blocks|key|5040568|text|问题是，使用use_reloader=True时，werkzeug应用程序是在主应用程序的单独(子)线程中启动的，而PyCharm无法正确处理断点，因为断点在线程启动时会丢失。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|5040569|你可以试着关注这个帖子：http://forum.jetbrains.com/thread/PyCharm-776，但它看起来在这方面没有太多的进展。|5040570|我建议使用Python式的东西，比如pdb，例如：|5040571|@app.route('/<string:page>')
def+main(page):
+++import+pdb;+pdb.set_trace()++#+This+line+actually+stops+application+execution
++++++++++++++++++++++++++++++++#+and+starts+Python+debug+shell+in+the+console
++++++++++++++++++++++++++++++++#+where+you+can+examine+current+scope+and+continue
++++++++++++++++++++++++++++++++#+normal+code+execution+at+any+time.
++++++++++++++++++++++++++++++++#+You+can+inject+*any*+code+here.
++++++++++++++++++++++++++++++++#+For+example,+if+you+type+`print+page`+during+pause,
++++++++++++++++++++++++++++++++#+it+will+output+content+of+"page"+variable.
+++return+render_template('index.html')|code-block|syntax|javascript|5040572|entityMap|0|LINK|mutability|MUTABLE|url|http://forum.jetbrains.com/thread/PyCharm-776^0|6|H|0|C|19|0|0|I|3|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|@$9|14|A|15|B|C]]|D|@]|E|$]]|$1|J|3|K|5|L|7|16|8|@]|D|@]|E|$M|N]]|$1|O|3|-4|5|6|7|17|8|@]|D|@]|E|$]]]|P|$Q|$5|R|S|T|E|$U|V]]]]

The problem is because with <code>use_reloader=True</code> the werkzeug application is started in a seperate (child) thread of main application and PyCharm fails to correctly handle breakpoints because they are lost when the thread starts.

You can try to follow this thread: <a href="http://forum.jetbrains.com/thread/PyCharm-776" rel="nofollow">http://forum.jetbrains.com/thread/PyCharm-776</a> but it seams there was not too much progress on that.

I'd suggest using something Python-ish like <code>pdb</code>, i.e.:

<pre><code>@app.route('/&lt;string:page&gt;')
def main(page):
 import pdb; pdb.set_trace() # This line actually stops application execution
 # and starts Python debug shell in the console
 # where you can examine current scope and continue
 # normal code execution at any time.
 # You can inject *any* code here.
 # For example, if you type `print page` during pause,
 # it will output content of "page" variable.
 return render_template('index.html')
</code></pre>

