无法在 Windows 上安装 psycopg2

Question

I work in a office where the PostgreSQL has been installed on server. On my windows machine, I have pgAdmin III 1.20 installed to access the database. I am trying to install psycopg2 in my windows system. I get this error:

C:\users\Tony> pip install psycopg2
Collecting psycopg2
Using cached psycopg2-2.6.1.tar.gz
Complete output from command python setup.py egg_info:
running egg_info
creating pip-egg-info\psycopg2.egg-info
writing pip-egg-info\psycopg2.egg-info\PKG-INFO
writing top-level names to pip-egg-info\psycopg2.egg-info\top_level.txt
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: pg_config executable not found.

Please add the directory containing pg_config to the PATH
or specify the full executable path with the option:

    python setup.py build_ext --pg-config /path/to/pg_config build ...

or with the pg_config option in 'setup.cfg'.

----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in c:\users\Tony\appdata\local\temp\pip-build-dobxew\psycopg2

I know that pg_config is available in the bin folder of the PostgreSQL. But I cannot access that location in server. Without pg_config file, I am unable to install psycopg2 in my local windows machine. I read somewhere that libpq.dll is required while building psycopg2.So I have added path of libpq.dll present in pgAdmin III 1.20 into my system path.(C:\\Program Files (x86)\\pgAdmin III\\1.20) How to access the PostgreSQL database using Python then?

Answer 1

The following will install prebuilt binaries for windows from this site .

pip install pipwin 
pipwin install psycopg2

Answer 2

对于所有在 2019 年遇到相同问题的人，现在通过 pip 安装它的正确方法是：

pip install psycopg2-binary

Answer 3

使用此页面下载适用于 Windows 的预构建二进制文件。

Answer 4

run this command:

python -m pip install Psycopg2

Note:

Open the commandprompt in the same folder as project

Answer 5

Download psycopg2 version for your python and windows from here win-psycopg

Do NOT double-click the package to run. Instead, use easy_install from either setuptools or distribute .

C:\> easy_install psycopg2-2.6.1.win32-py2.7-pg9.4.4-release.exe