blocks|key|405628|text|我推荐使用令人难以置信的requests模块。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|405629|http://docs.python-requests.org/en/v0.10.7/user/quickstart/#custom-headers|405630|url+=+'https://api.github.com/some/endpoint'
payload+=+{'some':+'data'}
headers+=+{'content-type':+'application/json'}

response+=+requests.post(url,+data=json.dumps(payload),+headers=headers)|code-block|syntax|javascript|405631|entityMap|0|LINK|mutability|MUTABLE|url^0|C|8|0|0|22|0|0|0^^$0|@$1|2|3|4|5|6|7|T|8|@$9|U|A|V|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|W|8|@]|D|@$9|X|A|Y|1|Z]]|E|$]]|$1|H|3|I|5|J|7|10|8|@]|D|@]|E|$K|L]]|$1|M|3|-4|5|6|7|11|8|@]|D|@]|E|$]]]|N|$O|$5|P|Q|R|E|$S|G]]]]

I recommend using the incredible <code>requests</code> module.

<a href="http://docs.python-requests.org/en/v0.10.7/user/quickstart/#custom-headers" rel="noreferrer">http://docs.python-requests.org/en/v0.10.7/user/quickstart/#custom-headers</a>

<pre><code>url = 'https://api.github.com/some/endpoint'
payload = {'some': 'data'}
headers = {'content-type': 'application/json'}

response = requests.post(url, data=json.dumps(payload), headers=headers)
</code></pre>

blocks|key|621360|text|你必须添加标题，否则你会得到http+400错误。该代码在python2.6、centos5.4上运行良好|type|unstyled|depth|inlineStyleRanges|entityRanges|data|621361|代码：|621362|++++import+urllib2,json

++++url+=+'http://www.google.com/someservice'
++++postdata+=+{'key':'value'}

++++req+=+urllib2.Request(url)
++++req.add_header('Content-Type','application/json')
++++data+=+json.dumps(postdata)

++++response+=+urllib2.urlopen(req,data)|code-block|syntax|javascript|621363|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

You have to add header,or you will get http 400 error.
The code works well on python2.6,centos5.4

code:

<pre><code> import urllib2,json

 url = 'http://www.google.com/someservice'
 postdata = {'key':'value'}

 req = urllib2.Request(url)
 req.add_header('Content-Type','application/json')
 data = json.dumps(postdata)

 response = urllib2.urlopen(req,data)
</code></pre>

blocks|key|405752|text|对于python+3.4.2，我发现以下内容将会起作用：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|405753|import+urllib.request
import+json

body+=+{'ids':+[12,+14,+50]}
myurl+=+"http://www.testmycode.com"

req+=+urllib.request.Request(myurl)
req.add_header('Content-Type',+'application/json;+charset=utf-8')
jsondata+=+json.dumps(body)
jsondataasbytes+=+jsondata.encode('utf-8')+++#+needs+to+be+bytes
req.add_header('Content-Length',+len(jsondataasbytes))
response+=+urllib.request.urlopen(req,+jsondataasbytes)|code-block|syntax|javascript|405754|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|$]]

for python 3.4.2 I found the following will work:
<pre><code>import urllib.request
import json

body = {'ids': [12, 14, 50]}
myurl = &quot;http://www.testmycode.com&quot;

req = urllib.request.Request(myurl)
req.add_header('Content-Type', 'application/json; charset=utf-8')
jsondata = json.dumps(body)
jsondataasbytes = jsondata.encode('utf-8') # needs to be bytes
req.add_header('Content-Length', len(jsondataasbytes))
response = urllib.request.urlopen(req, jsondataasbytes)
</code></pre>

blocks|key|621418|text|这对于Python+3.5非常有效，如果URL包含查询字符串/参数值，|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|621419|请求URL+=+https://bah2.com/ws/rest/v1/concept/|621420|参数值=+21f6bb43-98a1-419d-8f0c-8133669e40ca|621421|import+requests

url+=+'https://bahbah2.com/ws/rest/v1/concept/21f6bb43-98a1-419d-8f0c-8133669e40ca'
data+=+{"name":+"Value"}
r+=+requests.post(url,+auth=('username',+'password'),+json=data)
print(r.status_code)|code-block|syntax|javascript|621422|entityMap|0|LINK|mutability|MUTABLE|url|https://bah2.com/ws/rest/v1/concept/^0|3|A|0|8|10|0|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@$9|X|A|Y|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|Z|8|@]|D|@$9|10|A|11|1|12]]|E|$]]|$1|H|3|I|5|6|7|13|8|@]|D|@]|E|$]]|$1|J|3|K|5|L|7|14|8|@]|D|@]|E|$M|N]]|$1|O|3|-4|5|6|7|15|8|@]|D|@]|E|$]]]|P|$Q|$5|R|S|T|E|$U|V]]]]

This works perfect for <code>Python 3.5</code>, if the URL contains Query String / Parameter value,
Request URL = <a href="https://bah2.com/ws/rest/v1/concept/" rel="nofollow noreferrer">https://bah2.com/ws/rest/v1/concept/</a> 
Parameter value = 21f6bb43-98a1-419d-8f0c-8133669e40ca
<pre><code>import requests

url = 'https://bahbah2.com/ws/rest/v1/concept/21f6bb43-98a1-419d-8f0c-8133669e40ca'
data = {&quot;name&quot;: &quot;Value&quot;}
r = requests.post(url, auth=('username', 'password'), json=data)
print(r.status_code)
</code></pre>

blocks|key|621462|text|下面是一个如何使用Python标准库中urllib.request对象的示例。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|621463|import+urllib.request
import+json
from+pprint+import+pprint

url+=+"https://app.close.com/hackwithus/3d63efa04a08a9e0/"

values+=+{
++++"first_name":+"Vlad",
++++"last_name":+"Bezden",
++++"urls":+[
++++++++"https://twitter.com/VladBezden",
++++++++"https://github.com/vlad-bezden",
++++],
}


headers+=+{
++++"Content-Type":+"application/json",
++++"Accept":+"application/json",
}

data+=+json.dumps(values).encode("utf-8")
pprint(data)

try:
++++req+=+urllib.request.Request(url,+data,+headers)
++++with+urllib.request.urlopen(req)+as+f:
++++++++res+=+f.read()
++++pprint(res.decode())
except+Exception+as+e:
++++pprint(e)|code-block|syntax|javascript|621464|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|$]]

Here is an example of how to use urllib.request object from Python standard library.

