I am trying to install all requirements of a project so i run the command
pip install -r requirements.txt
but it gives the error
Downloading/unpacking psycopg2==2.6 (from -r requirements.txt (line 58))
Downloading psycopg2-2.6.tar.gz (367kB): 367kB downloaded
Running setup.py (path:/tmp/pip_build_root/psycopg2/setup.py) egg_info for package psycopg2
Error: b'You need to install postgresql-server-dev-X.Y for building a server-side extension or libpq-dev for building a client-side application.\n'
Complete output from command python setup.py egg_info:
running egg_info
creating pip-egg-info/psycopg2.egg-info
writing top-level names to pip-egg-info/psycopg2.egg-info/top_level.txt
writing pip-egg-info/psycopg2.egg-info/PKG-INFO
writing dependency_links to pip-egg-info/psycopg2.egg-info/dependency_links.txt
writing manifest file 'pip-egg-info/psycopg2.egg-info/SOURCES.txt'
warning: manifest_maker: standard file '-c' not found
Error: b'You need to install postgresql-server-dev-X.Y for building a server-side extension or libpq-dev for building a client-side application.\n'
----------------------------------------
Cleaning up...
Command python setup.py egg_info failed with error code 1 in /tmp/pip_build_root/psycopg2
Storing debug log for failure in /home/admin/.pip/pip.log
now i knew that i have to install postgresql-server so i used following command
sudo apt-get install postgresql
all good till now and then i ran
sudo apt-get install python-psycopg2
and then i ran my command to install requirements again but got the same error and then i searched on google and tried
sudo apt-get install libpq-dev
but i got following error
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
libpq-dev : Depends: krb5-multidev but it is not going to be installed
Depends: comerr-dev but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
now i am unable to detect and correct broken package...please help me...
I ran the following commands to repair broken package and then i successfully installed Psycopg2 and Postgresql ...
sudo apt-get update
sudo apt-get install python-dev
sudo apt-get install libpq-dev
sudo apt-get install krb5-multidev
sudo apt-get install libssl1.0.0=1.0.1f-1ubuntu2 ibcomerr2=1.42.9-3ubuntu1
sudo apt-get install libssl1.0.0=1.0.1f-1ubuntu2
sudo apt-get install ibcomerr2=1.42.9-3ubuntu1
sudo apt-get update
sudo apt-get install libpq-dev
apt-get install libssl-dev krb5-multidev comerr-dev
sudo apt-get install libssl-dev krb5-multidev comerr-dev
sudo apt-get dist-upgrade
sudo apt-get update
sudo apt-get install libssl-dev krb5-multidev comerr-dev
sudo apt-get install libcomerr2
sudo apt-get install comerr-dev
sudo apt-get install libcomerr2
sudo apt-get install comerr-dev
sudo apt-get install comerr-dev
sudo apt-get install 1.42.9-3ubuntu1.3
sudo apt-get install ibcomerr2=1.42.9-3ubuntu1
sudo apt-get install git
git clone https://github.com/kos0/addRemoveDistribution.git
cd addRemoveDistribution
sudo ./enableDisableDistribution.pl enable security
sudo ./enableDisableDistribution.pl enable updates
sudo apt-get update
sudo apt-get install libpq-dev
sudo apt-get update
pip install -r requirements.txt