blocks|key|5040673|text|我将从简短的答案开始:不，您想要的东西不能在任何4.0.1之前的PyCharm版本中完成。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5040674|问题是，当您使用重载程序时，Flask应用程序在子进程中运行，因此PyCharm调试器附加到主进程，无法控制该子进程。|5040675|在我看来，解决这个问题的最好方法是让Jetbrains在他们的IDE中构建一个“更改时重启”功能。然后你根本不需要使用Werkzeug的重载器，你可以直接从PyCharm获得相同的功能。|5040676|在Jetbrains决定实现它之前，我可以分享我的解决方法，这并不是很糟糕。|5040677|5040678|在“编辑配置”中，将你要使用的配置设置为“仅单实例”(对话框右上角的复选框)|unordered-list-item|5040679|确保该配置是活动的。|5040680|将你的Flask应用程序配置为不使用Werkzeug+reloader。|5040681|按Ctrl-D开始调试(在Mac上，其他人可能有不同的shortcut)|5040682|Breakpoints应该可以正常工作，因为重新加载程序未处于活动状态。|5040683|5040684|可以根据需要更改代码。|5040685|当您准备好重新启动时，请再次按Ctrl-D。)第一次执行此操作时，您将得到确认提示，类似于“停止并重新启动？”。说“是”，然后勾选“不再显示”checkbox.|5040686|Now你可以在需要的时候按Ctrl-D快速重启调试器。|5040687|5040688|我承认它并不完美，但一旦Ctrl-D进入你的肌肉记忆中，你甚至不会去想它。|5040689|祝好运!|5040690|entityMap^0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|17|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|18|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|19|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|1A|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|1B|8|@]|9|@]|A|$]]|$1|I|3|J|5|K|7|1C|8|@]|9|@]|A|$]]|$1|L|3|M|5|K|7|1D|8|@]|9|@]|A|$]]|$1|N|3|O|5|K|7|1E|8|@]|9|@]|A|$]]|$1|P|3|Q|5|K|7|1F|8|@]|9|@]|A|$]]|$1|R|3|S|5|K|7|1G|8|@]|9|@]|A|$]]|$1|T|3|-4|5|K|7|1H|8|@]|9|@]|A|$]]|$1|U|3|V|5|6|7|1I|8|@]|9|@]|A|$]]|$1|W|3|X|5|K|7|1J|8|@]|9|@]|A|$]]|$1|Y|3|Z|5|K|7|1K|8|@]|9|@]|A|$]]|$1|10|3|-4|5|6|7|1L|8|@]|9|@]|A|$]]|$1|11|3|12|5|6|7|1M|8|@]|9|@]|A|$]]|$1|13|3|14|5|6|7|1N|8|@]|9|@]|A|$]]|$1|15|3|-4|5|6|7|1O|8|@]|9|@]|A|$]]]|16|$]]

I'm going to start with the short answer: No, what you want cannot be done with any releases of PyCharm up to 4.0.1.

The problem is that when you use the reloader the Flask application runs in a child process, so the PyCharm debugger is attached to the master process and has no control over the child.

The best way to solve this problem, in my opinion, is to ask Jetbrains to build a "restart on change" feature in their IDE. Then you don't need to use Werkzeug's reloader at all and you get the same functionality direct from PyCharm.

Until Jetbrains decides to implement this, I can share my workaround, which is not terribly bad.

<ul>
<li>In the "Edit Configurations", set the configuration you are going to use to "Single Instance only" (check box in the top right of the dialog box)</li>
<li>Make sure the configuration is the active one.</li>
<li>Configure your Flask app to not use the Werkzeug reloader. </li>
<li>Press Ctrl-D to start debugging (on Mac, others may have a different shortcut)</li>
<li>Breakpoints should work just fine because the reloader isn't active.</li>
<li>Make any code changes you need.</li>
<li>When you are ready to restart, hit Ctrl-D again. The first time you do it you will get a confirmation prompt, something like "stop and restart?". Say yes, and check the "do not show again" checkbox.</li>
<li>Now you can hit Ctrl-D to quickly restart the debugger whenever you need to.</li>
</ul>

I agree it is not perfect, but once the Ctrl-D gets into your muscle memory you will not even think about it.

Good luck!

blocks|key|5040700|text|从pycharm+2017开始使用python+2.7+(在我的例子中使用了虚拟环境，但我想不是必须的)，我这样做：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5040701|5040702|run...|unordered-list-item|5040703|leave脚本和脚本参数空白|5040704|我放入解释器选项：-m+flask运行|5040705|设置环境变量FLASK_APP|5040706|然后运行连接到本地进程，最后选择运行进程|5040707|5040708|我的用例是从postman连接到flask+rest服务端点，并在断点处中断|5040709|entityMap^0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|T|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|U|8|@]|9|@]|A|$]]|$1|F|3|G|5|E|7|V|8|@]|9|@]|A|$]]|$1|H|3|I|5|E|7|W|8|@]|9|@]|A|$]]|$1|J|3|K|5|E|7|X|8|@]|9|@]|A|$]]|$1|L|3|M|5|E|7|Y|8|@]|9|@]|A|$]]|$1|N|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]|$1|O|3|P|5|6|7|10|8|@]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|11|8|@]|9|@]|A|$]]]|R|$]]

