blocks|key|1449873|text|我在Pycharm+IDE中找到了一种使用2到3工具将文件从v2转换为v3的方法。|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|1449874|我在windows环境中应用了pycharmcomunityVersionv2016.2.3。|1449875|单击状态栏中的终端，您在项目根目录下的shell命令中。|unordered-list-item|1449876|键入命令(以转换myfile.py)：|1449877|2to3+myfile.py+-w|code-block|syntax|javascript|1449878|该工具修改文件的代码，您的IDE将随更改而反映。|1449879|若要修改文件夹中的所有文件，请键入命令|1449880|2to3+.+-w|1449881|实际写入更改的选项-w。要了解更多细节，请写：|CODE|1449882|2to3+-h|1449883|entityMap^0|2|7|0|0|7|2|0|0|0|0|0|0|9|2|0|0^^$0|@$1|2|3|4|5|6|7|14|8|@$9|15|A|16|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|17|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|18|8|@$9|19|A|1A|B|C]]|D|@]|E|$]]|$1|K|3|L|5|J|7|1B|8|@]|D|@]|E|$]]|$1|M|3|N|5|O|7|1C|8|@]|D|@]|E|$P|Q]]|$1|R|3|S|5|6|7|1D|8|@]|D|@]|E|$]]|$1|T|3|U|5|6|7|1E|8|@]|D|@]|E|$]]|$1|V|3|W|5|O|7|1F|8|@]|D|@]|E|$P|Q]]|$1|X|3|Y|5|6|7|1G|8|@$9|1H|A|1I|B|Z]]|D|@]|E|$]]|$1|10|3|11|5|O|7|1J|8|@]|D|@]|E|$P|Q]]|$1|12|3|-4|5|6|7|1K|8|@]|D|@]|E|$]]]|13|$]]

I found a way in Pycharm IDE to convert file from v2 to v3 using 2to3 tool.

I applied in pycharm comunity edition v 2016.2.3 in windows environment.

<ul>
<li>click terminal in status bar
Now, you are in shell command, in the root of your project.</li>
<li>type the command (to convert myfile.py):</li>
</ul>

<pre><code>2to3 myfile.py -w
</code></pre>

The tool modifies the code of the file, and your IDE is reflected with the changes.

To modify all your files in the folder, type the command

<pre><code>2to3 . -w
</code></pre>

The option <code>-w</code> to actually write the changes. 
For more details write: 

<pre><code>2to3 -h
</code></pre>

blocks|key|2202176|text|转到命令行中存在python2script.py的文件夹，|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2202177|然后执行以下命令：|2202178|python+C:/python/Tools/scripts/2to3.py+-w+python2script.py|code-block|syntax|javascript|2202179|您可以看到您的python2scipt.py被更新了。|2202180|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|O|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Goto the folder where your python2script.py is existing in command line,

then execute the command:

<pre><code>python C:/python/Tools/scripts/2to3.py -w python2script.py
</code></pre>

you can see that your python2scipt.py is updated.

blocks|key|1129590|text|为了将python脚本从version-2转换为version-3，只需使用2到3实用程序即可。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1129591|在linux终端上-|1129592|$+2to3+my_file.py++++++++++++++#+shows+output+only+on+terminal|code-block|syntax|javascript|1129593|或|1129594|$+2to3+-w+my_file.py+++++++++++#+overwrites+the+file+with+python-3+code|1129595|其中my_file.py是要转换的文件。|1129596|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|R|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|T|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|U|8|@]|9|@]|A|$G|H]]|$1|M|3|N|5|6|7|V|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

In order to convert your python script from version-2 to version-3, you can simply use 2to3 utility.

