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Only import psycopg2 where it is used #20

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Only import psycopg2 where it is used #20

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3 changes: 2 additions & 1 deletion citext/__init__.py
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Original file line number Diff line number Diff line change
@@ -1,6 +1,5 @@
from __future__ import unicode_literals

import psycopg2.extensions
import sqlalchemy
import sqlalchemy.types as types
from sqlalchemy.dialects.postgresql.base import ischema_names
Expand Down Expand Up @@ -43,6 +42,8 @@ def process(value):

def register_citext_array(engine):
"""Call once with an engine for citext values to be returned as strings instead of characters"""
import psycopg2.extensions

results = engine.execute(sqlalchemy.text("SELECT typarray FROM pg_type WHERE typname = 'citext'"))
oids = tuple(row[0] for row in results)
array_type = psycopg2.extensions.new_array_type(oids, 'citext[]', psycopg2.STRING)
Expand Down