[Pytest-commit] Issue #183: Boolean algebra and factors (hpk42/tox)

[Alexander Schepanovski]

New issue 183: Boolean algebra and factors
https://bitbucket.org/hpk42/tox/issue/183/boolean-algebra-and-factors

Alexander Schepanovski:

I proposed before something like:

```
[testenv]
deps =
    py26,py27: kind-of-or
    py26-django13: kind-of-and
```

This, however, could look a bit strange when negation is involved:

```
[testenv]
deps =
    py26-!django13: kind-of-and 
```

The alternatives I see is using `|` and `&` or `||` and `&&` (c-like). This, however, will trick users into adding spaces around operators:

```
[testenv]
command =
    factor1 && factor2: kind-of-and 
```

And if we permit spaces then other users could hit conditional syntax without expecting it. Either way (allowing spaces or not) will cause confusion for someone.

I am currently in favor of using commas and hyphens, without allowing spaces. What do you think? Maybe you have other suggestions?

Anyway, I am willing to implement this once we are set up on the interface.


Responsible: hpk42