can't import pg_config

[prakharmsd]

Error: pg_config executable not found.

pg_config is required to build psycopg2 from source.  Please add the directory
containing pg_config to the $PATH or specify the full executable path with the
option:

    python setup.py build_ext --pg-config /path/to/pg_config build ...

or with the pg_config option in 'setup.cfg'.

If you prefer to avoid building psycopg2 from source, please install the PyPI
'psycopg2-binary' package instead.

For further information please check the 'doc/src/install.rst' file (also at
<http://initd.org/psycopg/docs/install.html>).

----------------------------------------

WARNING: Discarding https://files.pythonhosted.org/packages/dd/56/c22da10f5a725d61c58a185ec0f803aa2d384646ee8eb83d8ce88ed5edb1/psycopg2-binary-2.7.7.tar.gz#sha256=b19e9f1b85c5d6136f5a0549abdc55dcbd63aba18b4f10d0d063eb65ef2c68b4 (from https://pypi.org/simple/psycopg2-binary/). Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.