<h1>from pycharm 2017 using python 2.7 (in my case with virtual env, but I suppose not necessary) I do:</h1>

<ul>
<li>run...</li>
<li>leave scripts and scripts parameters blank</li>
<li>I put in interpreter options: -m flask run</li>
<li>set the env variables FLASK_APP</li>
<li>than run attach to local process, and finally choose the running process</li>
</ul>

my use case is to connect from postman to flask rest services endpoints and interrupt on my breakpoints

blocks|key|2926502|text|我发现在PyCharm+2018.1.2中，在run+configuration中有FLASK_DEBUG复选框：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2926503|📷|atomic|offset|length|2926504|​|2926505|在进行了一些更改之后，保存文件会触发重新加载操作。|2926506|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/9cca8cd2c9219998d25462e61db1377a.png|imageAlt^0|0|0|1|0|0|0|0^^$0|@$1|2|3|4|5|6|7|T|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|U|8|@]|9|@$E|V|F|W|1|X]]|A|$]]|$1|G|3|H|5|6|7|Y|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|Z|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|10|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|R|S|-4]]]]

I found that in PyCharm 2018.1.2 there is FLASK_DEBUG checbox in run configuration:<a href="https://i.stack.imgur.com/b1IsQ.png" rel="noreferrer"><img src="https://i.stack.imgur.com/b1IsQ.png" alt="enter image description here"></a>

With this after making some changes, saving file triggers reload action.

blocks|key|2079691|text|尝试在“编辑配置”中配置此python运行配置。之后，在调试模式下运行。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2079692|​|2079693|📷|atomic|offset|length|2079694|2079695|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/d7a1ea73e065451749eaef394565d00c.png|imageAlt^0|0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|T|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@$G|V|H|W|1|X]]|A|$]]|$1|I|3|C|5|6|7|Y|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|K|$L|$5|M|N|O|A|$P|Q|R|-4]]]]

Try configuring this python running configuration in "Edit Configurations". After that, run in debug mode.

<a href="https://i.stack.imgur.com/HoiQz.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/HoiQz.png" alt="Example"></a>

blocks|key|5040817|text|在我的设置中，我通过运行一个设置了一些配置并调用app.run()的main.py文件来调试flask应用程序。我的python解释器设置在Docker容器中。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|5040818|我的问题是我需要检查Run+with+Python+console。|5040819|​|5040820|📷|atomic|5040821|5040822|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/c4c35f0cf463e83ce97a83963053dc28.png|imageAlt^0|O|9|Y|7|0|A|N|0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@$9|X|A|Y|B|C]|$9|Z|A|10|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|11|8|@$9|12|A|13|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|14|8|@]|D|@]|E|$]]|$1|J|3|K|5|L|7|15|8|@]|D|@$9|16|A|17|1|18]]|E|$]]|$1|M|3|I|5|6|7|19|8|@]|D|@]|E|$]]|$1|N|3|-4|5|6|7|1A|8|@]|D|@]|E|$]]]|O|$P|$5|Q|R|S|E|$T|U|V|-4]]]]

In my setup, I'm debugging the flask app by running a <code>main.py</code> file which sets some configuration and calls <code>app.run()</code>. My python interpreter is set up in a Docker container.

My issue was that I needed to check <code>Run with Python console</code>.

<a href="https://i.stack.imgur.com/Ql6aT.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Ql6aT.png" alt=""></a>

