Integrating Alembic with SQLAlchemy

I'm looking at a way to integrate Alembic with SQLAlchemy. What I need is a way so that Alembic detects any changes I make in models.py automatically and updates it in the MySQL database when I...

sqlalchemy.exc.ArgumentError: Can't load plugin: sqlalchemy.dialects:driver

I am trying to run alembic migration and when I run alembic revision --autogenerate -m "Added initial tables" It fails saying sqlalchemy.exc.ArgumentError: Can't load plugin:...

Alembic: How to migrate custom type in a model?

My User model is class User(UserMixin, db.Model): __tablename__ = 'users' # noinspection PyShadowingBuiltins uuid = Column('uuid', GUID(), default=uuid.uuid4, primary_key=True, ...

Target database is not up to date

I'd like to make a migration for a Flask app. I am using Alembic. However, I receive the following error. Target database is not up to date. Online, I read that it has something to do with...

Creating seed data in a flask-migrate or alembic migration

How can I insert some seed data in my first migration? If the migration is not the best place for this, then what is the best practice? """empty message Revision ID: 384cfaaaa0be Revises:...

Adding Naming Convention to Existing Database

I'm using sqlalchemy and am trying to integrate alembic for database migrations. My database currently exists and has a number of ForeignKeys defined without names. I would like to add a naming...

How can I ignore certain schemas with alembic --autogenerate

I have a library that's part of a bigger project. The library uses its own schema in a (PostgreSQL) database shared with the larger project. I want to use alembic revision --autogenerate to only...

alembic + sqlalchemy multiple databases

Within Flask i have setup SQLAlchemy to use multiple databases which are selected upon request as described in https://quanttype.net/posts/2016-03-15-flask-sqlalchemy-and-multitenancy.html So...

How to specific table schema for alembic_version when using flask-migrate

I using flask-migrate with PostgreSQL, when I execute python manage.py db upgrade command it will generate alembic_version table in public schema. How can I change the default schema when generate...

CommandError: Can't locate revision identified by '...' when migrating using Flask-Migrate

I started using Flask-Migrate today and installed it on a test project. However i am getting following error: alembic.util.exc.CommandError: Can't locate revision identified...

airflow webserver starting - gunicorn workers shutting down

I am running airflow 1.8 on centos7 on docker and my webserver is not getting to the browser. I installed airflow via pip2.7. Flower ui is displaying fine, initdb ran connecting to a postgres...

How to create a .usdz animation?

You can now convert 3D models to .usdz files (uncompressed zip archive) using Apple's command line tool bundled with Xcode 10 beta. Example code to convert an .obj file to .usdz: xcrun...

Is there any way to generate sequential Revision IDs in Alembic?

I'm using Alembic as a database migration tool for a Python project. When I run a command like this: alembic revision -m "adding a column" ...it will add a new file called...

How to Convert .USDz formats to .OBJ or .ABC files?

I have been trying to build a solution to converting from .USDZ to other [3D formats]. Using online options you may convert [3D formats] to .USDz...

ModuleNotFoundError: No module named 'flask_migrate'

I'm new to python+flask, and wanted to use flask to create a website. The IDE is Visual studio 2017, and I could run the program successfully with flasky.py as startup file. But in CLI, I...

Alembic Downgrade,Upgrade,Revision and Migrate are doing nothing

EDIT: This apparently is effecting trying to upgrade or create a new revision file as well. I've been trying to run a downgrade in Alembic, which I have gotten to work before, with no luck. My...

Cuda Runtime Error cudaErrorNoDevice: no CUDA-capable device is detected

I am using Chainer, Cupy for CUDA 8.0 . I am trying to train machine learning model using python3.5 script, but I got this error: cupy.cuda.runtime.CUDARuntimeError: cudaErrorNoDevice: no...

Alembic. ModuleNotFoundError in env.py

I have foloving project structure --some db: --some db: --alchemy: -- __init__.py --alembic: -- versions -- env.py ...

Alembic : auto generate migration doesn't work

I have an error when I want to do an auto generate migration with alembic. Project tree : - alembic.ini - axis.py - tree.txt - alembic - env.py - README - ...

Single Schema Postgres Alembic Autogenerate Migration

I have a Postgres server which we have one database in. This one database is our data warehouse. We have a schema per software application in this database. I'm working on a new project which I'm...

How to use an existing sqlalchemy Enum in an Alembic migration (Postgres)

At some point in the past I've run an alembic migration which creates a users table like... def upgrade(): ... op.create_table( "users", sa.Column("id", sa.Integer(),...

Apple M1: install psycopg2 package Symbol not found: _PQbackendPID

pg_config venv ❯ which pg_config /Applications/Postgres.app/Contents/Versions/latest/bin/pg_config pip3 install -r requirements.txt requirements.txt venv ❯ cat requirements.txt -i...

Apache Airflow on Ubuntu 20.04 not running after fresh install

I followed the steps from https://stackoverflow.com/questions/62453997/running-airflow-on-ubuntu-20-04-typeerror-required-field-type-ignores-missin, and received the following: (airflow-uGvev7QO)...

NameError: name '_mysql' is not defined -- On airflow start in MacOSX

There are numbers of articles on the titled question but none of them worked for me. The detailed error is as follows: Traceback (most recent call last): File...

Fatal Error: The pgAdmin 4 server could not be contacted: (Windows 10 Pro)

This the error in my PGAdmin4. I have deleted data from AppData (Roaming) and also tried to run it as Admisitaror. But no solutions for this problem has been found by me. I am trying to solve this...

Python AWS Lambda Error "libgomp.so.1: cannot open shared object file: No such file or directory" from AWS EFS file system mounted on Ubuntu

I have an AWS lambda function connected to an AWS EFS mounted on a EC2 instance of Ubunutu 18. I am getting this error below when importing a LightGBM model i believe. { "errorMessage":...

How to install PyCaret in AWS Glue

How can I properly install PyCaret in AWS Glue? Methods I tried: --additional-python-modules and --python-modules-installer-option Python library path easy_install as described in...

pathlib: cannot import name 'Sequence' from 'collections'

It has been a few days since I rebuilt my project but when I was testing some things this morning I wanted to update my Werkzeug package due to an issue I was having with its Multidict class, I...

Apache Airflow broken migration prevents from running standalone mode

I've installed Apache Airflow locally, using Pip, and run in standalone mode like instructed in the Docs. The problem After the restart, trying to run again airflow standalone, gives me this...

Getting DLL error when running tensorflow/keras program on python gpu 3.8

I am trying to run my simple AI program but I keep getting this DLL error: ImportError: Could not find the DLL(s) 'msvcp140_1.dll'. TensorFlow requires that these DLLs be installed in a...