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How do I connect to a MySQL Database in Python?

445

How do I connect to a MySQL database using a python program?

2Answer


0

Once you know how it works, you may want to use an ORM to avoid writting SQL manually and manipulate your tables as they were Python objects. The most famous ORM in the Python community is SQLAlchemy.

I strongly advise you to use it: your life is going to be much easier.

I recently discovered another jewel in the Python world: peewee. It's a very lite ORM, really easy and fast to setup then use. It makes my day for small projects or stand alone apps, where using big tools like SQLAlchemy or Django is overkill :

import peewee
from peewee import *

db = MySQLDatabase('jonhydb', user='john',passwd='megajonhy')

class Book(peewee.Model):
    author = peewee.CharField()
    title = peewee.TextField()

    class Meta:
        database = db

Book.create_table()
book = Book(author="me", title='Peewee is cool')
book.save()
for book in Book.filter(author="me"):
    print book.title

Peewee is cool

This example works out of the box. Nothing other than having peewee (pip install peewee :-)) is required. No complicated setup. It's really cool.

  • answered 2 years ago
  • Gul Hafiz

0

Here's one way to do it.

#!/usr/bin/python
import MySQLdb

# connect
db = MySQLdb.connect(host="localhost", user="appuser", passwd="",
db="onco")

cursor = db.cursor()

# execute SQL select statement
cursor.execute("SELECT * FROM LOCATION")

# commit your changes
db.commit()

# get the number of rows in the resultset
numrows = int(cursor.rowcount)

# get and display one row at a time.
for x in range(0,numrows):
    row = cursor.fetchone()
    print row[0], "-->", row[1]
  • answered 2 years ago
  • Sunny Solu

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