u0022\\u003ETel\\u00e9fono\\u003C\\/label\\u003E\\n+\\u003Cp\\u003E(11)46646647\\u003C\\/p\\u003E\\n+\\u003Clabel+class=\\u0022control-label\\u0022\\u003EHorario\\u003C\\/label\\u003E\\n+\\u003Cp\\u003E08:30+a+12:30\\u003C\\/p\\u003E\\n+\\u003C\\/div\\u003E\\n+\\u003C\\/div\\u003E\\n\\u003C\\/div\\u003E+\\n\\n\\u003Cp+class=\\u0022text-center+m-t-3+m-b-1+hidden-print\\u0022\\u003E\\n+\\u003Ca+href=\\u0022javascript:window.print();\\u0022+class=\\u0022btn+btn-default\\u0022\\u003EImprim\\u00ed+la+consulta\\u003C\\/a\\u003E+\\u0026nbsp;+\\u0026nbsp;\\n+\\u003Ca+href=\\u0022\\u0022+class=\\u0022btn+use-ajax+btn-primary\\u0022\\u003EHacer+otra+consulta\\u003C\\/a\\u003E\\n\\u003C\\/p\\u003E\\n\\u003C\\/div\\u003E"""|code-block|syntax|javascript|4533167|print(html.replace("\\/",+"/").encode().decode('unicode_escape'))|4533168|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|D|7|M|8|@]|9|@]|A|$E|F]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

For Python3

<pre><code>html = """\\u003Cdiv id=\\u0022contenedor\\u0022\\u003E \\u003Ch2 class=\\u0022text-left m-b-2\\u0022\\u003EInformaci\\u00f3n del veh\\u00edculo de patente AA345AA\\u003C\\/h2\\u003E\\n\\n\\n\\n \\u003Cdiv class=\\u0022panel panel-default panel-disabled m-b-2\\u0022\\u003E\\n \\u003Cdiv class=\\u0022panel-body\\u0022\\u003E\\n \\u003Ch2 class=\\u0022table_title m-b-2\\u0022\\u003EInformaci\\u00f3n del Registro Automotor\\u003C\\/h2\\u003E\\n \\u003Cdiv class=\\u0022col-md-6\\u0022\\u003E\\n \\u003Clabel class=\\u0022control-label\\u0022\\u003ERegistro Seccional\\u003C\\/label\\u003E\\n \\u003Cp\\u003ESAN MIGUEL N\\u00b0 1\\u003C\\/p\\u003E\\n \\u003Clabel class=\\u0022control-label\\u0022\\u003EDirecci\\u00f3n\\u003C\\/label\\u003E\\n \\u003Cp\\u003EMAESTRO ANGEL D\\u0027ELIA 766\\u003C\\/p\\u003E\\n \\u003Clabel class=\\u0022control-label\\u0022\\u003EPiso\\u003C\\/label\\u003E\\n \\u003Cp\\u003EPB\\u003C\\/p\\u003E\\n \\u003Clabel class=\\u0022control-label\\u0022\\u003EDepartamento\\u003C\\/label\\u003E\\n \\u003Cp\\u003E-\\u003C\\/p\\u003E\\n \\u003Clabel class=\\u0022control-label\\u0022\\u003EC\\u00f3digo postal\\u003C\\/label\\u003E\\n \\u003Cp\\u003E1663\\u003C\\/p\\u003E\\n \\u003C\\/div\\u003E\\n \\u003Cdiv class=\\u0022col-md-6\\u0022\\u003E\\n \\u003Clabel class=\\u0022control-label\\u0022\\u003ELocalidad\\u003C\\/label\\u003E\\n \\u003Cp\\u003ESAN MIGUEL\\u003C\\/p\\u003E\\n \\u003Clabel class=\\u0022control-label\\u0022\\u003EProvincia\\u003C\\/label\\u003E\\n \\u003Cp\\u003EBUENOS AIRES\\u003C\\/p\\u003E\\n \\u003Clabel class=\\u0022control-label\\u0022\\u003ETel\\u00e9fono\\u003C\\/label\\u003E\\n \\u003Cp\\u003E(11)46646647\\u003C\\/p\\u003E\\n \\u003Clabel class=\\u0022control-label\\u0022\\u003EHorario\\u003C\\/label\\u003E\\n \\u003Cp\\u003E08:30 a 12:30\\u003C\\/p\\u003E\\n \\u003C\\/div\\u003E\\n \\u003C\\/div\\u003E\\n\\u003C\\/div\\u003E \\n\\n\\u003Cp class=\\u0022text-center m-t-3 m-b-1 hidden-print\\u0022\\u003E\\n \\u003Ca href=\\u0022javascript:window.print();\\u0022 class=\\u0022btn btn-default\\u0022\\u003EImprim\\u00ed la consulta\\u003C\\/a\\u003E \\u0026nbsp; \\u0026nbsp;\\n \\u003Ca href=\\u0022\\u0022 class=\\u0022btn use-ajax btn-primary\\u0022\\u003EHacer otra consulta\\u003C\\/a\\u003E\\n\\u003C\\/p\\u003E\\n\\u003C\\/div\\u003E"""
</code></pre>

