These packages were known to work with Penny 0.32.0.0.  These are
all the packages you will need, including for building the tests.

/var/lib/ghc/package.conf.d:
    Cabal-1.16.0
    array-0.4.0.1
    base-4.6.0.1
    bin-package-db-0.0.0.0
    binary-0.5.1.1
    bytestring-0.10.0.2
    containers-0.5.0.0
    deepseq-1.3.0.1
    directory-1.2.0.1
    filepath-1.3.0.1
    (ghc-7.6.3)
    ghc-prim-0.3.0.0
    (haskell2010-1.1.1.0)
    (haskell98-2.0.0.2)
    hoopl-3.9.0.0
    hpc-0.6.0.0
    integer-gmp-0.5.0.0
    old-locale-1.0.0.5
    old-time-1.1.0.1
    pretty-1.1.1.0
    process-1.1.0.2
    rts-1.0
    template-haskell-2.8.0.0
    time-1.4.0.1
    unix-2.6.0.1

/home/massysett/penny/.cabal-sandbox/x86_64-linux-ghc-7.6.3-packages.conf.d:
    MonadRandom-0.1.13
    QuickCheck-2.6
    action-permutations-0.0.0.0
    anonymous-sums-0.2.0.0
    base-unicode-symbols-0.2.2.4
    cereal-0.4.0.1
    comonad-4.0
    contravariant-0.4.4
    distributive-0.4
    either-4.1.1
    hashable-1.2.1.0
    haskell-lexer-1.0
    matchers-0.14.0.0
    monad-control-0.3.2.3
    mtl-2.1.2
    multiarg-0.24.0.0
    nats-0.1.2
    ofx-0.4.0.0
    parsec-3.1.5
    penny-0.32.0.0
    prednote-0.18.0.0
    pretty-show-1.6.7
    rainbow-0.6.0.0
    random-1.0.1.1
    random-shuffle-0.0.4
    semigroupoids-4.0
    semigroups-0.12.2
    split-0.2.2
    tagged-0.7
    terminfo-0.4.0.0
    text-1.1.0.0
    transformers-0.3.0.0
    transformers-base-0.4.1
    transformers-compat-0.1.1.1
    unordered-containers-0.2.3.3