I've noticed CPANPLUS's CLI, cpanp can install WWW-Mechanize, but not Scalar-List-Utils. This seems wrong, since it ought to know that this is a valid distribution. (I chose WWW-Mechanize because it is a distribution which happens to contain a module called WWW::Mechanize; Scalar-List-Utils contains no Scalar::List::Utils module.) 

$ cpanp
CPANPLUS::Shell::Default -- CPAN exploration and module installation (
+v0.88)
[snip]
CPAN Terminal> install Scalar-List-Utils

[ERROR] 'Scalar-List-Utils' does not contain an author part

[ERROR] Cannot find 'Scalar-List-Utils' in the module tree

No such module: Scalar-List-Utils
No modules found to operate on!
Nothing done

[download]

This is the latest version of CPANPLUS, v0.88.

Indeed, it cannot install PathTools (Cwd and File::Spec), libwww-perl (the LWP modules), nor perl-ldap (Net::LDAP et al.). It seems that if the distribution is not also the name of a module it includes, CPANPLUS can't find it.

The reason I ask about this is because I encountered this problem using CPANPLUS::Backend->parse_module, which has a similar problem, even though the manpage for it implies it can handle multiple forms of module names and distribution names: 

parse_module tries to find a CPANPLUS::Module object that matches your
+ query. Here's a list of examples you could give to parse_module;

Text::Bastardize
Text-Bastardize
Text-Bastardize-1.06
AYRNIEU/Text-Bastardize
AYRNIEU/Text-Bastardize-1.06
AYRNIEU/Text-Bastardize-1.06.tar.gz
http://example.com/Text-Bastardize-1.06.tar.gz
file:///tmp/Text-Bastardize-1.06.tar.gz
/tmp/Text-Bastardize-1.06
./Text-Bastardize-1.06

[download]

And elsewhere:

@mods can be a list of distribution names, module names or module obje
+cts, basically anything that parse_module can understand.

[download]

But parse_module fails if given Scalar-List-Utils etc. Presumably either the documentation or the implementation is wrong? How do I get a CPANPLUS::Module instance from a distribution name?

In reply to CPANPLUS won't install distros by name (e.g. Scalar-List-Utils) by wu-lee

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