django.core.exceptions.ImproperlyConfigured: Kesalahan saat memuat modul MySQLdb: Tidak ada modul bernama MySQLdb

96

Masalah yang saya hadapi saat mencoba menyambung ke database untuk mysql. Saya juga memberikan pengaturan database yang telah saya gunakan.

 Traceback (most recent call last):
 File "manage.py", line 10, in <module>
 execute_from_command_line(sys.argv)
 File "/home/ar/Desktop/test/testprac/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 453, in execute_from_command_line
utility.execute()
File "/home/ar/Desktop/test/testprac/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 392, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/home/ar/Desktop/test/testprac/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 272, in fetch_command
klass = load_command_class(app_name, subcommand)
File "/home/ar/Desktop/test/testprac/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 77, in load_command_class
module = import_module('%s.management.commands.%s' % (app_name, name))
File "/home/arundhati/Desktop/test/testprac/local/lib/python2.7/site-packages/django/utils/importlib.py", line 35, in import_module
__import__(name)
File "/home/ar/Desktop/test/testprac/local/lib/python2.7/site-packages/django/core/management/commands/syncdb.py", line 8, in <module>
from django.core.management.sql import custom_sql_for_model, emit_post_sync_signal
File "/home/ar/Desktop/test/testprac/local/lib/python2.7/site-packages/django/core/management/sql.py", line 9, in <module>
from django.db import models
File "/home/ar/Desktop/test/testprac/local/lib/python2.7/site-packages/django/db/__init__.py", line 40, in <module>
backend = load_backend(connection.settings_dict['ENGINE'])
File "/home/ar/Desktop/test/testprac/local/lib/python2.7/site-packages/django/db/__init__.py", line 34, in __getattr__
return getattr(connections[DEFAULT_DB_ALIAS], item)
File "/home/ar/Desktop/test/testprac/local/lib/python2.7/site-packages/django/db/utils.py", line 93, in __getitem__
backend = load_backend(db['ENGINE'])
File "/home/ar/Desktop/test/testprac/local/lib/python2.7/site-packages/django/db/utils.py", line 27, in load_backend
return import_module('.base', backend_name)
File "/home/ar/Desktop/test/testprac/local/lib/python2.7/site-packages/django/utils/importlib.py", line 35, in import_module
__import__(name)
File "/home/ar/Desktop/test/testprac/local/lib/python2.7/site-packages/django/db/backends/mysql/base.py", line 17, in <module>
raise ImproperlyConfigured("Error loading MySQLdb module: %s" % e)
django.core.exceptions.ImproperlyConfigured: Error loading MySQLdb module: No module named MySQLdb

Pengaturan Databse ::

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.mysql', # Add 'postgresql_psycopg2', 'mysql', 'sqlite3' or 'oracle'.
        'NAME': 'ar_test_db',                      # Or path to database file if using 
        # The following settings are not used with sqlite3:
        'USER': '',
        'PASSWORD': '',
        'HOST': '',                      # Empty for localhost through domain sockets or   '127.0.0.1' for localhost through TCP.
        'PORT': '',                      # Set to empty string for default.
    }
}

Thanks a lot for the help !!

getitstarted
sumber

Jawaban:

136

It looks like you don't have the python mysql package installed, try:

pip install mysql-python

or if not using a virtual environment (on *nix hosts):

sudo pip install mysql-python
Ron E
sumber
Are you using a virtual environment? I recommend you do just to keep things organized. If that's not an option then you'll need to run pip with superuser privileges: sudo pip install mysql-python
Ron E
2
I am using virtual env, and i have installed mysql, django... however when i do python manage.py syncdb It gives me the same error that i have posted
getitstarted
do i have a version problem by any chance? I am using django 1.5 , python 2.7.3 with my sql(14.14 for debian)
getitstarted
4
with python 3 is: pip install mysqlclient
sadalsuud
1
This in python3 not works. requires ConfigParser which is not available in python3
gogagubi
40

you have to install python-mysqldb - Python interface to MySQL

Try
sudo apt-get install python-mysqldb

Rashi
sumber
38

If you get errors trying to install mysqlclient with pip, you may lack the mysql dev library. Install it by running:

apt-get install libmysqlclient-dev

and try again to install mysqlclient:

pip install mysqlclient
Psddp
sumber
2
It was pip install mysqlclient. I had forgotten to add this to my requirements.txt file, so even though the MySQL database was there and populated, my Django web server couldn't interact with it.
Blairg23
thanks this answer saved my day i have been trying to make mysql work with django for 2 days :)
rishabhr0y
13

My answer is similar to @Ron-E, but I got a few more errors/corrections so I'm putting my steps below for Mac OSX on Mavericks and Python 2.7.6.

