RefactoringTool: ParseError: bad input: type=22, value='='

Question

I’m refactoring some python2 code and changing it to python3 using 2to3 module. I’ve received following parse error:

RefactoringTool: There was 1 error:
RefactoringTool: Can't parse ./helpers/repo.py: ParseError: bad input: type=22, value='=', context=(' ', (45, 25))

Here is a code that yields the error:

    except ImportError as error_msg:  # pragma: no cover                           
        print(' ',  file = sys.stderr) # this is a line that yields error                                          
        print("Could not locate modifyrepo.py", file=sys.stderr)                
        print("That is odd... should be with createrepo", file=sys.stderr)      
        raise ImportError(error_msg)

I have no clue what could be wrong. Can you please help?

Asked By: cmd

||

Source

Answer 1

The problem is that the code that you’re trying to convert is not valid Python 2 code.

When running your code using Python 2, you’ll get the following error:

  File "repo.py", line 5
    print(' ',  file = sys.stderr) # this is a line that yields error
                     ^
SyntaxError: invalid syntax

It seems like this code already is Python 3 code. Using Python 3 your code does not yield a SyntaxError.

Answered By: wovano

Answer 2

I found that absolute import addressing sorted this for me. Syntax was all fine, but relative import with the following gave an error.

Failed:

from . import classes.utility as util

Works:

from classes import utility as util

This may just be my lack of understanding of imports in Python3 though.

Answered By: Doug

Answer 3

If you have already converted your print statements to functions (as you have done) you can use the -p parameter when invoking 2to3

-p, –print-function Modify the grammar so that print() is a
function

E.g.

2to3 -p yourfile.py

Answered By: joctee

Answer 4

I got a similar issue.
My print statements were already converted to functions.

The issue was that the import of the print function was done as

from __future__ import (
    unicode_literals,
    print_function,
)

To fix it, I had to put the import on a separate, dedicated line line

from __future__ import print_function

Hope it helps

Answered By: Adi Roiban

RefactoringTool: ParseError: bad input: type=22, value='='

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