to a human - about 2to3
Mark Lawrence
breamoreboy at yahoo.co.uk
Wed May 1 13:49:21 EDT 2013
On 01/05/2013 15:52, Jennifer Butler wrote:
> Hiya
>
> I have trawled around your various pages and haven’t found what I want.
>
> I will start teaching Python to my pupils shortly. I have been looking
> for materials and have gathered a collection of programs. The problem is
> they are written in v2 and I have v3 installed in my classroom. I read
> about the 2to3 conversion program, but I can’t get it to work.
>
> Could you possibly give me a Noddy’s guide to do this?
>
> Thanks in anticipation.
>
> Jennifer J
>
Here's the help output. I'd guess (as you don't specify exactly what
doesn't work, 0/10, must try harder :) that you haven't specified -w,
--write in which case the files don't get modified.
c:\Users\Mark\MyPython>2to3 --help
Usage: 2to3 [options] file|dir ...
Options:
-h, --help show this help message and exit
-d, --doctests_only Fix up doctests only
-f FIX, --fix=FIX Each FIX specifies a transformation; default: all
-j PROCESSES, --processes=PROCESSES
Run 2to3 concurrently
-x NOFIX, --nofix=NOFIX
Prevent a transformation from being run
-l, --list-fixes List available transformations
-p, --print-function Modify the grammar so that print() is a function
-v, --verbose More verbose logging
--no-diffs Don't show diffs of the refactoring
-w, --write Write back modified files
-n, --nobackups Don't write backups for modified files
-o OUTPUT_DIR, --output-dir=OUTPUT_DIR
Put output files in this directory instead of
overwriting the input files. Requires -n.
-W, --write-unchanged-files
Also write files even if no changes were required
(useful with --output-dir); implies -w.
--add-suffix=ADD_SUFFIX
Append this string to all output filenames.
Requires
-n if non-empty. ex: --add-suffix='3' will
generate
.py3 files.
--
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Mark Lawrence
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