  1. Install Python mysql package (if you get a success message, then ignore the below steps)

    pip install mysql-python
    
  2. When I did the above, I got the error "EnvironmentError: mysql_config not found" enter image description here To fix this, I did the below in terminal:

    export PATH=$PATH:/usr/local/mysql/bin
    
  3. When I reran step 1, I get a new error "error: command 'cc' failed with exit status 1" enter image description here To fix this, I did the below in terminal:

     export CFLAGS=-Qunused-arguments
     export CPPFLAGS=-Qunused-arguments
    
  4. I reran step 1 and got the success message 'Successfully installed mysql-python'!

Will
sumber
Thanks for suggestion. I got first of your problem.
user2772346
I have followed your way but first error is always occurring in my case. And for ` export CFLAGS=-Qunused-arguments ` terminal is giving that error: -bash: export: =-Qunused-arguments': not a valid identifier
RegarBoy
12

When I set up Django development environment for PyCharm in Mac OS X Mountain Lion with python, mysql, sequel pro application I got error same as owner of this thread. However, my answer for them who is running python-mysqldb under Mac OS Mountain Lion x86_x64 (MySql and Python also should be same architecture) and already tried everything like pip and etc. In order fix this problem do following steps:

  1. Download MySql for Python from here
  2. Untar downloaded file. In terminal window do following: tar xvfz downloade.tar.
  3. cd /to untared directory
  4. Run sudo python setup.py install
  5. If you get error something like this: "Environment Error: /usr/local/bin/mysql_config not found" then try to add path ass follows: "export PATH=$PATH:/usr/local/mysql/bin". But id did not helped to me and I found another solution. In the end of command execution error output which looks like this:

    File "/path_to_file/MySQL-python-1.2.4b4/setup_posix.py", line 25, in mysql_config raise EnvironmentError("%s not found" % (mysql_config.path,))

  6. Open setup_posix.py with vim and go to line 25 (In your case it can be different unless if it is same version).

  7. Line 25 should look like this after your editing unless your mysql have symbolic link like follows '/usr/local/mysql/bin/':

    f = popen("%s --%s" % ('/usr/local/mysql/bin/mysql_config', what))

  8. After this I got another error as following:

    django.core.exceptions.ImproperlyConfigured: Error loading MySQLdb module: dlopen(/Library/Python/2.7/site-packages/MySQL_python-1.2.4b4-py2.7-macosx-10.8-intel.egg/_mysql.so, 2): Library not loaded: libmysqlclient.18.dylib Referenced from: /Library/Python/2.7/site-packages/MySQL_python-1.2.4b4-py2.7-macosx-10.8-intel.egg/_mysql.so Reason: image not found

  9. Finally I did following in console:

    sudo ln -s /usr/local/mysql/lib/libmysqlclient.18.dylib /usr/lib/libmysqlclient.18.dylib

Currently everything works fine. So I hope it will be helpful for somebody who uses Mac. :)

Khamidulla
sumber
Thanks a lot. It took me almost a week just to run my first project using mysql haha. Phew...
Avigit
Thanks a ton man! you saved my day! i was using mac and getting same problem.
user2772346
7

You are missing the python mysqldb library. Use this command (for Debian/Ubuntu) to install it: sudo apt-get install python-mysqldb

Haimei
sumber
This is an answer, but I think it would be great if you could add more details than a single line. Thanks!
Uli Köhler
Above command help us to install the Python interface to the MySQL database.
Haimei
7

It is because it did not find sql connector. try:

pip install mysqlclient
Anand Prakash
sumber
5

For Ubuntu 16.04 and 18.04 or python 3 versions

sudo apt-get install python3-mysqldb
Gowthaman D
sumber
5

I've solved this issue in this environment:

$ pyenv --version
pyenv 1.2.9

$ python --version
Python 3.7.2

$ python -m django --version
2.1.7

./settings.py

DATABASES = {
    'default': {
        'NAME': 'my_db_name',
        'ENGINE': 'mysql.connector.django',   # 'django.db.backends.mysql'
        'USER': '<user>',
        'PASSWORD': '<pass>',
        'HOST': 'localhost',
        'PORT': 3306,
        'OPTIONS': {
            'autocommit': True,
        },
    }
}

If you use 'ENGINE': 'mysql.connector.django' , install driver executing:

$ pip install mysql-connector-python
Successfully installed mysql-connector-python-8.0.15 protobuf-3.7.0 six-1.12.0

Note that $ pip install mysql-pythondidn't work for me.

