Python interpreter file browser resolves symlinks

[mrclary]

The Python interpreter file browser in the Preferences resolves symlinks and it should not.

Python executables in virtual environments frequently are symlinks to Python executables located elsewhere, and thus outside the virtual environment. When Spyder locates standard virtual environments (e.g. pyenv and conda) the path to the Python executable is correctly unresolved. However, when selecting the environment Python executable via the file browser, the symlink is resolved resulting in an incorrect environment when launched.