<pre><code>import urllib.request
import json
from pprint import pprint

url = "https://app.close.com/hackwithus/3d63efa04a08a9e0/"

values = {
 "first_name": "Vlad",
 "last_name": "Bezden",
 "urls": [
 "https://twitter.com/VladBezden",
 "https://github.com/vlad-bezden",
 ],
}


headers = {
 "Content-Type": "application/json",
 "Accept": "application/json",
}

data = json.dumps(values).encode("utf-8")
pprint(data)

try:
 req = urllib.request.Request(url, data, headers)
 with urllib.request.urlopen(req) as f:
 res = f.read()
 pprint(res.decode())
except Exception as e:
 pprint(e)
</code></pre>

blocks|key|405882|text|在lastest+requests包中，您可以使用requests.post()方法中的json参数发送json+dict，header中的Content-Type将被设置为application/json。不需要显式指定header。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|405883|import+requests

payload+=+{'key':+'value'}
requests.post(url,+json=payload)|code-block|syntax|javascript|405884|entityMap|0|LINK|mutability|MUTABLE|url|https://2.python-requests.org/en/master/api/#requests.post^0|P|F|18|4|1Y|C|2F|G|P|F|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]|$9|V|A|W|B|C]|$9|X|A|Y|B|C]|$9|Z|A|10|B|C]]|D|@$9|11|A|12|1|13]]|E|$]]|$1|F|3|G|5|H|7|14|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|15|8|@]|D|@]|E|$]]]|L|$M|$5|N|O|P|E|$Q|R]]]]

In the lastest requests package, you can use <code>json</code> parameter in <a href="https://2.python-requests.org/en/master/api/#requests.post" rel="nofollow noreferrer"><code>requests.post()</code></a> method to send a json dict, and the <code>Content-Type</code> in header will be set to <code>application/json</code>. There is no need to specify header explicitly.
<pre class="lang-py prettyprint-override"><code>import requests

payload = {'key': 'value'}
requests.post(url, json=payload)
</code></pre>

blocks|key|621536|text|这个apis对我来说工作得很好|type|unstyled|depth|inlineStyleRanges|entityRanges|data|621537|import+requests

data={'Id':id+,'name':+name}
r+=+requests.post(+url+=+'https://apiurllink',+data+=+data)|code-block|syntax|javascript|621538|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|$]]

This one works fine for me with apis

<pre><code>import requests

data={'Id':id ,'name': name}
r = requests.post( url = 'https://apiurllink', data = data)
</code></pre>

blocks|key|405970|text|在这里的许多答案中使用的Requests包很好，但不是必需的。您可以使用Python+3标准库在一个步骤中简洁地执行JSON数据的POST：|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|405971|import+json
from+urllib+import+request

request.urlopen(request.Request(
++++'https://example.com/url',
++++headers={'Content-Type':+'application/json'},
++++data=json.dumps({
++++++++'pi':+3.14159
++++}).encode()
))|code-block|syntax|javascript|405972|如果您需要读取结果，您可以从返回的类似文件的对象中进行.read()，并使用json.loads()来解码JSON响应。|style|CODE|405973|entityMap|0|LINK|mutability|MUTABLE|url|https://requests.readthedocs.io/^0|C|8|0|0|0|R|7|12|C|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@$A|V|B|W|1|X]]|C|$]]|$1|D|3|E|5|F|7|Y|8|@]|9|@]|C|$G|H]]|$1|I|3|J|5|6|7|Z|8|@$A|10|B|11|K|L]|$A|12|B|13|K|L]]|9|@]|C|$]]|$1|M|3|-4|5|6|7|14|8|@]|9|@]|C|$]]]|N|$O|$5|P|Q|R|C|$S|T]]]]

The <a href="https://requests.readthedocs.io" rel="nofollow noreferrer">Requests</a> package used in many answers here is great but not necessary. You can perform a POST of JSON data succinctly with the Python 3 standard library in one step:
<pre class="lang-py prettyprint-override"><code>import json
from urllib import request

request.urlopen(request.Request(
 'https://example.com/url',
 headers={'Content-Type': 'application/json'},
 data=json.dumps({
 'pi': 3.14159
 }).encode()
))
</code></pre>
If you need to read the result, you can <code>.read()</code> from the returned file-like object and use <code>json.loads()</code> to decode a JSON response.

<pre><code>data = {
 'ids': [12, 3, 4, 5, 6 , ...]
 }
 urllib2.urlopen("http://abc.com/api/posts/create",urllib.urlencode(data))
</code></pre>

I want to send a POST request, but one of the fields should be a list of numbers. How can I do that ? (JSON?)

How do I send a POST request as a JSON?

Python

JSON

data = {        'ids': [12, 3, 4, 5, 6 , ...]    }    urllib2.urlopen("http://abc.com/api/posts/create",urllib.urlencode(data))我想发送一个POST请求，但是其中一个字段应该是一个数字列表。我该...

问如何将POST请求作为JSON发送？
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