[2.0] [feature/feedback] conans.model.version.Version needs to be converted to str

When downloading source using conan.tools.files.get, we are using the conandata.yml to store url depending on the recipe version.

This result in this pattern:

class MyPackageConan(ConanFile):
    name = "my-package"
    version = "1.0.0"

    def source(self):
        files.get(self, **self.conan_data["sources"][self.version], strip_root=True)

However, in this case, conan will complain with this error:

ERROR: my-package/1.0.0: Error in source() method, line 20
	files.get(self, **self.conan_data["sources"][self.version], strip_root=True)
	KeyError: 1.0.0

Proposition:

Make Version convert to str as we had for 1.0.

• I’ve read the CONTRIBUTING guide.

[memsharded]

Implemented in https://github.com/conan-io/conan/pull/10519, to be in next alpha 4

[memsharded]

We have discussed this, and we have decided to leave the “str” type as base. People wanting to use self.version for full comparisons can:

• Explicitly convert to Version(self.version)
• Use self.ref.version