blocks|key|338916|text|最近几年开发了一个名为VCR.py的录像机Python端口。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|338917|如果你已经知道如何使用VCR并且对它很熟悉，你也可以考虑运行一个本地的ruby代理服务器(使用类似rack的东西)，并将VCR加载到其中。然后，您可以在任何language...just中测试代码，确保通过本地服务器代理这些HTTP请求。这是VCR's+rack+middleware的主要用途之一。我以前用它测试过非ruby代码，它工作得很好。|338918|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/kevin1024/vcrpy|1|https://www.relishapp.com/myronmarston/vcr/v/2-2-0/docs/middleware/rack^0|B|6|0|0|3D|L|1|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@$A|Q|B|R|1|S]]|C|$]]|$1|D|3|E|5|6|7|T|8|@]|9|@$A|U|B|V|1|W]]|C|$]]|$1|F|3|-4|5|6|7|X|8|@]|9|@]|C|$]]]|G|$H|$5|I|J|K|C|$L|M]]|N|$5|I|J|K|C|$L|O]]]]

There is a Python port of VCR called <a href="https://github.com/kevin1024/vcrpy" rel="nofollow noreferrer">VCR.py</a> developed in the last years.

If you already know how to use VCR and are comfortable with it, you might also consider running a local ruby proxy server (using something like rack) with VCR loaded into it. Then you can test code in any language...just make sure the HTTP requests are being proxied through your local server. This is one of the main uses of <a href="https://www.relishapp.com/myronmarston/vcr/v/2-2-0/docs/middleware/rack" rel="nofollow noreferrer">VCR's rack middleware</a>. I've used this to test non-ruby code before and it worked great.

blocks|key|338960|text|还有一个python的betamax，我会全心全意地推荐它。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|338961|entityMap|0|LINK|mutability|MUTABLE|url|http://betamax.readthedocs.io/en/latest/^0|B|7|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

There is also a <a href="http://betamax.readthedocs.io/en/latest/" rel="nofollow">betamax</a> for python that I would wholeheartedly recommend.

blocks|key|555036|text|在其他答案中都提出了betamax和VCR.py。我想指出一个差异，它可能决定您可以使用哪一个。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|555037|Betamax期望您在设置测试时传递一个预先创建的requests.Session对象。这意味着会话对象必须来自测试内部，而不是在测试代码中。从文档中：|555038|with+Betamax(self.session)+as+vcr:
++++vcr.use_cassette('user')
++++resp+=+self.session.get('https://api.github.com/user',
++++++++++++++++++++++++++++auth=('user',+'pass'))
++++assert+resp.json()['login']+is+not+None|code-block|syntax|javascript|555039|在我的例子中，会话对象是在我需要测试的代码中创建的。在这种情况下，betamax就不成问题了。|555040|另一方面，VCR.py在较低的级别上修补了Python栈，因此它可以完美地工作：|555041|import+requests
import+vcr

def+my_func():
++++session+=+requests.Session()
++++response+=+session.get('https://stackoverflow.com/')
++++print(response.text[:200])

def+test_my_func():
++++with+vcr.use_cassette('/tmp/cassette.yaml'):
++++++++my_func()|555042|entityMap|0|LINK|mutability|MUTABLE|url|http://betamax.readthedocs.io/en/latest/|1|https://github.com/kevin1024/vcrpy|2|http://docs.python-requests.org/en/master/user/advanced/#session-objects^0|A|7|0|I|6|1|0|P|G|2|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|12|8|@]|9|@$A|13|B|14|1|15]|$A|16|B|17|1|18]]|C|$]]|$1|D|3|E|5|6|7|19|8|@]|9|@$A|1A|B|1B|1|1C]]|C|$]]|$1|F|3|G|5|H|7|1D|8|@]|9|@]|C|$I|J]]|$1|K|3|L|5|6|7|1E|8|@]|9|@]|C|$]]|$1|M|3|N|5|6|7|1F|8|@]|9|@]|C|$]]|$1|O|3|P|5|H|7|1G|8|@]|9|@]|C|$I|J]]|$1|Q|3|-4|5|6|7|1H|8|@]|9|@]|C|$]]]|R|$S|$5|T|U|V|C|$W|X]]|Y|$5|T|U|V|C|$W|Z]]|10|$5|T|U|V|C|$W|11]]]]

Both <a href="http://betamax.readthedocs.io/en/latest/" rel="nofollow noreferrer">betamax</a> and <a href="https://github.com/kevin1024/vcrpy" rel="nofollow noreferrer">VCR.py</a> have been suggested in other answers. I wanted to point out one difference which might dictate which one you are able to use.

Betamax expects you to pass a pre-created <a href="http://docs.python-requests.org/en/master/user/advanced/#session-objects" rel="nofollow noreferrer">requests.Session</a> object when setting it up for the test. This means that the session object must originate from inside the test, and not in the code under test. From the documentation:

<pre><code>with Betamax(self.session) as vcr:
 vcr.use_cassette('user')
 resp = self.session.get('https://api.github.com/user',
 auth=('user', 'pass'))
 assert resp.json()['login'] is not None
</code></pre>

In my case, the session object is created inside the code I need to test. In this case betamax was thus out of question.

VCR.py on the other hand patches Python's HTTP stack at a lower level, so this works perfectly:

<pre><code>import requests
import vcr

def my_func():
 session = requests.Session()
 response = session.get('https://stackoverflow.com/')
 print(response.text[:200])

def test_my_func():
 with vcr.use_cassette('/tmp/cassette.yaml'):
 my_func()
</code></pre>

I'd like to use the awesome "record/playback" mechanism of <a href="https://github.com/myronmarston/vcr">Ruby's VCR library</a> or <a href="http://freeside.co/betamax/">Betamax for the JVM</a>. Is there a Python library that works the same way? If not, how do you test your REST client calls without worrying about the test being slow and flaky?

Is there a python alternative to Ruby's VCR library?

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我想使用或的强大的“录制/回放”机制。有没有这样工作的Python库呢？如果没有，你如何测试你的REST客户端调用而不担心测试缓慢和不稳定？

问有没有可以替代Ruby的VCR库的python？
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