Released: Apr 6, View statistics for this project via Libraries. Psycopg 2 is mostly implemented in C as a libpq wrapper, resulting in being both efficient and secure. Many Python types are supported out-of-the-box and adapted to matching PostgreSQL data types; adaptation can be extended and customized thanks to a flexible objects adaptation system.

Documentation is included in the doc directory and is available online. For any other resource source code repository, bug tracker, mailing list please check the project homepage.

Building Psycopg requires a few prerequisites a C compiler, some development packages : please check the install and the faq documents in the doc dir or online for the details. If prerequisites are met, you can install psycopg like any other Python package, using pip to download it from PyPI :. You can also obtain a stand-alone package, not requiring a compiler or external libraries, by installing the psycopg2-binary package from PyPI:.

The binary package is a practical choice for development and testing but in production it is advised to use the package built from sources. Apr 6, Oct 20, Jun 13, Apr 14, Apr 4, Jan 22, Nov 11, Nov 9, Jun 17, Feb 8, Jan 29, Download the file for your platform. If you're not sure which to choose, learn more about installing packages. Warning Some features may not work without JavaScript. Please try enabling it if you encounter problems.

Search PyPI Search. Latest version Released: Apr 6, Navigation Project description Release history Download files. Maintainers piro. Psycopg 2 is both Unicode and Python 3 friendly. Documentation Documentation is included in the doc directory and is available online.

PIP INSTALL COMMAND IN PYTHON 3.6

Installation Building Psycopg requires a few prerequisites a C compiler, some development packages : please check the install and the faq documents in the doc dir or online for the details. Release history Release notifications This version.Released: Apr 6, View statistics for this project via Libraries. Psycopg 2 is mostly implemented in C as a libpq wrapper, resulting in being both efficient and secure.

Many Python types are supported out-of-the-box and adapted to matching PostgreSQL data types; adaptation can be extended and customized thanks to a flexible objects adaptation system. Documentation is included in the doc directory and is available online. For any other resource source code repository, bug tracker, mailing list please check the project homepage. Building Psycopg requires a few prerequisites a C compiler, some development packages : please check the install and the faq documents in the doc dir or online for the details.

If prerequisites are met, you can install psycopg like any other Python package, using pip to download it from PyPI :. You can also obtain a stand-alone package, not requiring a compiler or external libraries, by installing the psycopg2-binary package from PyPI:.

The binary package is a practical choice for development and testing but in production it is advised to use the package built from sources. Apr 6, Oct 20, Jun 13, Apr 14, Apr 4, Jan 22, Nov 11, Nov 9, Jun 17, Feb 8, Oct 24, Aug 26, Jul 24, Jul 22, Mar 13, Mar 1, Jul 7, Jun 15, Feb 9, Aug 30, May 13, Jan 7, Jun 23, Apr 7, GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.

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Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Already on GitHub? Sign in to your account. Alpine Linux use musl libc and manylinux wheels don't support it: see e. Not a psycopg problem but a lack of a standard for it, such as PEP defininig manylinux1. Happy to support Alpine as soon as there will be a standard and tools for it.

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I found this solution which worked quite fine. But I think you are pseudo -using the binary package and building from the source at the end.

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Binary packages are not for the reason described above. Thank for the clarification barrachri and dvarrazzo. I just noticed what was actually happening.

All I wanted was to have psycopg2 regardless whether binary or not installed on an alpine based image, hence considering it a solution. Yes, but make sure the apt add and apt del commands are in one layer. Otherwise you won't make the image any smaller. Since this is the top google hit for this problem, use a multi-stage build to minimize the final image size. This is still a bit unclear to me. The point of installing psycopg2-binary is that compilers like gcc etc.

I'm getting the same message as the original poster. When trying to install psycopg2-binaryit complains about not finding gcc and suggests to, well, install psycopg2-binary which is what I'm trying to do. I'm on Centos 7. On alpine that's because of muslc instead of glibc.

I should think this shouldn't happen on CentOS but maybe there's another conflict.GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Already on GitHub? Sign in to your account.

Forgive the blunt question but I cannot find discussion on why the split of psycopg2 and psycopg2-binary is happening. The current 2. The discussion is here. The explanation is here. If you have another solution let us know in the mailing list. The solution should involve not segfaulting. Thanks for the context! This is super helpful. It's tough because I get that this stuff should work out of the box, but at the same time I think the current solution will only work out of the box as far as people won't be using psycopg2-binary.

If you are affected by that particular issue, compiling from source is one of the more appropriate fixes and pip has a command line flag for it which psycopg2 itself documented in various places including this issue tracker. I understand the desire to fix the issue as I said, I'm affected by itbut I don't think this really fixes anything:.

