I have some problems with python 3 module installing. I'm trying to install mysql using pip :
pip install mysqlclient
for python 2.7 and here is the error I get:
error: command 'C:\Users\RAVI TEJA\AppData\Local\Programs\Common\Microsoft\Visual C++ for Python\9.0\VC\Bin\cl.exe' failed with exit status 2
My specs : Windows 10 x64
Python 2.7
Related
When connecting my Django project to a database hosted on a remote VM, when I run python3 manage.py run server I get the error
django.core.exceptions.ImproperlyConfigured: Error loading MySQLdb module.
Did you install mysqlclient?
when I try python3 -m pip install mysqlclient to resolve the dependency, I get the error
ERROR: Could not find a version that satisfies the requirement mysqlclient (from versions: 1.3.0, 1.3.1, 1.3.2, 1.3.3, 1.3.4, 1.3.5, 1.3.6, 1.3.7, 1.3.8, 1.3.9, 1.3.10, 1.3.11rc1, 1.3.11, 1.3.12, 1.3.13, 1.3.14, 1.4.0rc1, 1.4.0rc2, 1.4.0rc3, 1.4.0, 1.4.1, 1.4.2, 1.4.2.post1, 1.4.3, 1.4.4, 1.4.5, 1.4.6, 2.0.0, 2.0.1, 2.0.2, 2.0.3)
ERROR: No matching distribution found for mysqlclient
I'd like to understand what is causing these issues and how to resolve it.
Thanks in advance!
I got it to work! For anyone facing the same issues run brew install mysql then try python3 manage.py runserver
For what it's worth, you might try installing the mysql-connector-c first. It seems heavy-handed to have to install MySQL to use a driver.
From:
How to install Python MySQLdb module using pip?
Mac OS
brew install mysql-connector-c
if that fails, try
brew install mysql
Am Trying to connect to my mysql db from django app.
I get the below error during migration:
django.core.exceptions.ImproperlyConfigured: Error loading MySQLdb
module. Did you install mysqlclient?
I've already installed mysqlclient as below:
Requirement already satisfied: mysqlclient in
/usr/local/lib/python3.7/site-packages (1.4.2.post1)
I've also tried with pymysql and adding below code to ini.py file:
import pymysql
pymysql.install_as_MySQLdb()
Gives me some other errors.
What could be wrong?
Python 3.7 , mysql 5.7 and Django 2.2 are my setup versions.
I had the same issue. Running the below command fixed it for me.
pip install --force-reinstall --ignore-installed --no-binary :all: mysqlclient
I had the same issue. The thing that worked for me is the following:
https://stackoverflow.com/a/54521244/12497648,
except when I did brew install mysql-client
I got the message Warning: mysql-client 5.7.23_1 is already installed and up-to-date
To reinstall 5.7.23_1, run "brew reinstall mysql-client" so I ran brew reinstall mysql-client after which I continued with the instructions from the link above (export PATH... etc.)
(also don't forget to do the pip wheel mysqlclient / pip install mysqlclient)
If the error includes a Reason: image not found error, then it can be solved with symlinks like this:
Library not loaded: #rpath/libmysqlclient.21.dylib Reason: image not found Django migrate error using mysqlclient DB driver and MySQL 8 with macOS
I have a brand new django 2.2.1 project I have just installed into a python 3.7 virtualenv on OS X (10.14.4). After some frustrations I got mysqlclient to install but when I run the django dev server it doesn't recognise that it is installed:
Here are the steps I've taken so far:
brew install mysql
pipenv --three
pipenv install django==2.2.1
pipenv install mysqlclient
brew uninstall mysql
brew install mysql-connector-c
pipenv install mysqlclient
brew unlink mysql-connector-c
brew install mysql
django-admin startproject projectname
Now, the only change I have made to the out-of-the-box django installation is to change the default database backend to django.db.backends.mysql and when I run the django server I get the following:
django.core.exceptions.ImproperlyConfigured: Error loading MySQLdb module.
Did you install mysqlclient?
However, going back to the virtualenv and doing "pip install mysqlclient" gives:
Requirement already satisfied: mysqlclient in /Users/<username>/.local/share/virtualenvs/<projectname>-KrUE_JNo/lib/python3.7/site-packages (1.4.2.post1)
Any ideas why django can't see the mysqlclient installed in the virtualenv? I can confirm that all of the above has been run in the virtualenv. I suspect it has something to do with the faff that OSX makes you go through to install it but I'm not sure how to pick it apart.
