To the knowledgeable all

from: A confused, stuck prole.

As part of a (self-interest) project, I read in a spreadsheet using Spreadsheet::ReadSXC, downloaded and installed from CPAN - historical reasons for the choice, but not relevant to my query here.

As part of the code sequence, that specific module raised 4 warnings about an uninitialised variable in its operation when a open my source (LibreOffice)spreadsheet. So, muggins here decides to add a print statement to the ReadSXC.pm module held in the perl site library on my laptop, to try and find out what is causing the problem. I did the edit and re-saved the module in the file structure. However, when I now run my project I get the error "Spreadsheet::ReadSXC not installed at ...". So, and this is the crux of my query, - am I not permitted to edit any perl module on my own machine? What is it that 'knows' that the module is not as originally installed and HOW does it know? I haven't changed any version number or any other identifying information in the module. Is it fixable - ie without downloading and re-installing the CPAN source, which will just get me back to my original, observed situation? When I do a CPAN -l, the module is listed as 'undef' if that helps any. I'm afraid I know nothing about any of the Perl 'admin' operational 'structure' so any guidance would be most welcome on this matter.

In reply to editing of installed modules, a story of failure by gsd4me

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