Python Developer

I am trying to determine the simplest way to insert data from a python list into a PostgreSQL table… Read more How To Insert A Python List Into Postgres Table

I have a project on Django 1.4.3 and try to set up on my mac. But raise an error KeyError: 'DA… Read more Keyerror: 'database_url' In Django 1.4

The Model is below plus error message below that. I am trying to create some array columns using Al… Read more Alembic Sqlalchemy Postgres "nameerror: Name 'string' Is Not Defined" Trying To Add Array(string) Fields

In my Django app I have a Publication model and a Tag model which have a many to many relationship.… Read more What Is An Efficient Way To Do An And/or Search Django-postgres App?

The following Python code snippet illustrates the issue: print('starting') # I am trying t… Read more Configure Query/command Timeout With Sqlalchemy Create_engine?

Django v1.11.5 I'm trying to install GeoDjango to play around with GoogleMaps. I installed Post… Read more Geodjango: Postgresql Not Running Migrations, Object Has No Attribute 'geo_db_type

Using Python 2.7 and In [150]: psycopg2.version Out[150]: '2.4.2 (dt dec pq3 ext)' I have … Read more Graceful Primary Key Error Handling In Python/psycopg2

I followed the following steps: [I am using Windows 8, Python 2.7.6] I created a virtual environme… Read more I Have Psycopg2 Installed In Virtual Env, But Still Getting Importerror Psycopg2

I have following Group and Contact model in flask with Sql Alchemy ORM group_contact = db.Table( … Read more Flask Many To Many Join As Done By Prefetch_related From Django

My model looks like class Category(UserMixin, db.Model): __tablename__ = 'categories' … Read more Sqlalchemy: Alembic Bulk Insert Fails: 'str' Object Has No Attribute '_autoincrement_column'

I get the following error when I try to deploy my latest version to Heroku: could not connect to se… Read more Heroku Django: Operational Error Connection Refused

With pgsql function SelRec(integer) as defined below: -- select record CREATE OR REPLACE FUNCTION S… Read more How To Get Returned Query Object Of Postgresql Function In Python?

It takes average of about 0.300095081329 for my insert to go through to finish commit to postgres. … Read more How To Scale Psycopg2 Insert And Select With Single Process In Python?

I am on windows 7 64 bit. I have a csv file 'data.csv'. I want to import data to a postgres… Read more Copy Data From Csv To Postgresql Using Python

AttributeError: sqlalchemy object has no attribute 'Models' and some times ModuleNotFoundEr… Read more Attributeerror: 'sqlalchemy' Object Has No Attribute 'models'

I have an application that is being run on Google's App Engine and I want it to use the associa… Read more How To Setup Psycopg2 With Google App Engine Postgresql Database

Currently I am installing psycopg2 for work within eclipse with python. I am finding a lot of probl… Read more Problems Using Psycopg2 On Mac Os (yosemite)

I was solving this example : https://www.windowfunctions.com/questions/grouping/5 Here, they use Or… Read more How To Get Postgres Command 'nth_value' Equivalent In Pyspark Hive Sql?

I'm trying to add new formset field to my model/forms, but when i want save it, i gets an error… Read more Django Error / Value Too Long For Type Character Varying(1)

I have a postgresql 9.4 (aka mongodb killer ;-) ) and this simple schema : CREATE TABLE test (id SE… Read more Jsonb With Psycopg2 Realdictcursor