On Feb 7, 2013, at 10:43, David MacMahon <davidm / astro.berkeley.edu> =
wrote:
> I think the number of real world uses of something like:
>=20
> {:a =3D> 0, 'a' =3D> 1}
>=20
> is likely to be very small.

Every time you run `gem` you use a hash that contains both symbol and =
string keys used for different purposes.

In ~/.gemrc symbols are used for configuration options while strings are =
used for command default arguments.