def author_count(obj):
if isinstance(obj, list):
author_map = {}
for filename in obj:
authors = PdfFileReader(open(filename, 'rb')).getDocumentInfo().author
author_list = authors.split(", ")
# print author_list
for author in author_list:
if author in author_map:
author_map[author] += 1
else:
author_map[author] = 1
print "author\tcount:"
for author in author_map:
print author.encode("utf-8") + '\t'.encode("utf-8") + str(author_map[author]).encode("utf-8")
def keyword_count(obj):
if isinstance(obj, list):
keyword_map = {}
not_found = 0
for filename in obj:
keywords = PdfFileReader(open(filename, 'rb')).getDocumentInfo().getText("/Keywords")
if keywords is None:
not_found += 1
continue
keyword_list = keywords.split(", ")
keyword_list = [keyword.lower() for keyword in keyword_list]
# print author_list
for keyword in keyword_list:
if keyword in keyword_map:
keyword_map[keyword] += 1
else:
keyword_map[keyword] = 1
print "not found keywords", not_found
print "keyword\tcount:"
for keyword in keyword_map:
print keyword.encode("utf-8") + '\t'.encode("utf-8") + str(keyword_map[keyword]).encode("utf-8")
