I am getting ImportError: No module named 'mysql' while I do the following...
>>> import mysql.connector
MySQL is installed and am on Python 3.5. I can't figure out. The above command is running fine in Python 2.7.
Unfortunately there is no mysql-connector available for python3.5.
So, you can use pymysql module which is a replacement for mysql-connector package
pip install pymysql
import pymysql
Connection = pymysql.connect(host='hostname', user='username', password='password',
db='database',charset='utf8mb4',cursorclass=pymysql.cursors.DictCursor )
ExecuteQuery(Connection)
Connection.close()
For me (OS X 10.11.4, Python 3.5.1), the mysql-connector-package installed itself (by default) into Python 2.7 that was also on my system. I copied the mysql package directory from:
/Library/Python/2.7/site-packages/mysql to /Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/mysql. Everything works. According to http://dev.mysql.com/doc/connector-python/en/connector-python-versions.html the connector package supports Python 3.3+.
Your specific installation path for the module may be different, but you can easily check this from the REPL using the sys.path:
https://leemendelowitz.github.io/blog/how-does-python-find-packages.html
As we need to be connecting MySQl with Python, the Python command assumes that the connector is enabled. So we need to follow the steps below:
open MySQL Installer;
go to "Custom settings";
go to "Connectors";
choose the connector\Python and version based on the one you are using;
add it;
use import mysql.connector.
It should run, in my case it did!
From Can't run MySql Utilities:
MYSQL Utilities assumes that the MySQL Connector for Python has been installed. If you install it (http://dev.mysql.com/downloads/connector/python/), MySQL Utilities should run OK.
I think this link may help you to solve your problem.
Related
I'm trying to connect to a mySQL database through SQLAlchemy and I can't get it to work for the life of me. Here's the code I'm running and the error I'm getting.
import pandas as pd
import sqlalchemy as sql
import urllib.parse
user = 'user'
pswd = urllib.parse.quote_plus('password')
connect_string = 'mysql://{}:{}#localhost:8018/test'.format(user, pswd)
sql_engine = sql.create_engine(connect_string)
>>> ModuleNotFoundError: No module named 'MySQLdb'
After seeing this, I've tried numerous different ways of installing 'MySQLdb' ( including the obvious 'pip3 install mysqlclient') and when I run that in my terminal, I get the following.
>>> ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.
I know this question has been posted here before but I've spent 2 hours now trying to figure this out with the advice on those other questions and nothing is working. Can anyone help? Below is a picture of the full error I'm getting when I try and install "mysqlclient"
According to
https://pypi.org/project/mysqlclient/#files
mysqlclient only offers pre-compiled wheel files for Windows machines running 64-bit Python 3.6, 3.7, and 3.8. All other configurations require that it be installed from source, and that can be ... complicated.
You may want to try installing PyMySQL instead, and use a connection URI of the form
mysql+pymysql://<username>:<password>#<host>/<dbname>[?<options>]
SQLAlchemy is a high-level ORM. To connect to backends it needs Python DB API driver(s). You can install SQLAlchemy with a MySQL driver using
pip install -U 'SQLAlchemy[mysql]'
See the list of extra drivers available for such installation.
Most drivers have parts written in C/C++ and thus require compilation. You need to install MySQL-related libraries to compile mysqlclient. See https://stackoverflow.com/search?q=%5Bpip%5D+install+%5Bmysql%5D+%22mysql_config%22+not+found
There are a few pure-Python drivers. They're easier to install. PyMySQL is one such driver. To install it along with SQLAlchemy:
pip install -U 'SQLAlchemy[pymysql]'
I needed access a MySQL database via Jupyter Notebook, on which I run Python 3.6 (Anaconda install). It's a linear workflow, extracting data from the DB and manipulating it in Python/Pandas. No need for an ORM, a simple connector should do. However, the widely referenced MySQLdb package doesn't work with Python 3.x.
What are the alternatives?
The recommended installation modality for Jupyter on Ubuntu is Anaconda, so the appropriate package manager is conda. Installation via pip/pip3 or apt won't be accessible to the Notebook. conda makes it simple to get at least two good connectors:
pymysql works well and is easy to install:
sudo conda install pymysql
The 'official' connector:
sudo conda install mysql-connector-python
I tried pymysql first and it was fine but then switched to the second option due to the availability of extensive documentation.
If your objective is to import the data into a Pandas dataframe then use of the built-in pd.sql_read_table or pd.sql_read_query is convenient, as it labels the columns etc. It still requires installation of a connector, as discussed above.