<pre><code>print(html.replace("\\/", "/").encode().decode('unicode_escape'))
</code></pre>

blocks|key|25486|text|我不熟悉这个库，但是如果你的问题是你不想要一个字节数组，一个简单的方法是在cast中直接指定一个编码类型：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|25487|>>>+my_byte_str
b'Hello+World'

>>>+str(my_byte_str,+'utf-8')
'Hello+World'|code-block|syntax|javascript|25488|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|$]]

I'm not familiar with the library, but if your problem is that you don't want a byte array, one easy way is to specify an encoding type straight in a cast:

<pre><code>&gt;&gt;&gt; my_byte_str
b'Hello World'

&gt;&gt;&gt; str(my_byte_str, 'utf-8')
'Hello World'
</code></pre>

blocks|key|25519|text|它已经在Python3中解码了，直接试试它应该可以工作。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|25520|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

It s already decoded in Python3, Try directly it should work.

blocks|key|4533226|text|这对我很有效：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4533227|html.replace("\\/",+"/").encode().decode('unicode_escape',+'surrogatepass')|code-block|syntax|javascript|4533228|这类似于json.loads(html)的行为|4533229|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

This worked for me:
<pre><code>html.replace(&quot;\\/&quot;, &quot;/&quot;).encode().decode('unicode_escape', 'surrogatepass')
</code></pre>
This is similar to json.loads(html) behaviour

blocks|key|4533274|text|如果任何人在参与物流REgre的Kaggle时遇到同样的错误，以下是解决方案：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4533275|logmodel+=+LogisticRegression(solver='liblinear')|code-block|syntax|javascript|4533276|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|$]]

If anyone getting the same error while participating in Kaggle for a Logistic REgre, here is the solution :
<pre class="lang-py prettyprint-override"><code>logmodel = LogisticRegression(solver='liblinear')
</code></pre>

blocks|key|4533212|text|使用codecs模块的open()读取文件：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4533213|import+codecs
with+codecs.open(file_name,+'r',+encoding='utf-8',+errors='ignore')+as+fdata:|code-block|syntax|javascript|4533214|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 codecs module's open() to read file:
<pre><code>import codecs
with codecs.open(file_name, 'r', encoding='utf-8', errors='ignore') as fdata:
</code></pre>

blocks|key|4533194|text|其他答案似乎暗示了这一点，但这个问题可能是因为期望字节对象而出现的。在Python+3中，当你有一个字节类的对象时，decode是有效的。在解码之前运行encode可能会“修复”问题，但这是一对无用的操作，提示我们上游的问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4533195|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Other answers sort of hint at it, but the problem may arise from expecting a bytes object. In Python 3, decode is valid when you have an object of class bytes. Running encode before decode may "fix" the problem, but it is a useless pair of operations that suggest the problem us upstream.

blocks|key|4533296|text|如果您正在使用Django和simple-jwt:这是您的100%25解决方案|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4533297|pip+install+PyJWT==1.7.1|code-block|syntax|javascript|4533298|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|$]]

If you are working with Django and simple-jwt:
Here is your 100% solution
<pre><code>pip install PyJWT==1.7.1
</code></pre>

blocks|key|4533412|text|我的情况可能有点罕见，但我正在使用django，我的项目在本地运行，但当我部署它时，似乎收到了多个依赖项错误，因为我正在做：pip+freeze+>+requirements.txt这样做解决了这个问题：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4533413|pip3+freeze+>+requirements.txt|code-block|syntax|javascript|4533414|entityMap^0|1Q|T|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

my case may have been a bit rare but I was working with django and my project was running locally but not when I deployed it, it seemed as though I was getting multiple dependency errors because I was doing: <code>pip freeze &gt; requirements.txt</code> doing this fixed the issue:
<pre><code>pip3 freeze &gt; requirements.txt
</code></pre>

Here is my code:

<pre><code>import imaplib
from email.parser import HeaderParser

conn = imaplib.IMAP4_SSL('imap.gmail.com')
conn.login('example@gmail.com', 'password')
conn.select()
conn.search(None, 'ALL')
data = conn.fetch('1', '(BODY[HEADER])')
header_data = data[1][0][1].decode('utf-8')
</code></pre>

at this point I get the error message 

<pre><code>AttributeError: 'str' object has no attribute 'decode'
</code></pre>

Python 3 doesn't have decode anymore, am I right? how can I fix this? 

Also, in:

<pre><code>data = conn.fetch('1', '(BODY[HEADER])')
</code></pre>

I am selecting only the 1st email. How do I select all?

'str' object has no attribute 'decode'. Python 3 error?

身份验证

Django

Python

下面是我的代码：import imaplibfrom email.parser import HeaderParserconn = imaplib.IMAP4_SSL('imap.gmail.com')conn.login('example@gmail.com', 'password')conn.select()conn.search(None, 'ALL')data = conn.fetch('

问“‘str”对象没有属性“decode”。Python 3错误？
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问“‘str”对象没有属性“decode”。Python 3错误？
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