support multiple requirements.txt files

[pytoxbot]

• Bitbucket: https://bitbucket.org/hpk42/tox/issue/362
• Originally reported by: whit537
• Originally created at: 2016-09-14T16:29:43.579

In our projects we find it useful to have multiple pip requirements files, requirements.txt for our main dependencies, and then things like requirements_test.txt for test dependencies, and requirements_docs.txt for Sphinx.

Steps

1. Add two deps keys to a testenv config section, each specifying a different requirements file using -r.
2. tox -r

Expected

Dependencies from both requirements files are installed.

Actual

ParseError: duplicate name 'deps'

[aspen] $ tox -r
Traceback (most recent call last):
  File "/Users/whit537/personal/AspenWeb/aspen.py/env/bin/tox", line 11, in <module>
    sys.exit(cmdline())
  File "/Users/whit537/personal/AspenWeb/aspen.py/env/lib/python3.5/site-packages/tox/session.py", line 38, in main
    config = prepare(args)
  File "/Users/whit537/personal/AspenWeb/aspen.py/env/lib/python3.5/site-packages/tox/session.py", line 26, in prepare
    config = parseconfig(args)
  File "/Users/whit537/personal/AspenWeb/aspen.py/env/lib/python3.5/site-packages/tox/config.py", line 229, in parseconfig
    parseini(config, inipath)
  File "/Users/whit537/personal/AspenWeb/aspen.py/env/lib/python3.5/site-packages/tox/config.py", line 644, in __init__
    self._cfg = py.iniconfig.IniConfig(config.toxinipath)
  File "/Users/whit537/personal/AspenWeb/aspen.py/env/lib/python3.5/site-packages/py/_iniconfig.py", line 71, in __init__
    self._raise(lineno, 'duplicate name %r'%(name, ))
  File "/Users/whit537/personal/AspenWeb/aspen.py/env/lib/python3.5/site-packages/py/_iniconfig.py", line 75, in _raise
    raise ParseError(self.path, lineno, msg)
py._iniconfig.ParseError: /Users/whit537/personal/AspenWeb/aspen.py/tox.ini:6: duplicate name 'deps'

Notes

I also tried using a single deps key like so:

deps=-rrequirements.txt -rrequirements_tests.txt

and:

deps=-rrequirements.txt,-rrequirements_tests.txt

[pytoxbot]

Original comment by Changaco

The syntax you're looking for is

deps =
    -rrequirements.txt
    -rrequirements_tests.txt