I have been searching the web hours on end for several days and I am unable to install psycopg2 library on my Linux machine (CentOS - 2.6.32-431.3.1.el6.x86_64 GNU/Linux).
I know that the problem is that I am missing the libpq header files since I am getting this message after attempting pip install psycopg2: libpq-fe.h: No such file or directory
http://initd.org/psycopg/docs/install.html#install-from-source
Almost all the articles I found pointed me to use apt-get on CentOS but apt-get is not a standard tool on CentOS 6.3 so I've been trying yum install instead.
However, every time I try to use sudo yum install to download something the package is not available. For example:
yum install postgresql-devel
Loaded plugins: fastestmirror, refresh-packagekit, security
Setting up Install Process
Loading mirror speeds from cached hostfile
drivesrvr | 2.2 kB 00:00
No package postgresql-devel available.
Error: Nothing to do
I've tried this for:
yum install postgresql-server
yum install python-devel
service postgresql initdb
service postgresql start
yum install python-psycopg2
Any ideas? Without the the libpq header files I can't install the psycopg2 module that is necessary for my Python program. This is for Python 2.7.12. And PostgreSQL 9.3.13.
I had this exact issue on Fedora 2016.09 box on Amazon. I was able to install postgresql-devel via yum, but that didn't do the trick; the version seemed to be out of date.
I solved it using:
sudo yum install /usr/include/libpq-fe.h
This installs an updated version of postgresql-devel which allows psycopg2 to compile correctly when installing through pip.
Related
I'm pretty new in AWS, I've tried to install PHP on my virtual machine, but it doesn't works, I get the error:
[root#ip-xxx-xxx-xxx-xxx user]# yum install apache2 libapache2-mod-php5 php5 mysql-
server php5-mysql
Loaded plugins: extras_suggestions, langpacks, priorities, update-motd
No package apache2 available.
No package libapache2-mod-php5 available.
No package php5 available.
No package mysql-server available.
No package php5-mysql available.
Error: Nothing to do
I don't know the reason of this, I already tried the comamnd yum update, but it doesn't help, please help me
PHP5 is quite old and is probably not available anymore in the YUM package manager.
Also I think the tutorial you are using is Debian/Ubuntu based.
Apache2 is called httpd24 in yum for instance.
That would look something like this:
sudo yum install -y httpd24 php72 mysql57-server php72-mysqlnd
Or if you are using the Amazon Linux 2 image, then use this command:
sudo amazon-linux-extras install -y lamp-mariadb10.2-php7.2 php7.2
To find out which specific image you are running:
cat /etc/system-release
Please check out the AWS documentation for an up-to-date tutorial on howto deploy your own LAMP-server:
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/install-LAMP.html
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-lamp-amazon-linux-2.html
When I execute make from the quick start instruction for DPDK, I get the following error:
eal_memory.c:56:18: fatal error: numa.h: No such file or directory
The error comes out even when libnuma is installed already:
>sudo yum install numactl-libs.x86_64
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
* elrepo: mirrors.tuna.tsinghua.edu.cn
Package numactl-libs-2.0.9-6.el7_2.x86_64 already installed and latest version
Nothing to do
I'm using CenOS Linux release 7.3.1611 (Core).
How do I fix this problem?
Try to install numactl-devel:
sudo yum install numactl-devel
numa.h is also part of libnuma package.
Please install libnuma package:
CentOS 6.9: yum install libnuma-devel
Ubuntu: apt-get install libnuma-dev
Looks like on CentOS 7 docker container libnuma-devel is not available. In that case try yum install numactl-devel
I'm facing OSError on centos 7.
OSError: decoder jpeg not available
I tried many solutions for this but still facing same. How to solve this?
I have faced this problem with Python/Django in Ubuntu amazon server.
The solution was to recompile Pillow library after installing the following packagers:
libjpeg libjpeg-dev libfreetype6 libfreetype6-dev zlib1g-dev
Probably the package names are different in CentOS, but you can search in yum to get the right names.
That's important to notice that you must uninstall and reinstall Pillow, PIL or any library that depends on these packages.
Rômulo is correct; on CentOS 7, you're going to want to install a few pre-requisites. I also recommend installing EPEL (correct at time of writing):
# EPEL
echo 'Enabling Extra Packages for Enterprise Linux (EPEL) repository...'
yum install http://dl.fedoraproject.org/pub/epel/7/x86_64/Packages/e/epel-release-7-11.noarch.rpm
rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
# Install additional packages
yum install zlib-devel libjpeg-turbo-devel libpng giflib
Then give it a try again.
