I try install odoo environment, and I get error like below. How can I set   pg_config path ?

ERROR: Command errored out with exit status 1:
command: 'c:\python\python.exe' -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\Lenovo\\AppData\\Local\\Temp\\pip-install-t3vejbyj\\psycopg2\\setup.py'"'"'; __file__='"'"'C:\\Users\\Lenovo\\AppData\\Local\\Temp\\pip-install-t3vejbyj\\psycopg2\\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base pip-egg-info
cwd: C:\Users\Lenovo\AppData\Local\Temp\pip-install-t3vejbyj\psycopg2\
Complete output (23 lines):
running egg_info
creating pip-egg-info\psycopg2.egg-info
writing pip-egg-info\psycopg2.egg-info\PKG-INFO
writing dependency_links to pip-egg-info\psycopg2.egg-info\dependency_links.txt
writing top-level names to pip-egg-info\psycopg2.egg-info\top_level.txt
writing manifest file 'pip-egg-info\psycopg2.egg-info\SOURCES.txt'

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>).