On linux terminal - 

<pre><code>$ 2to3 my_file.py # shows output only on terminal
</code></pre>

or

<pre><code>$ 2to3 -w my_file.py # overwrites the file with python-3 code
</code></pre>

where my_file.py is the file which you want to convert.

blocks|key|1129627|text|将python+2.X.X转换为python+3.X.X的两种方法|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1129628|使用网络应用程序|ordered-list-item|1129629|我开发了一个web应用程序，将python+2.x.x代码转换为python+3.x.x。这是自动Python+2到3转换器。|offset|length|1129630|注意:这个web应用程序是免费的，并且使用这个2to3+python库。|style|CODE|1129631|使用2到3库的，+读取|BOLD|1129632|安装2to3库|1129633|pip+install+2to3+|code-block|syntax|javascript|1129634|转换myfile.py|1129635|2to3+myfile.py+|1129636|这建议创建一个包含Python+3代码的新文件。|1129637|如果要覆盖myfile.py，请使用-w参数，如2至3+myfile.py+-w。阅读文档以获得更多的参数。|1129638|entityMap|0|LINK|mutability|MUTABLE|url|https://360techexplorer.com/tools/python-2-to-3-converter/^0|0|0|1B|F|0|0|N|4|0|7|1|9|2|0|0|7|0|0|0|B|0|0|0|O|0|0|1I|0^^$0|@$1|2|3|4|5|6|7|1C|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|1D|8|@]|9|@]|A|$]]|$1|E|3|F|5|6|7|1E|8|@]|9|@$G|1F|H|1G|1|1H]]|A|$]]|$1|I|3|J|5|6|7|1I|8|@$G|1J|H|1K|K|L]]|9|@]|A|$]]|$1|M|3|N|5|D|7|1L|8|@$G|1M|H|1N|K|O]|$G|1O|H|1P|K|O]]|9|@]|A|$]]|$1|P|3|Q|5|6|7|1Q|8|@$G|1R|H|1S|K|O]]|9|@]|A|$]]|$1|R|3|S|5|T|7|1T|8|@]|9|@]|A|$U|V]]|$1|W|3|X|5|6|7|1U|8|@$G|1V|H|1W|K|O]]|9|@]|A|$]]|$1|Y|3|Z|5|T|7|1X|8|@]|9|@]|A|$U|V]]|$1|10|3|11|5|6|7|1Y|8|@$G|1Z|H|20|K|O]]|9|@]|A|$]]|$1|12|3|13|5|6|7|21|8|@$G|22|H|23|K|O]]|9|@]|A|$]]|$1|14|3|-4|5|6|7|24|8|@]|9|@]|A|$]]]|15|$16|$5|17|18|19|A|$1A|1B]]]]

Two methods to convert python 2.X.X to python 3.X.X
<ol>
<li>Using Web-application</li>
</ol>
I develop a web application to convert python 2.x.x code to python 3.x.x.
Here is the <a href="https://360techexplorer.com/tools/python-2-to-3-converter/" rel="nofollow noreferrer">Automatic Python 2 to 3 converter</a>.
Note: This web app is FREE and using this <code>2to3</code> python library.
<hr />
<ol start="2">
<li>Using 2to3 library, Read the <a href="https://docs.python.org/3/library/2to3.html" rel="nofollow noreferrer">doc here</a>.</li>
</ol>
Install 2to3 library
<pre><code>pip install 2to3 
</code></pre>
Convert myfile.py
<pre><code>2to3 myfile.py 
</code></pre>
This commends create a new file that contains your Python 3 code.
If you want to overwrite the myfile.py use -w argument like 2to3 myfile.py -w. Read the docs for more arguments.

blocks|key|2202095|text|Python中包含了一个脚本，通常在[Python+Root]/Tools/Scripts/2to3.py。您可以在python文件(或python文件目录)上运行该脚本，它将处理大量转换，至少对于标准库中的更改是这样的。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2202096|如果您的项目使用其他第三方库，它会变得更复杂一些。对于那些在2到3转换过程中更改的api，2to3.py脚本可能不知道这些api的变化。您最好的选择是运行转换脚本，然后手动进行所需的任何其他更改。|2202097|entityMap|0|LINK|mutability|MUTABLE|url|https://docs.python.org/2/library/2to3.html^0|I|Z|C|2|0|0|19|7|0^^$0|@$1|2|3|4|5|6|7|P|8|@$9|Q|A|R|B|C]]|D|@$9|S|A|T|1|U]]|E|$]]|$1|F|3|G|5|6|7|V|8|@$9|W|A|X|B|C]]|D|@]|E|$]]|$1|H|3|-4|5|6|7|Y|8|@]|D|@]|E|$]]]|I|$J|$5|K|L|M|E|$N|O]]]]

There's a <a href="https://docs.python.org/2/library/2to3.html" rel="nofollow">script</a> included with Python, usually at <code>[Python Root]/Tools/Scripts/2to3.py</code>. You can run that script on a python file (or directory of python files) and it will handle a lot of the conversions, at least for changes in the standard library.

