@Michael-Vowles doesn't sound like you got a complete install of python. Once I set up /overlay on an SD card I installed python and it looked like this:

opkg install python

Installing python (2.7.13-3) to root...
Downloading http://repo.onion.io/omega2/packages/packages/python_2.7.13-3_mipsel_24kc.ipk.
Installing python-light (2.7.13-3) to root...
Downloading http://repo.onion.io/omega2/packages/packages/python-light_2.7.13-3_mipsel_24kc.ipk.
Installing python-base (2.7.13-3) to root...
Downloading http://repo.onion.io/omega2/packages/packages/python-base_2.7.13-3_mipsel_24kc.ipk.
Installing python-ctypes (2.7.13-3) to root...
Downloading http://repo.onion.io/omega2/packages/packages/python-ctypes_2.7.13-3_mipsel_24kc.ipk.
Installing python-pydoc (2.7.13-3) to root...
Downloading http://repo.onion.io/omega2/packages/packages/python-pydoc_2.7.13-3_mipsel_24kc.ipk.
Installing python-multiprocessing (2.7.13-3) to root...
Downloading http://repo.onion.io/omega2/packages/packages/python-multiprocessing_2.7.13-3_mipsel_24k
c.ipk.
Installing python-logging (2.7.13-3) to root...
Downloading http://repo.onion.io/omega2/packages/packages/python-logging_2.7.13-3_mipsel_24kc.ipk.
Installing python-codecs (2.7.13-3) to root...
Downloading http://repo.onion.io/omega2/packages/packages/python-codecs_2.7.13-3_mipsel_24kc.ipk.
Installing python-sqlite3 (2.7.13-3) to root...
Downloading http://repo.onion.io/omega2/packages/packages/python-sqlite3_2.7.13-3_mipsel_24kc.ipk.
Installing python-gdbm (2.7.13-3) to root...
Downloading http://repo.onion.io/omega2/packages/packages/python-gdbm_2.7.13-3_mipsel_24kc.ipk.
Installing python-email (2.7.13-3) to root...
Downloading http://repo.onion.io/omega2/packages/packages/python-email_2.7.13-3_mipsel_24kc.ipk.
Installing python-distutils (2.7.13-3) to root...
Downloading http://repo.onion.io/omega2/packages/packages/python-distutils_2.7.13-3_mipsel_24kc.ipk.
Installing python-openssl (2.7.13-3) to root...
Downloading http://repo.onion.io/omega2/packages/packages/python-openssl_2.7.13-3_mipsel_24kc.ipk.
Installing python-xml (2.7.13-3) to root...
Downloading http://repo.onion.io/omega2/packages/packages/python-xml_2.7.13-3_mipsel_24kc.ipk.
Installing python-compiler (2.7.13-3) to root...
Downloading http://repo.onion.io/omega2/packages/packages/python-compiler_2.7.13-3_mipsel_24kc.ipk.
Installing python-db (2.7.13-3) to root...
Downloading http://repo.onion.io/omega2/packages/packages/python-db_2.7.13-3_mipsel_24kc.ipk.
Installing python-decimal (2.7.13-3) to root...
Downloading http://repo.onion.io/omega2/packages/packages/python-decimal_2.7.13-3_mipsel_24kc.ipk.
Installing python-unittest (2.7.13-3) to root...
Downloading http://repo.onion.io/omega2/packages/packages/python-unittest_2.7.13-3_mipsel_24kc.ipk.
Installing python-ncurses (2.7.13-3) to root...
Downloading http://repo.onion.io/omega2/packages/packages/python-ncurses_2.7.13-3_mipsel_24kc.ipk.
Configuring python-base.
Configuring python-light.
Configuring python-codecs.
Configuring python-db.
Configuring python-decimal.
Configuring python-distutils.
Configuring python-pydoc.
Configuring python-ctypes.
Configuring python-multiprocessing.
Configuring python-logging.
Configuring python-sqlite3.
Configuring python-gdbm.
Configuring python-email.
Configuring python-openssl.
Configuring python-xml.
Configuring python-compiler.
Configuring python-unittest.
Configuring python-ncurses.
Configuring python.
root@Omega-685F:/etc/opkg# which python
/usr/bin/python
root@Omega-685F:/etc/opkg# ls -la /usr/bin/python
lrwxrwxrwx 1 root root 9 Jan 16 19:31 /usr/bin/python -> python2.7

best regards,
Larry