The following python code enables me to take a string of words and replace spaces with hyphens in every possible combination: 

from itertools import product

def dashed_combos(inputstring):
    words = inputstring.split()
    for combo in product(' -', repeat=len(words) - 1):
        yield ''.join(w for pair in zip(words, combo + ('',)) for w in
+ pair)

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This will produce the following combinations from the string 'convert perl to-python'

'convert perl-to python'
'convert-perl to python'
'convert perl-to-python'
'convert-perl-to python'
'convert-perl-to-python'

[download]

I'm now trying to do exactly the same with perl. I've found a few modules that can produce the cartesian product (e.g. Math::Cartesian::Product and nested loops from Algorithm::Loops), although not being that familiar with perl I've struggled to get these to work to do what had worked so well in python. If anyone would be so kind as to help me here that would be great, as I've spent quite a while trying now, but with little joy.

In reply to Python to perl: itertools product to replace a char in string in each possible position by danj35

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