I have also tried to replace mysqldb with pymysql as suggested here but that causes the server to give a different error:
raise ImproperlyConfigured('mysqlclient 1.3.13 or newer is required; you have %s.' % Database.__version__)
django.core.exceptions.ImproperlyConfigured: mysqlclient 1.3.13 or newer is required; you have 0.9.3.
Mysql is a given for this project so use of an alternative backend is not an option. Any help very gratefully received, many thanks in advance.
UPDATE: Output of pip freeze:
Django==2.2.1
django-auth-ldap==1.7.0
Markdown==3.1
mysql-connector-python==8.0.16
mysqlclient==1.4.2.post1
protobuf==3.7.1
pyasn1==0.4.5
pyasn1-modules==0.2.5
PyMySQL==0.9.3
pyodbc==4.0.26
python-ldap==3.2.0
pytz==2019.1
simplejson==3.16.0
six==1.12.0
sqlparse==0.3.0
xmltodict==0.12.0
UPDATE 2:
Following conor's post (thanks conor) I started again with a fresh virtualenv and again successfully installed mysqlclient1.4.2.post1. Here's the output from pip freeze now:
Django==2.2.1
mysqlclient==1.4.2.post1
pytz==2019.1
sqlparse==0.3.0
Still getting the same error when I do python manage.py runserver though:
django.core.exceptions.ImproperlyConfigured: Error loading MySQLdb module.
Did you install mysqlclient?
UPDATE 3:
Thought I would try importing the MySQLdb module on the python command line to see if I can get any more insight and it returns the following:
>>> import MySQLdb
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/Users/<username>/.local/share/virtualenvs/<projectname>-KrUE_JNo/lib/python3.7/site-packages/MySQLdb/__init__.py", line 18, in <module>
from . import _mysql
ImportError: dlopen(/Users/<username>/.local/share/virtualenvs/<projectname>-KrUE_JNo/lib/python3.7/site-packages/MySQLdb/_mysql.cpython-37m-darwin.so, 2): Symbol not found: _mysql_affected_rows
Referenced from: /Users/<username>/.local/share/virtualenvs/<projectname>-KrUE_JNo/lib/python3.7/site-packages/MySQLdb/_mysql.cpython-37m-darwin.so
Expected in: flat namespace
in /Users/<username>/.local/share/virtualenvs/<projectname>-KrUE_JNo/lib/python3.7/site-packages/MySQLdb/_mysql.cpython-37m-darwin.so
SOLVED
So it looks like the issue was that on initial installation the mysqlclient library had compiled against the wrong version of mysql (not sure how that happened), so I had to force it to recompile.
Here are the steps:
brew uninstall mysql
brew uninstall myysql-connector-c
pipenv uninstall mysqlclient
brew install mysql-connector-c
At this point we need to update /usr/local/bin/mysql_config as per the instructions that conor linked to (thanks again conor), i.e. change the line that read
libs="$libs -l "
to
libs="$libs -lmysqlclient -lssl -lcrypto "
Then, to fix the resultant "library not found for -lssl" error I used the answer from this question:
export PATH="/usr/local/opt/openssl/bin:$PATH"
export LDFLAGS="-L/usr/local/opt/openssl/lib"
export CPPFLAGS="-I/usr/local/opt/openssl/include"
Then finally force mysqlclient to recompile and reinstall mysql:
pip install --force-reinstall --ignore-installed --no-binary :all: mysqlclient
brew unlink mysql-connector-c
brew install mysql
Thanks to everyone who took time to help out!
If you're on macos do this
$ brew uninstall mysql
$ brew install mysql-connector-c
$ brew unlink mysql-connector-c
$ brew install mysql
$ pip install mysql-python
and follow the instructions here: https://pypi.org/project/mysqlclient/
Downgrading from python 3.7.4 to python 3.6 solved the issue for me on windows 10.
I am trying to install mysqlclient in OSX 10.7 but I get this compiler error from gcc no matter what I try. I am using Python3.6 to run the setup.py script for mysqlclient.
You need to install XCode. The error message says that you don't have GCC in your mac. It will get installed as part of XCode
In Python 2.X I used MySQLdb module. But recently I've started to port my application to Python 3.X and now indeed this module is no longer working. This is what I tried to do:
$ pip3 install MySQLdb
$ pip3 install PyMySQL
$ pip3 install mysql-connector-python
But none of these commands (taken from different stackoverflow threads) works. So I need some help.
try the following code for installing sql connector for python3
pip install --allow-external mysql-connector-python mysql-connector-python
it worked for me...