The script scans the current directory for polymer elements and then automatically generates a master import file - to save the user time.

poylmer-element-import.py

# README
# How to use:
# This script creates a file called 'element-import.html' which is filled with
# the polymer import statements automatically from the folders in the directory
# from which this script is run.

# Import OS to allow reading of directories
import os

# Gets list of folders within the current directory
list_of_files = next(os.walk('.'))[1]


# Create the file
output_file = open("element-import.html",'w')

# Add Polymer elements to main import file
for element in list_of_files:
    if os.path.isfile(element+"/"+element+".html"):
        output_file.write('<link rel="import" href="' + element +
                                                   '/' + element + '.html">\n')
    else:
        pass

output_file.close()

The script now checks whether the file of the same name exists in the folder before adding it to the import file.