comparison python/score_parser.py @ 2264:556b79c72eee

Change folder name 'scripts' to 'python'
author Brecht De Man <b.deman@qmul.ac.uk>
date Wed, 20 Apr 2016 16:33:22 +0200
parents
children 4843377d9976
comparison
equal deleted inserted replaced
2262:5bf0555905de 2264:556b79c72eee
1 #!/usr/bin/python
2
3 import xml.etree.ElementTree as ET
4 import os
5 import sys
6 import csv
7
8 # COMMAND LINE ARGUMENTS
9
10 assert len(sys.argv)<3, "score_parser takes at most 1 command line argument\n"+\
11 "Use: python score_parser.py [rating_folder_location]"
12
13 # XML results files location
14 if len(sys.argv) == 1:
15 folder_name = "../saves" # Looks in 'saves/' folder from 'scripts/' folder
16 print "Use: python score_parser.py [rating_folder_location]"
17 print "Using default path: " + folder_name
18 elif len(sys.argv) == 2:
19 folder_name = sys.argv[1] # First command line argument is folder
20
21 # check if folder_name exists
22 if not os.path.exists(folder_name):
23 #the file is not there
24 print "Folder '"+folder_name+"' does not exist."
25 sys.exit() # terminate script execution
26 elif not os.access(os.path.dirname(folder_name), os.W_OK):
27 #the file does exist but write privileges are not given
28 print "No write privileges in folder '"+folder_name+"'."
29
30
31 # CODE
32
33 # remember which files have been opened this time
34 file_history = []
35
36 # get every XML file in folder
37 for file_name in os.listdir(folder_name):
38 if file_name.endswith(".xml"):
39 tree = ET.parse(folder_name + '/' + file_name)
40 root = tree.getroot()
41
42 # get subject ID from XML file
43 subject_id = file_name[:-4] # file name (without extension) as subject ID
44
45 # get list of all pages this subject evaluated
46 for page in root.findall("./page"): # iterate over pages
47 page_name = page.get('ref') # get page reference ID
48
49 if page_name is None: # ignore 'empty' audio_holders
50 print "WARNING: " + file_name + " contains empty audio holder. (score_parser.py)"
51 break
52
53 if page.get('state') != "complete":
54 print "WARNING:" + file_name + " contains incomplete page " +page_name+ ". (score_parser.py)"
55 break;
56
57 file_name = folder_name+'/ratings/'+page_name+'-ratings.csv' # score file name
58
59 # create folder 'ratings' if not yet created
60 if not os.path.exists(folder_name + '/ratings'):
61 os.makedirs(folder_name + '/ratings')
62
63 # header: fragment IDs in 'alphabetical' order
64 # go to fragment column, or create new column if it doesn't exist yet
65
66 # get array of audio elements and number of audio elements
67 audiolist = page.findall("./audioelement")
68 n_fragments = len(audiolist)
69
70 # get alphabetical array of fragment IDs from this subject's XML
71 fragmentnamelist = [] # make empty list
72 for audioelement in audiolist: # iterate over all audioelements
73 fragmentnamelist.append(audioelement.get('ref')) # add to list
74
75
76 # if file exists, get header and add any 'new' fragments not yet in the header
77 if os.path.isfile(file_name):
78 with open(file_name, 'r') as readfile:
79 filereader = csv.reader(readfile, delimiter=',')
80 headerrow = filereader.next()
81
82 # If file hasn't been opened yet this time, remove all rows except header
83 if file_name not in file_history:
84 with open(file_name, 'w') as writefile:
85 filewriter = csv.writer(writefile, delimiter=',')
86 headerrow = sorted(headerrow)
87 filewriter.writerow(headerrow)
88 file_history.append(file_name)
89
90 # Which of the fragments are in fragmentnamelist but not in headerrow?
91 newfragments = list(set(fragmentnamelist)-set(headerrow))
92 newfragments = sorted(newfragments) # new fragments in alphabetical order
93 # If not empty, read file and rewrite adding extra columns
94 if newfragments: # if not empty
95 with open('temp.csv', 'w') as writefile:
96 filewriter = csv.writer(writefile, delimiter=',')
97 filewriter.writerow(headerrow + newfragments) # write new header
98 with open(file_name, 'r') as readfile:
99 filereader = csv.reader(readfile, delimiter=',')
100 filereader.next() # skip header
101 for row in filereader: # rewrite row plus empty cells for every new fragment name
102 filewriter.writerow(row + ['']*len(newfragments))
103 os.rename('temp.csv', file_name) # replace old file with temp file
104 headerrow = headerrow + newfragments
105
106
107 # if file does not exist yet, create file and make header
108 else:
109 headerrow = sorted(fragmentnamelist) # sort alphabetically
110 headerrow.insert(0,'')
111 fragmentnamelist = fragmentnamelist[1:] #HACKY FIX inserting in firstrow also affects fragmentnamelist
112 with open(file_name, 'w') as writefile:
113 filewriter = csv.writer(writefile, delimiter=',')
114 filewriter.writerow(headerrow)
115 file_history.append(file_name)
116
117 # open file to write for this page
118 writefile = open(file_name, 'a')
119 filewriter = csv.writer(writefile, delimiter=',')
120
121 # prepare row to be written for this subject for this page
122 ratingrow = [subject_id]
123
124 # get scores related to fragment [id]
125 for fragmentname in headerrow[1:]: # iterate over fragments in header (skip first empty column)
126 elementvalue = page.find("./audioelement/[@ref='"
127 + fragmentname
128 + "']/value")
129 if hasattr(elementvalue, 'text'): # if rating for this fragment exists
130 ratingrow.append(elementvalue.text) # add to rating row
131 else: # if this subject has not rated this fragment
132 ratingrow.append('') # append empty cell
133
134 # write row: [subject ID, rating fragment ID 1, ..., rating fragment ID M]
135 if any(ratingrow[1:]): # append to file if row non-empty (except subject name)
136 filewriter.writerow(ratingrow)