blocks|key|171478|text|您需要解锁控制台。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|171479|171480|在调试模式下启动应用程序|ordered-list-item|171481|171482|​|171483|📷|atomic|offset|length|171484|171485|然后你做了一些导致错误的事情，在flask中错误消息的末尾是|171486|171487|171488|171489|在此处，您可以在控制台的start+中输入密码烧瓶打印|171490|171491|171492|171493|copy将此PIN码粘贴到控制台中，然后单击confirm+PIN码|171494|现在断点将工作|171495|171496|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/2c8d00962d255c9ba86179d3a42ec033.png|imageAlt|1|https://ask.qcloudimg.com/http-save/yehe-900000/bac1e15cddcc890a5faca5864416ecfe.png|2|https://ask.qcloudimg.com/http-save/yehe-900000/80a3f9f5040a2c3323a5464f59ce8464.png^0|0|0|0|0|0|0|1|0|0|0|0|0|0|1|1|0|0|0|0|1|2|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|1G|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|1H|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|1I|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|1J|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|1K|8|@]|9|@]|A|$]]|$1|I|3|J|5|K|7|1L|8|@]|9|@$L|1M|M|1N|1|1O]]|A|$]]|$1|N|3|H|5|6|7|1P|8|@]|9|@]|A|$]]|$1|O|3|P|5|6|7|1Q|8|@]|9|@]|A|$]]|$1|Q|3|H|5|6|7|1R|8|@]|9|@]|A|$]]|$1|R|3|J|5|K|7|1S|8|@]|9|@$L|1T|M|1U|1|1V]]|A|$]]|$1|S|3|H|5|6|7|1W|8|@]|9|@]|A|$]]|$1|T|3|U|5|6|7|1X|8|@]|9|@]|A|$]]|$1|V|3|J|5|K|7|1Y|8|@]|9|@$L|1Z|M|20|1|21]]|A|$]]|$1|W|3|H|5|6|7|22|8|@]|9|@]|A|$]]|$1|X|3|-4|5|6|7|23|8|@]|9|@]|A|$]]|$1|Y|3|Z|5|E|7|24|8|@]|9|@]|A|$]]|$1|10|3|11|5|E|7|25|8|@]|9|@]|A|$]]|$1|12|3|-4|5|6|7|26|8|@]|9|@]|A|$]]|$1|13|3|-4|5|6|7|27|8|@]|9|@]|A|$]]]|14|$15|$5|16|17|18|A|$19|1A|1B|-4]]|1C|$5|16|17|18|A|$19|1D|1B|-4]]|1E|$5|16|17|18|A|$19|1F|1B|-4]]]]

You need to unlock the console.
<ol>
<li>you start the app in debug mode</li>
</ol>
<a href="https://i.stack.imgur.com/R3t2R.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/R3t2R.png" alt="enter image description here" /></a>
<ol start="2">
<li>then you make something that causes an error.</li>
<li>at the end of the error message from flask is this</li>
</ol>
<a href="https://i.stack.imgur.com/i1noN.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/i1noN.png" alt="enter image description here" /></a>
<ol start="4">
<li>Here you enter the PIN flask prints in the console at the start
<a href="https://i.stack.imgur.com/Ki6yK.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Ki6yK.png" alt="enter image description here" /></a></li>
<li>copy paste this pin into the console and click confirm PIN</li>
<li>now the breakpoints will work</li>
</ol>

I'm using Pycharm 4, with flask 0.10.1, python 3.4

It seems that when running a flask application from inside pycharm, if I run it with:

<pre><code>app.run(debug=True)
</code></pre>

My breakpoints are ignored. After some googling, I've found that in order to make PyCharm stop on breakpoints, I should run flask with:

<pre><code>app.run(debug=True, use_reloader=False)
</code></pre>

Now PyCharm correctly stops on breakpoints, but I miss the autoreloading feature.

Is there any way to make both work together?

Using python 2.7 both things work

I reported this to PyCharm: <a href="https://youtrack.jetbrains.com/issue/PY-13976" rel="noreferrer">https://youtrack.jetbrains.com/issue/PY-13976</a>

pycharm and flask autoreload and breakpoints not working

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我使用Pycharm 4，flask为0.10.1，python为3.4当我从pycharm内部运行一个flask应用程序时，如果我用：app.run(debug=True)我的断点被忽略了。在谷歌搜索之后，我发现为了让PyCharm在断点处停止，我应该用以下命令运行flask：app.run(debug=True, ...

问pycharm和flask自动重新加载和断点不工作
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