I am trying to install mod_wsgi to use django with apache2. I am using Ubuntu Linux system. After installing apache and mysql i tried to install libapache2-mod-wsgi as suggested in many tutorials online. Installation went good so next step enable mod-wsgi. I get the following error when I try to enable it
sudo a2enmod mod-wsgi
ERROR: Module mod-wsgi does not exist!
but this:
sudo apt-get install libapache2-mod-wsgi
Reading package List... Done
Creating depencies tree
Reading current state description
libapache2-mod-wsgi is allready final version.
0 updated, 0 installed, 0 remmoved και 0 upgraded.
which probalby means it is allready installed. How can I install it
PS: Am I at the right forum for this question?
It's called mod_wsgi, not mod-wsgi.
use pip
sudo apt-get install python-pip
sudo pip install mod_wsgi
I've just learned how to use virtualenv and I installed Django 1.4.5. I'm assuming that the virtualenv created a clean slate for me to work on so with the Django 1.4.5 installed, I copied all my previous files into the virtualenv environment.
I tried to run the server but I get an error saying "no module named MySQLdb". I think this means that I forgot to install MySQL-python. I tried to install it via
pip install MySQL-python
But I get this error
Downloading/unpacking MySQL-python
Running setup.py egg_info for package MySQL-python
The required version of distribute (>=0.6.28) is not available,
and can't be installed while this script is running. Please
install a more recent version first, using
'easy_install -U distribute'.
(Currently using distribute 0.6.24 (/home/bradford/Development/Django/django_1.4.5/lib/python2.7/site-packages/distribute-0.6.24-py2.7.egg))
Complete output from command python setup.py egg_info:
The required version of distribute (>=0.6.28) is not available,
and can't be installed while this script is running. Please
install a more recent version first, using
'easy_install -U distribute'.
(Currently using distribute 0.6.24 (/home/bradford/Development/Django/django_1.4.5/lib/python2.7/site-packages/distribute-0.6.24-py2.7.egg))
----------------------------------------
Command python setup.py egg_info failed with error code 2 in /home/bradford/Development/Django/django_1.4.5/build/MySQL-python
Not quite sure how to go about fixing this problem =/ any help much appreciated!
I recently had exactly this issue (just not in relation to Django). In my case I am developing on Ubuntu 12.04 using the default pip and distribute versions, which are basically a little out of date for MySQL-python.
Because you are working in an isolated virtualenv, you can safely follow the suggested instruction without affecting your Python installation.
So you can...
workon your_virtualenv #activate your virtualenv, you do use virtualenvwrapper, right?
easy_install -U distribute #update distribute on your virtualenv
pip install MySQL-python #install your package
If for some reason upgrading distribute is not an option, you could try installing an older version of MySQL-python as follows (you'd have to check this version is compatible with your version of Django):
pip install MySQL-python==x.y.z #where x.y.z is the version you want
Spent an hour looking through stackoverflow. Evntually found answer in the other question. This is what saved me:
sudo apt-get install libmysqlclient-dev
mysql_config goes with the package.
When doing in a virtualenv :
pip install MySQL-python
I got
EnvironmentError: mysql_config not found
To install mysql_config, as Artem Fedosov said, first install
sudo apt-get install libmysqlclient-dev
then everything works fine in virtualenv
MySQL driver for Python (mysql-python) needs libmysqlclient-dev. You can get it with:
sudo apt-get update
sudo apt-get install libmysqlclient-dev
If python-dev is not installed, you may have to install it too:
sudo apt-get install python-dev
Now you can install MySQL driver:
pip install mysql-python
Here is a more detailed documentation for MySQL in Django:
http://codex.themedelta.com/how-to-install-django-with-mysql-in-a-virtualenv-on-linux/
I had to do this:
pip install mysql-python
inside the virtualenv
The commands are always run in ubuntu:
easy_install -U distribute
later
sudo apt-get install libmysqlclient-dev
and finally
pip install MySQL-python
The suggested solutions didn't work out for me, because I still got compilation errors after running
`$ sudo apt-get install libmysqlclient-dev`
so I had to run
apt-get install python-dev
Then everything worked fine for me with
apt-get install python-dev
Try this:
Version Python 2.7
MySQL-python package, you should use either MySQL_python‑1.2.5‑cp27‑none‑win32.whl or
MySQL_python‑1.2.5‑cp27‑none‑win_amd64.whl depending on whether you have installed 32-bit or 64-bit Python.
pip install MySQL_python‑1.2.5‑cp27‑none‑win32.whl
if you are using mysqlclient package, then use
mysqlclient‑1.4.6‑cp27‑cp27m‑win32.whl or
mysqlclient‑1.4.6‑cp27‑cp27m‑win_amd64.whl
pip install mysqlclient‑1.4.6‑cp27‑cp27m‑win32.whl
https://www.lfd.uci.edu/~gohlke/pythonlibs/#mysqlclient