strms.py

#!/C:/Python27/python.exe
##from pymol import cmd, stored
import itertools as it

str1=['2cbd','1bcd','1bv3','2cbc','2hnc']
##str2=['2cba','2cbb','2ax2','3gz0','2ili']


# Finding combinations of each item within str1 and str2
str1com = list(it.combinations(str1, 2))
##str2com= list(it.combinations(str2, 2))


# Finding combinations of each two items from str1 and str2
##allcom = list(it.product(str1, str2))

# Finding RMS value of each structure combination

for combination in str1com: # first, second, third
    print combination[0]
    print combination[1]
    ##cmd.fit(combination[1] + "and name ca"+"," + combination[1]+ "and name ca")