I installed psycopg2 on my Ubuntu Natty machine using apt-get. Now, I would like to know its version number. Can someone tell what the method to find version number for such python packages is.
The current psycopg2 implementation supports: Python 2 versions from 2.6 to 2.7. Python 3 versions from 3.2 to 3.6. PostgreSQL server versions from 7.4 to 9.6.
To install this module follow the below steps. If python is not installed in your system, then you can install it running the given command in your command prompt. Step 2: Open the command prompt and run the below command to install psycopg2-binary. If it shows successfully installed then you are good to go.
psycopg2-binary and psycopg2 both give us the same code that we interact with. The difference between the two is in how that code is installed in our computer.
Since you installed it with the package manager, you can get the version from the command line with this command:
dpkg -s psycopg2
Alternatively you can get the version from using pip
, if you have that installed
pip freeze | grep psycopg2
Or just run a python command to tell you:
python -c "import psycopg2; print(psycopg2.__version__)"
λ > pip freeze | grep psycopg2 psycopg2==2.4.4 λ > python -c "import psycopg2; print(psycopg2.__version__)" 2.4.4 (dt dec pq3 ext)
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