Note that if you use 'ENGINE': 'django.db.backends.mysql' , you should install driver executing:
$ pip install mysqlclient

Finally execute:
$ python manage.py migrate

If it's all right, python creates all these tables id database:

auth_group
auth_group_permissions
auth_permission
auth_user
auth_user_groups
auth_user_user_permissions
django_admin_log
django_content_type
django_migrations
django_session
JavierFuentes
sumber
django.core.exceptions.ImproperlyConfigured: 'django.db.backends.django' isn't an available database backend. Try using 'django.db.backends.XXX', where XXX is one of: 'mysql', 'oracle', 'postgresql', 'sqlite3' I used 'ENGINE': 'mysql.connector.django' with pip3 install mysql-connector-python It still didn't work
mountainLion
4

If you are using pyhton version 3.4 or above. you have to install

sudo apt-get install python3-dev libmysqlclient-dev 

in terminal. then install pip install mysqlclient on your virtual env or where you installed pip.

selvakumar
sumber
3

On Ubuntu it is advised to use the distributions repository.

sudo apt-get install python-mysqldb
Gaurav Agarwal
sumber
2

With the same error message as Will, it worked for me to install mysql first as the missing file will be added during the installation. So after

brew install mysql

pip install mysql-python

ran without errors.

cmdAmir
sumber
Command "/usr/bin/python -u -c "import setuptools, tokenize;__file__='/private/var/folders/yn/nrq74lgs6kqdzcr035p_5g280000gn/T/pip-build-jwQcm5/mysql-python/setup.py';f=getattr(tokenize, 'open', open)(file);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, file, 'exec'))" install --record /var/folders/yn/nrq74lgs6kqdzcr035p_5g280000gn/T/pip-UmTWRJ-record/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /private/var/folders/yn/nrq74lgs6kqdzcr035p_5g280000gn/T/pip-build-jwQcm5/mysql-python/
tisuchi
2

This happened with me as well and I believe this has become a common error not only for Django developers but also for Flask as well, so the way I solved this issue was using brew.

  1. brew install mysql
  2. sudo pip install mysql-python

This way every single issue was solved and both frameworks work absolutely fine.

P.S.: For those who use macports (such as myself), this can be an issue as brew works in a different level, my advice is to use brew instead of macports

I hope I could be helpful.

pykimera
sumber
1

I was having the same problem.The following solved my issue

Run pip install pymysql in your shell

Then, edit the init.py file in your project origin directory(the same as settings.py) and then

add:

import pymysql

pymysql.install_as_MySQLdb()

this should solve the problem.

Vaishnav Raja
sumber
"Then, edit init.py file in your project origin directory" - do you mean __init__.py ?
Alex Yu
1

try:

pip install mysqlclient

I recommend to use it in a virtual environment.

Omid Estaji
sumber
0

Just to add to other answers, if you're using Django, it is advisable that you install mysql-python BEFORE installing Django.

Anoyz
sumber
0

I wasted a lot of time on this. Turns out that the default database library is not supported for Python 3. You have to use a different one.

CoderGuy123
sumber
0

if the error looks like this

django.core.exceptions.ImproperlyConfigured: Error loading MySQLdb module:
dlopen(/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/_mysql.so, 2): Library not loaded: 
/usr/local/opt/mysql/lib/libmysqlclient.20.dylib
Referenced from: /Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/_mysql.so

then try :

pip install python-mysqldb
blueChair
sumber
0

Faced similar issue. I tried installing mysql-python using pip, but it failed due to gcc dependency errors.

The solution that worked for me

conda install mysql-python

Please note that I already had anaconda installed, which didn't had gcc dependency.

Ayush Vatsyayan
sumber
could you elaborate on it
Ayush Vatsyayan
0

I think it is the version error.

try installing this in following order:

  1. sudo apt-get install python3-mysqldb

  2. pip3 install mysqlclient

  3. python3 manage.py makemigrations

  4. python3 manage.py migrate

Suvidh Jain
sumber
-2

Seems like you don't have permission to the Python folder. Try sudo chown -R $USER /Library/Python/2.7

omkar ghule
sumber
-3

Maybe you can try the following mode of operation:
sudo python manage.py runserver 0.0.0.0:8000

yanlong xu
sumber