How to backup python dependencies or modules already installed

i have installed many python modules plugins and libraries in my centos system. Now i don't wan开发者_如何学JAVAt to install each thing again on separate computers.

Is there any way i can make the package like rpm or any other thing so that when i install in in new location all the modules, dependencies also gets installed and everytime i install new thing i can update the install package

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If you have installed the packages with pip (an improved easy_install), you can just do pip freeze > my-reqs.txt to get a list and versions of the installed packages. There is also some option to install using the reqs file, which I can not remember right now.

Pip is meant to companion virtualenv, which can be used to handle per project requirements of dependent packages.

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If you are not using Pip, then you should check what packages you have in your global and/or user site-packages directories.

The solutions below are from:
How do I find the location of my Python site-packages directory?

Global site packages:

python -m site

or more concisely:

python -c "import site; print(site.getsitepackages())"

User site packages:

python -m site --user-site

The latter do not however show the site-packages of the current virtual environment – use distutils.sysconfig.get_python_lib() for that:

python -c "from distutils.sysconfig import get_python_lib;
print get_python_lib()"

Note! You can not just copy over the packages that have C++-extensions or other compiled binaries in them. These have to be reinstalled on other machines.