es, there are several libraries available for solving the Traveling Salesman Problem (TSP) using more efficient algorithms such as the Christofides algorithm and Lin-Kernighan algorithm. Here are a few examples:

ortools is a library developed by Google that includes an implementation of the TSP using the Christofides algorithm. It can be installed via pip by running pip install ortools.

concorde is a library that provides an implementation of the TSP using the Concorde algorithm, which is based on the Lin-Kernighan algorithm. It can be installed via pip by running pip install concorde-py.

tsp is a python library that provides multiple algorithm like Nearest Neighbour, Christofides, MSTApprox, LKH to solve the TSP problem and can be installed via pip by running pip install tsp.

Please note that before installing these libraries you need to check if the library is compatible with your Python version and operating system.

Also, it is worth noting that some of these libraries are not actively maintained and may have compatibility issues with the latest version of Python or may not be easy to install.
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