It gets a little more complicated if your project uses other 3rd party libraries. It's possible the API's for those changed during the 2-to-3 transition, and the <code>2to3.py</code> script will not know about those api changes. Your best bet is to run the conversion script, and then manually make any other changes that are needed.

blocks|key|1126906|text|在任何情况下，我都会首先保存Python+2文件的备份副本。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1126907|然后，您可以尝试使用“2到3”自动Python+2到3代码转换工具来转换代码，该工具是通过标准库内置到Python中的。有关使用的详细信息可以在这里找到：https://docs.python.org/2/library/2to3.html#|offset|length|1126908|您还可以选择两个工具来自动移植您的代码:现代化和未来主义。看看下面。|1126909|现代化->+https://python-modernize.readthedocs.io/en/latest/|1126910|未来主义->+conversion.html|1126911|就Pycharm而言，我没有/不知道IDE中有任何专门工具可以将代码从Python+2转换为Python+3。|1126912|祝好运!|1126913|entityMap|0|LINK|mutability|MUTABLE|url|https://docs.python.org/2/library/2to3.html#|1|https://python-modernize.readthedocs.io/en/latest/|2|http://python-future.org/automatic_conversion.html^0|0|25|18|0|0|0|6|1E|1|0|7|F|2|0|0|0^^$0|@$1|2|3|4|5|6|7|11|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|12|8|@]|9|@$D|13|E|14|1|15]]|A|$]]|$1|F|3|G|5|6|7|16|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|17|8|@]|9|@$D|18|E|19|1|1A]]|A|$]]|$1|J|3|K|5|6|7|1B|8|@]|9|@$D|1C|E|1D|1|1E]]|A|$]]|$1|L|3|M|5|6|7|1F|8|@]|9|@]|A|$]]|$1|N|3|O|5|6|7|1G|8|@]|9|@]|A|$]]|$1|P|3|-4|5|6|7|1H|8|@]|9|@]|A|$]]]|Q|$R|$5|S|T|U|A|$V|W]]|X|$5|S|T|U|A|$V|Y]]|Z|$5|S|T|U|A|$V|10]]]]

Before anything I would save a backup copy of your Python 2 file first.

You can then try to convert the code using the "2to3" Automated Python 2 to 3 code translation tool which is built into Python via the Standard Library.
Details on usage can be found here:
<a href="https://docs.python.org/2/library/2to3.html#" rel="nofollow">https://docs.python.org/2/library/2to3.html#</a>

You also have the choice between two tools to port your code automatically: Modernize and Futurize. Check them out below.

Modernize --> <a href="https://python-modernize.readthedocs.io/en/latest/" rel="nofollow">https://python-modernize.readthedocs.io/en/latest/</a>

Futurize --> <a href="http://python-future.org/automatic_conversion.html" rel="nofollow">http://python-future.org/automatic_conversion.html</a>

In terms of Pycharm, I have not seen / don't know of any specialized tool within the IDE that converts code from Python 2 to Python 3. I'd stick to the 3 tools above.

