[Pytest-commit] Issue #190: Generative setenv fails if there’s only one variable (hpk42/tox)

[Hynek Schlawack]

New issue 190: Generative setenv fails if there’s only one variable
https://bitbucket.org/hpk42/tox/issue/190/generative-setenv-fails-if-there-s-only

Hynek Schlawack:

Consider this minimal tox.ini:

```ini
[tox]
envlist = py27-{a,b}

[testenv]
deps =
    b: pytest
setenv =
    a: A = 1
commands = true
```

Running `tox -l` on it fails with

```
Traceback (most recent call last):
  File "/Users/hynek/.local/bin/tox", line 9, in <module>
    load_entry_point('tox==1.8.0', 'console_scripts', 'tox')()
  File 
"/Users/hynek/.local/venvs/tox/lib/python2.7/site-packages/tox/_cmdline.py", 
line 25, in main
    config = parseconfig(args, 'tox')
  File 
"/Users/hynek/.local/venvs/tox/lib/python2.7/site-packages/tox/_config.py", 
line 42, in parseconfig
    parseini(config, inipath)
  File 
"/Users/hynek/.local/venvs/tox/lib/python2.7/site-packages/tox/_config.py", 
line 296, in __init__
    self._makeenvconfig(name, section, reader._subs, config)
  File 
"/Users/hynek/.local/venvs/tox/lib/python2.7/site-packages/tox/_config.py", 
line 354, in _makeenvconfig
    setenv.update(reader.getdict(section, 'setenv'))
  File 
"/Users/hynek/.local/venvs/tox/lib/python2.7/site-packages/tox/_config.py", 
line 529, in getdict
    name, rest = line.split('=', 1)
ValueError: need more than 1 value to unpack
```

while

```ini
[tox]
envlist = py27-{a,b}

[testenv]
setenv =
    a: A = 1
    b: B = 1
commands = true
```

and

```ini
[tox]
envlist = py27

[testenv]
setenv =
    A = 1
commands = true
```

work just fine.


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