I think the "solution" really is the --no-binary pip flag. Unless I completely misunderstand something, that has the same effect as moving the wheels to a different package, except that for this package the wheels will not have added issues. I fully agree with jleclanche.

Creating of psycopg2-binary is not a solution for end users. On the contrary, it is a new problem for users whom uses many third-party libraries depended from psycopg2. Now one half of this libraries depends from psycopg2 e.

Which version of psycopg2 package will be installed and used in that situation? Imagine, what if near future all python libraries will be depends from psycopg2-binary instead of psycopg2. What will this situation be different from when there was only one version of psycopg2? Cykooz use psycopg2 and forget the wheel for your use.

Let the other decide for theirs.Are you struggling to install psycopg2 for Python on a Windows machine? Hopefully the methods listed below will help!

Sadly, not every installation goes that smoothly, as not all open-source developer has the time to perfect installation for every OS and versions of Python out there. So for anyone else who may struggle with psycopg2 installation, I hope the following will save you some time. Because I was using the Anaconda build of Python, I always give this command line a try rightly or wrong!

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If Continuum, the folks who bring us Anaconda, has the library on their repository, why look anywhere else? Unfortunately, the installation failed and mentioned something about requiring python-dev and libpq-dev. The maker of psycopg2 refers to a Windows port kindly provided by another developer.

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Bingo, exe files. Double click and away I go! Before opening another can of search worms, I noticed that the chap who provided the exe files mentioned yet another developer who has provided pip packages of psycopg2 for Windows.

Voila, installation successful. Time to go back to Spyder 2 to finish my work. Is it time to give up and use a completely different driver?! In the half hour maybe more… I spent investigating this, I remembered skimming through a mention of easy install.

Last ditch effort… I used command prompt to navigate to the folder where the exe from step 2 was saved. Installation was successful but by now I was sceptical if I would ever get this library to play ball.

Well, I guess that what it means. It says: error: Could not find suitable distribution for Requirement.

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install psycopg2

Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I am trying to install psycopg2 under Windows Windows 7, 64 bit. I am using Python 2. I get a message then that. In the next dialogue it does not allow me to choose any python installations.

All other programs and installations find my python happily. You're using a different Python distribution to the one the psycopg2 installer expects, so it cannot find the Python install location.

You can manually install psycopg2 from the binaries you downloaded by following the instructions on the psycopg2 download page for issues installing with Zope, which read:. It has been noted that the the installers for psycopg2 will not find the zope installation of python, stop the installation, and not installing psycopg2. I do not use Zope, so I will not be able to provide support or instructions on how to use it. Let me know if it does not work, though. The same will apply to the Python x,y distribution that you are using.

Unzip the psycopg2 installer. See installing Python modules. Learn more. Psycopg installation on windows Ask Question. Asked 7 years, 5 months ago.PostgreSQL is a powerful open source relational database frequently used to create, read, update and delete Python web application data.

Our walkthrough should work with either Python 2 or 3 although all the steps were tested specifically with Python 3.

Besides the Python interpreter, here are the other components we'll use:.

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If you aren't sure how to install pip and virtualenv, review the first few steps of the how to set up Python 3, Bottle and Green Unicorn on Ubuntu We'll install PostgreSQL via the apt package manager.

There are a few packages we need since we want to both run PostgreSQL and use the psycopg2 driver with our Python programs. PostgreSQL will also be installed as a system service so we can start, stop and reload its configuration when necessary with the service command. Open the terminal and run:. Enter your sudo password when prompted and enter 'yes' when apt asks if you want to install the new packages.

However, we need to create a user and a database instance to really start using it. Use the sudo command to switch to the new "postgres" account. Within the "postgres" account, create a user from the command line with the createuser command.

install psycopg2

PostgreSQL will prompt you with several questions. Answer "n" to superuser and "y" to the other questions. Exit out of the postgres account by pressing the "Ctrl" key along with "d" into the shell. We're back in our own user account. Create a new database we can use for testing.

You can name it "testpython" or whatever you want for your application.

psycopg2 2.8.5

The psql command line client is useful for connecting directly to our PostgreSQL server without any Python code. Try out psql by using this command at the prompt:. A full list of PostgreSQL commands can be found in the psql documentation. Now that PostgreSQL is installed and we have a non-superuser account, we can install the psycopg2 package. Let's figure out where our python3 executable is located, create a virtualenv with python3activate the virtualenv and then install the psycopg2 package with pip.

Find your python3 executable using the which command. Create a new virtualenv in either your home directory or wherever you store your Python virtualenvs.

install psycopg2

Specify the full path to your python3 installation. Next we can install the psycopg2 Python package from PyPI using the pip command. Sweet, we've got our PostgreSQL driver installed in our virtualenv! We can now test out the installation by writing a few lines of Python code.

install psycopg2

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