Can't connect the postgreSQL with psycopg2

Question

It\'s the first time that I can\'t find the answer about some tech problems Here\'s my problems:

>> conn=psycopg2.connect(database=\"mydb\", user=\"pos         


        

Answer 1

Your libpq, which is used by psycopg2 expects Postgres socket to be in /var/run/postgresql/ but when you install Postgres from source it is by default it in /tmp/.

Check if there is a file /tmp/.s.PGSQL.5432 instead of /var/run/postgresql/.s.PGSQL.5432. Try:

conn=psycopg2.connect(
  database="mydb",
  user="postgres",
  host="/tmp/",
  password="123"
)