An example with MySQL-connector-python, where you need to enter the database DETAILS:
import pandas as pd
import sqlalchemy
engine = sqlalchemy.create_engine('mysql+mysqlconnector://USER:PASSWORD#HOST/DB_NAME')
example_df = pd.read_sql_table("YOUR_TABLE_NAME", engine)
I've always used Xampp for db/ server purposes. I'm trying to use the same with my Python project but cannot seem to get it to work.
Error from Python Shell
import MySQLdb
ImportError: No module named 'MySQLdb'
I've been all around but nothing seems to work. I'm on windows 7, Python 3.3.
Please someone advise. Links that would resolve this quick will be greatly appreciated.
Update:
Please note that it seems MySQL-python does not support python3
From this discussion : https://groups.google.com/forum/#!topic/django-developers/8r_RVmUe5ys
Here is some connectors that can be used for mysql in Python 3.x:
https://github.com/davispuh/MySQL-for-Python-3 / https://github.com/clelland/MySQL-for-Python-3
http://www.pymysql.org/
https://github.com/farcepest/moist
https://pypi.python.org/pypi/mysql-connector-python/1.0.9
pip install MySQL-python
Run this in your Windows console or Linux terminal, and this problem should disappear.
This question concerns: django 1.5.1 with python 3.3 and mysql 5.6.12
Wanting to get Mysql running with Django. Had everything configured, even Database exists with user-pemissions. Got some error when trying syncdb:
ImportError: No module named 'MySQLdb'
There is obviously the Mysql-Lib for python missing. Downloaded the master-edition from petehunt/PyMySQL. Tried "python setup.py install" . Says:
ImportError: No module named 'constants'
Downloaded another version. A tarball from here. Run "python setup.py install". Seems to work, tried to run the syncdb command "python manage.py syncdb". Still:
ImportError: No module named 'MySQLdb'
Any suggestions what to do now? Thanks in advance.
mysqlclient is the recommended mysql driver for python 3
You can install it via pip:
pip install mysqlclient
Well I solve it. Downgraded to 2.7.x , so that i could use this. Seems to me there should exist a big red warning for using django with python 3.x and Windows 7.
Currently:
SQLAlchemy installed and working (or at least import v0.8.0b2)
Mysql (v5.5.16)
Distribute (0.6.34)
Oracle mysql-python connector
Python 3.2
Windows 7 32/64 (note that I installed Python 32bits)
The problem is that MySQLdb or Oursql is required and I didn't managed to get any of them working.
Found this but didn't manage to get it working neither.
Edit: If you are aware of an other orm that works with Python3, I'm interested.
I was successful in getting Oracle's MySQL connector for python working with SQLAlchemy on Python 3.3. Your connection string needs to start with "mysql+mysqlconnector://...". After I changed my connection string everything (well, simple things) started working.
The MySQL connector docs can be found here: https://dev.mysql.com/doc/connector-python/en/
The package is up on PyPi: https://pypi.org/project/mysql-connector-python/
Here are the SQLAlchemy docs about using the Python connector: http://docs.sqlalchemy.org/en/latest/dialects/mysql.html#module-sqlalchemy.dialects.mysql.mysqlconnector
For others who arrive here, this should do it:
pip install mysql-connector==2.1.4 # version avoids Protobuf error
URI = 'mysql+mysqlconnector://$USER:$PASS#$HOST/$DB'
I tried Oracle's connection, as suggested by #Brad Campbell, but unfortunately it was extremely slow, much slower than the "real" MySQL-Python connection I had been using with SQLAlchemy on Python 2.
After checking SQLAlchemy themselves,
http://docs.sqlalchemy.org/en/latest/dialects/mysql.html#module-sqlalchemy.dialects.mysql.mysqldb
To use MySQL-Python on Python 3, they recommend a fork of it, mysqlclient,
https://github.com/PyMySQL/mysqlclient-python
It is available via pip with pip install mysqlclient, but there are almost certainly other steps you'll need to do to set it up initially. After that though, I was seeing the performance go back to what I was used to, which was about 5x faster than with Oracle's connector.
I've gotten oursql + SQLAlchemy 0.8.1 + Python 3.3 to work. Building off of LukeCarrier's port, I modified oursql.c to use the correct import levels, and it worked! Try this, and be sure to follow the readme:
https://github.com/clintron/py3k-oursql
You may also need to have the latest version of Cython.