How to use 2to3 to translate all files in a directory

Question

I'm able to translate one file. But I don't understand how to translate whole directory. From docs:

To translate an entire project from one directory tree to another use:
$ 2to3 --output-dir=python3-version/mycode -W -n python2-version/mycode

Can you give me a concrete example? I have python2 files in D:\Dir1 and want to get new files in D:\Dir2. I'm now in the command prompt inside Dir1 typing c:\Users\........\Python36\Tools\scripts\2to3.py -w

So what is the command that should I use?

Sounds like you could use a [`FOR`](http://ss64.com/nt/for.html) loop. Or just provide the directory and the script does it automatically? — Alyssa Haroldsen, Jan 21 '17 at 21:36
To convert all python 2 files in a directory to 3, you simply could run `$ C:\Program Files\Python\Tools\Scripts\2to3.py -w .` inside the directory that you want to translate. It would skip all the non `.py` files anyway, and remove the `-w` flag, if you don't want the backup file, — Nuhman, Nov 04 '17 at 02:42

score 9 · Accepted Answer · edited Jan 21 '17 at 21:41

9

Try the following:

D:\Dir1> c:\Users........\Python36\Tools\scripts\2to3.py --output-dir=D:\Dir2 -W -n .\

Notice that it is a -W (capital W).

As an example, I ran the script from my home directory:

┌─[hjpotter92:Hedwig]─[C:\Users\hjpotter92]
└──$ "C:\Program Files\Python\Tools\Scripts\2to3.py" -o Downloads\newFoo -W -n Downloads\Foo

edited Jan 21 '17 at 21:41

Martijn Pieters

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answered Jan 21 '17 at 21:31

hjpotter92

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At least one file or directory argument required. – Dork Jan 21 '17 at 21:35
@Dork what happens when you use `%CD%` instead of ``.\`` at the end? – Martijn Pieters Jan 21 '17 at 21:41

How to use 2to3 to translate all files in a directory

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