sqlalchemy | The Database Toolkit for Python | SQL Database library

by sqlalchemy Python Version: 2.0.15 License: MIT

X-Ray Key Features Code Snippets(3)Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | sqlalchemy Summary

sqlalchemy is a Python library typically used in Database, SQL Database, PostgresSQL applications. sqlalchemy has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has high support. You can install using 'pip install sqlalchemy' or download it from GitHub, PyPI.

The Database Toolkit for Python

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Security

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Support

sqlalchemy has a highly active ecosystem.

It has 7278 star(s) with 1160 fork(s). There are 93 watchers for this library.

There were 10 major release(s) in the last 6 months.

There are 171 open issues and 7137 have been closed. On average issues are closed in 19 days. There are 10 open pull requests and 0 closed requests.

It has a positive sentiment in the developer community.

The latest version of sqlalchemy is 2.0.15

Quality

sqlalchemy has 0 bugs and 0 code smells.

Security

sqlalchemy has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

sqlalchemy code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

sqlalchemy is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

sqlalchemy releases are available to install and integrate.

Deployable package is available in PyPI.

Build file is available. You can build the component from source.

It has 337024 lines of code, 25331 functions and 607 files.

It has medium code complexity. Code complexity directly impacts maintainability of the code.

Top functions reviewed by kandi - BETA

kandi has reviewed sqlalchemy and discovered the below as its top functions. This is intended to give you an instant insight into sqlalchemy implemented functionality, and help decide if they suit your requirements.

Create a relationship between two objects .
Create an engine instance .
Create an instance of the query .
Creates a bind parameter .
Emits insert statements .
Scans the class attributes and generates column copies .
Creates a column .
Returns a CRUDParams object .
Compile a SELECT statement .
Emits the update statement .

Get all kandi verified functions for this library.

sqlalchemy Key Features

The Database Toolkit for Python

sqlalchemy Examples and Code Snippets

Steps-1. Add a new SqlAlchemy Query Store to your Data Context

Python

Lines of Code : 22

License : Permissive (Apache-2.0)

Copy

  my_query_store:
    class_name: SqlAlchemyQueryStore
    credentials: ${rds_movies_db}
    queries:
      current_genre_ids: "SELECT id FROM genres;"  # The query name and value can be replaced with your desired query

  my_query_store:
    class_n

Async SQL (Relational) Databases-Import and set up SQLAlchemy

Python

Lines of Code : 2

License : Permissive (MIT)

Copy

{!../../../docs_src/async_sql_databases/tutorial001.py!}

`databases` is not doing anything here yet.

Create the SQLAlchemy parts-Create a database URL for SQLAlchemy

Python

Lines of Code : 1

License : Permissive (MIT)

Copy

{!../../../docs_src/sql_databases/sql_app/database.py!}
SQLALCHEMY_DATABASE_URL = "postgresql://user:password@postgresserver/db"
This is the main line that you would have to modify if you wanted to use a different database.

Community Discussions

Trending Discussions on sqlalchemy

Python/Docker ImportError: cannot import name 'json' from itsdangerous

How to get Alembic to recognise SQLModel database model?

SQLAlchemy how to escape a bind parameter inside of text()?

How to construct an SQLAlchemy query that first performs an arithmetic operation between two columns and returning it as a new column?

How to set schema_translate_map in SQLAlchemy object in Flask app

Getting a warning when using a pyodbc Connection object with pandas

Auto generate migrations alembic + SQLAlchemy imperative declaration

Use mysql.connector , but get ImportError: Missing optional dependency 'SQLAlchemy'

CardinalityViolation when trying to use nested subqueries to retrieve JSON from Postgres using SQLAlchemy

filter enum in list of enums sqlalchemy

QUESTION

Python/Docker ImportError: cannot import name 'json' from itsdangerous

Asked 2022-Mar-31 at 12:49

I am trying to get a Flask and Docker application to work but when I try and run it using my docker-compose up command in my Visual Studio terminal, it gives me an ImportError called ImportError: cannot import name 'json' from itsdangerous. I have tried to look for possible solutions to this problem but as of right now there are not many on here or anywhere else. The only two solutions I could find are to change the current installation of MarkupSafe and itsdangerous to a higher version: https://serverfault.com/questions/1094062/from-itsdangerous-import-json-as-json-importerror-cannot-import-name-json-fr and another one on GitHub that tells me to essentially change the MarkUpSafe and itsdangerous installation again https://github.com/aws/aws-sam-cli/issues/3661, I have also tried to make a virtual environment named veganetworkscriptenv to install the packages but that has also failed as well. I am currently using Flask 2.0.0 and Docker 5.0.0 and the error occurs on line eight in vegamain.py.

Here is the full ImportError that I get when I try and run the program:

...

ANSWER

Answered 2022-Feb-20 at 12:31

I was facing the same issue while running docker containers with flask.

I downgraded Flask to 1.1.4 and markupsafe to 2.0.1 which solved my issue.

Check this for reference.

Source https://stackoverflow.com/questions/71189819

QUESTION

How to get Alembic to recognise SQLModel database model?

