[Django]-Error trying to install Postgres for python (psycopg2)

For Ubuntu 14.04, from Docker image python:3.4.3-slim this combination worked for me:

sudo apt-get update
sudo apt-get install -y build-essential
sudo apt-get install -y python3.4-dev
sudo apt-get install -y libpq-dev

pip3 install psycopg2

Note build-essential package. It was crucial in my case.

I tried all the solution but only works be

pip install psycopg2-binary

after installing lib you can use import psycopg2 in python file and then further db connection config

In my case (ubuntu 12.04 with python 2.7 and python 3.4 installed)

sudo apt-get install python3-dev 

was not enough. What did the trick was

sudo apt-get install python3.4-dev

On Amazon Linux within a python3 venv I had to do the following:

sudo yum install python3-devel postgresql-devel
pip install psycopg2

Debian:

sudo apt-get install gcc

For the latest Python 3.7 I had to install python3.7-dev:

sudo apt-get install -y python3.7-dev

First of all install python-dev

sudo apt-get install python-dev

And to adecuate use try this:

This is to do with the encoding of your terminal not being set to UTF-8. Here is my terminal:

$ echo $LANG
es_UY.UTF-8
$ python
Python 2.7.3 (default, Apr 20 2012, 22:39:59) 
[GCC 4.6.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> s = '(\xef\xbd\xa1\xef\xbd\xa5\xcf\x89\xef\xbd\xa5\xef\xbd\xa1)\xef\xbe\x89'
>>> s1 = s.decode('utf-8')
>>> print s1
(｡･ω･｡)ﾉ
>>> 

If I unset I got the same error you got:

$ unset LANG
$ python
Python 2.7.3 (default, Apr 20 2012, 22:39:59) 
[GCC 4.6.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> s = '(\xef\xbd\xa1\xef\xbd\xa5\xcf\x89\xef\xbd\xa5\xef\xbd\xa1)\xef\xbe\x89'
>>> s1 = s.decode('utf-8')
>>> print s1
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
UnicodeEncodeError: 'ascii' codec can't encode characters in position 1-5: ordinal not in range(128)
>>> 

I’m using the Ubuntu distribution of Linux and did the following:

Install the latest version of the python3-dev library so C extensions work for python. The first command updates the package list in Ubuntu so the latest version of python3-dev is installed.

sudo apt-get update

sudo apt-get install python3-dev

Then I had to install the the missing development library for PostgreSQL: the "libpq-dev" package.

sudo apt-get install libpq-dev

After that, I was able to finish installing my dependencies.

sudo apt-get install -y build-essential after trying everything
with no success this helped me solve my problem.

In my case, I tried to install psysopg2 version 2.7.3.2 in a virtual environment with python3.8.

The above error occurred.

As it turned out, python3.8 requires psycopg2 version 2.8 or higher.

Remove the current virtual environment and create another one. Install the dependencies first then the rest you’ve been using. This works