Author counter - analysis of bibtex files

author_c.py

from __future__ import division
import bibtexparser
from bibtexparser.bparser import BibTexParser
from bibtexparser.customization import homogeneize_latex_encoding

alist=[]
with open('bibfile.bib') as bibtex_file:
    parser = BibTexParser()
    parser.customization = homogeneize_latex_encoding
    bib_database = bibtexparser.load(bibtex_file, parser=parser)
    for entry in bib_database.entries:
        alist.append(entry["author"].replace('\n', ' '))

nn = len(alist) # number of papers
print "Number of papers: " + str(nn)

# find separate names
all = " and ".join(alist)
names = all.split(" and ")

# sorted list of all authors
# for n in sorted(names):
#     print n

print "Number of authors: " + str(len(names))
total_number_of_a = len(names)
print "Average number of authors per paper: " + str(total_number_of_a/nn)

## unique names
fin_names = set(names)
fin_names = list(fin_names)

# List of unique names
#for name in sorted(fin_names):
#    print name.encode("utf-8")
print "Number of unique authors in total: "+ str(len(fin_names))