Asked 2022-Feb-27 at 05:01

Using SQLModel how to get alembic to recognise the below model?

...

ANSWER

Answered 2021-Sep-05 at 13:35

There should be info about that in Advanced user guide soon with better explanation than mine but here is how I made Alimbic migrations work.

First of all run alembic init migrations in your console to generate migrations folder. Inside migrations folder should be empty versions subfolder,env.py file, script.py.mako file. In script.py.mako file we should add line import sqlmodel somewhere around these two lines

Source https://stackoverflow.com/questions/68932099

QUESTION

SQLAlchemy how to escape a bind parameter inside of text()?

Asked 2022-Feb-24 at 19:23

How can I escape a : inside of a string passed to text() to prevent SQLAlchemy from treating it like a bindparameter?

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ANSWER

Answered 2022-Feb-24 at 19:23

As mentioned in the docs:

For SQL statements where a colon is required verbatim, as within an inline string, use a backslash to escape

But remember that the backslash is also the escape character in Python string literals, so

Source https://stackoverflow.com/questions/71245281

QUESTION

How to construct an SQLAlchemy query that first performs an arithmetic operation between two columns and returning it as a new column?

Asked 2022-Feb-22 at 16:18

I'm using Flask-SQLAlchemy and I have the following simplified model which I use to track the tasks that I've completed throughout the day. What I'm trying to achieve is to calculate total time spent for each recorded task grouped by task id and client id.

...

ANSWER

Answered 2022-Feb-22 at 14:34

You are trying to group from a column that you aren't querying.

Try including this fields on the query

Source https://stackoverflow.com/questions/71204388

QUESTION

How to set schema_translate_map in SQLAlchemy object in Flask app

Asked 2022-Feb-19 at 23:10

My app.py file

...

ANSWER

Answered 2022-Feb-19 at 23:10

I found a way to accomplish it. This is what needed

Source https://stackoverflow.com/questions/71099132

QUESTION

Getting a warning when using a pyodbc Connection object with pandas

Asked 2022-Feb-11 at 16:32

I am trying to make sense of the following error that I started getting when I setup my python code to run on a VM server, which has 3.9.5 installed instead of 3.8.5 on my desktop. Not sure that matters, but it could be part of the reason.

The error

...

ANSWER

Answered 2022-Feb-11 at 16:30

Is pyodbc becoming deprecated?

No. For at least the last couple of years pandas' documentation has clearly stated that it wants either a SQLAlchemy Connectable (i.e., an Engine or Connection object) or a SQLite DBAPI connection. (The switch-over to SQLAlchemy was almost universal, but they continued supporting SQLite connections for backwards compatibility.) People have been passing other DBAPI connections (like pyodbc Connection objects) for read operations and pandas hasn't complained … until now.

Is there a better way to achieve similar results without warning?

Yes. You can take your existing ODBC connection string and use it to create a SQLAlchemy Engine object as described here:

Source https://stackoverflow.com/questions/71082494

QUESTION

Auto generate migrations alembic + SQLAlchemy imperative declaration

Asked 2022-Feb-02 at 18:03

I'm exploring a new DDD project using SQLAlchemy and Alembic for the first time. I'd like to use imperative mapping to isolate my domain objects. All the doc I can find about auto generating migrations with Alembic is using declarative mapping. Is it because I have to manually write all migrations if I want to use imperative mapping ?

...

ANSWER

Answered 2022-Feb-02 at 18:03

I had to import the metada of the Table I manually defined

Source https://stackoverflow.com/questions/70922312

QUESTION

Use mysql.connector , but get ImportError: Missing optional dependency 'SQLAlchemy'

Asked 2022-Jan-25 at 16:49

I work on a program for two months. Today I suddenly got an error when connecting to the database while using mysql.connector.

Interestingly, this error is not seen when running previous versions.

...

ANSWER

Answered 2022-Jan-25 at 16:49

I just ran into something similar. It looks like Pandas 1.4 was released on January 22, 2022: https://pandas.pydata.org/docs/dev/whatsnew/v1.4.0.html

It has an "optional" dependency on SQLAlchemy, which is required to communicate with any database other than sqlite now, as the comment by snakecharmerb mentioned. Once I added that to my requirements and installed SQLAlchemy, it resolved my problem.

Source https://stackoverflow.com/questions/70836912

QUESTION

CardinalityViolation when trying to use nested subqueries to retrieve JSON from Postgres using SQLAlchemy

Asked 2021-Nov-05 at 02:17

I'm trying to translate the following Postgres query into Sqlalchemy 1.4:

...

ANSWER

Answered 2021-Nov-05 at 02:17

It might be caused by redundant subqueries, you could try to remove the last two subqueries.

Source https://stackoverflow.com/questions/69813822

QUESTION

filter enum in list of enums sqlalchemy

Asked 2021-Nov-01 at 10:45

I have the following enum in python:

...

ANSWER

Answered 2021-Nov-01 at 10:45

You should use in_ operator:

Source https://stackoverflow.com/questions/69725429

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install sqlalchemy

You can install using 'pip install sqlalchemy' or download it from GitHub, PyPI.
You can use sqlalchemy like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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