Good luck!

blocks|key|1450130|text|如果还想在PyCharm+IDE中使用它，可以将其添加为外部工具。|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|1450131|File+->+Settings+->+Tools+->+External+Tools并按%2B按钮。|CODE|1450132|打开一个新窗口，给您的工具命名(例如，2到3)和描述。|1450133|在Program中，将路径添加到脚本中，如果使用Linux，则应该位于/usr/bin/2to3-2.7中。|1450134|在Arguments行中，如果希望工具处理当前打开的文件或当前目录上的.，则添加$FileName$，并添加-w以应用其他答复中看到的更改。|1450135|在$FileDir$行中添加Working+directory。|1450136|按OK，在打开的文件中，转到Tools+->+External+Tools+->+2to3运行脚本。|1450137|entityMap^0|S|4|0|0|4|8|8|K|5|T|E|19|1|0|0|1|7|Z|H|0|1|9|Z|1|14|A|1I|2|0|1|9|E|H|0|E|5|N|E|15|4|0^^$0|@$1|2|3|4|5|6|7|U|8|@$9|V|A|W|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|X|8|@$9|Y|A|Z|B|H]|$9|10|A|11|B|H]|$9|12|A|13|B|H]|$9|14|A|15|B|H]|$9|16|A|17|B|H]]|D|@]|E|$]]|$1|I|3|J|5|6|7|18|8|@]|D|@]|E|$]]|$1|K|3|L|5|6|7|19|8|@$9|1A|A|1B|B|H]|$9|1C|A|1D|B|H]]|D|@]|E|$]]|$1|M|3|N|5|6|7|1E|8|@$9|1F|A|1G|B|H]|$9|1H|A|1I|B|H]|$9|1J|A|1K|B|H]|$9|1L|A|1M|B|H]]|D|@]|E|$]]|$1|O|3|P|5|6|7|1N|8|@$9|1O|A|1P|B|H]|$9|1Q|A|1R|B|H]]|D|@]|E|$]]|$1|Q|3|R|5|6|7|1S|8|@$9|1T|A|1U|B|H]|$9|1V|A|1W|B|H]|$9|1X|A|1Y|B|H]]|D|@]|E|$]]|$1|S|3|-4|5|6|7|1Z|8|@]|D|@]|E|$]]]|T|$]]

If you also want to use it within the PyCharm IDE, you can add it as an external tool:
<code>File</code> -&gt; <code>Settings</code> -&gt; <code>Tools</code> -&gt; <code>External Tools</code> and press the <code>+</code> button.
A new window opens, give a name to your tool (e.g. 2to3) and a description.
In <code>Program</code> add the path to the script, if you use Linux, it should be located in <code>/usr/bin/2to3-2.7</code>
In the <code>Arguments</code> line, add <code>$FileName$</code> if you want your tool to work for the current open file, or <code>.</code> on the current directory, and <code>-w</code> to apply the changes as seen in the other replies.
Add <code>$FileDir$</code> in the <code>Working directory</code> line.
Press OK and in an open file, go to <code>Tools</code> -&gt; <code>External Tools</code> -&gt; <code>2to3</code> to run the script.

blocks|key|1450117|text|您可以使用此免费在线工具快速转换少数文件。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1450118|https://python2to3.com/|offset|length|1450119|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|N|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@$D|O|E|P|1|Q]]|A|$]]|$1|F|3|-4|5|6|7|R|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|C]]]]

You can use this free online tool for quickly converting few files
<a href="https://python2to3.com/" rel="nofollow noreferrer">https://python2to3.com/</a>

I have a large ML project in python 2 code and I just started using PyCharm as an IDE. I'm currently using WinPython 3.4 and I'd preferably like to do everything in python 3 instead of continue using legacy 2. When I cloned the project from git a popup in pycharm came up that was something along the lines of converting the code to 3 from 2 but I didn`t really think about it and exited it. How do I convert it?

Convert python 2 code to 3 in PyCharm

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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我在python2代码中有一个大型的ML项目，我刚刚开始使用PyCharm作为一个IDE。我目前正在使用WinPython 3.4，我更希望在python 3中完成所有的工作，而不是继续使用遗留的2。当我从git克隆这个项目时，出现了一个类似于将代码从2转换为3的弹出窗口，但我并没有真正考虑和退出它。我该如何转换它？

问在PyCharm中将python 2代码转换为3
EN

回答 8

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问在PyCharm中将python 2代码转换为3EN

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问在PyCharm中将python 2代码转换为3
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