The first run of the install script fails with ansible-playbook: command not found

[dwmkerr]

Run the install script, the first time you'll see:

 Running setup.py install for PyYAML
    Running command /usr/bin/python2.7 -c "import setuptools, tokenize;__file__='/tmp/pip-build-nxCpVT/PyYAML/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-dMThSr-record/install-record.txt --single-version-externally-managed --compile
  Running setup.py install for pycrypto
    Running command /usr/bin/python2.7 -c "import setuptools, tokenize;__file__='/tmp/pip-build-nxCpVT/pycrypto/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-j7w1_Q-record/install-record.txt --single-version-externally-managed --compile
  Running setup.py install for ansible
    Running command /usr/bin/python2.7 -c "import setuptools, tokenize;__file__='/tmp/pip-build-nxCpVT/ansible/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-gItayt-record/install-record.txt --single-version-externally-managed --compile
Successfully installed MarkupSafe-0.23 PyYAML-3.12 ansible-2.2.0.0 appdirs-1.4.0 cffi-1.9.1 cryptography-1.7.2 enum34-1.1.6 idna-2.2 ipaddress-1.0.18 jinja2-2.9.5 packaging-16.8 paramiko-2.1.1 pyasn1-0.1.9 pycparser-2.17 pycrypto-2.6.1 pyparsing-2.1.10 setuptools-34.1.0 six-1.10.0
Cleaning up...
Cloning into 'openshift-ansible'...
bash: line 10: ansible-playbook: command not found

Run it again - no problems. Annoying.