code clean-up + minor improvements

utils/inspector.py

@@ -5,7 +5,7 @@ import hashlib
 import pandas as pd
 from functools import partial
 
-from utils.settings import CSV_DIR, BB_GRADEBOOKS_DIR, BB_SUBMISSIONS_DIR
+from utils.settings import CSV_DIR, BB_GRADEBOOKS_DIR, BB_SUBMISSIONS_DIR, MIN_FILESIZE_IN_BYTES
 
 
 def load_excluded_filenames(submissions_dir_name: str) -> list[str]:  # helper function for hashing all files
@@ -31,10 +31,13 @@ def get_hashes_in_dir(dir_path: str, excluded_filenames: list = []) -> list:  #
         for filename in files:
             if filename.lower() not in excluded_filenames:  # convert to lowercase for comparison with excluded files & do not hash if in the excluded list
                 filepath = os.path.join(subdir, filename)
-                with open(filepath, 'rb') as f: 
-                    filehash = hashlib.sha256(f.read()).hexdigest()
-                    if filehash != 'e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855':  # do not include hashes of empty files
+                if os.path.getsize(filepath) > MIN_FILESIZE_IN_BYTES:  # file size more than MIN_FILESIZE_IN_BYTES (as set in settings.py)
+                    with open(filepath, 'rb') as f: 
+                        filehash = hashlib.sha256(f.read()).hexdigest()
+                        #if filehash != 'e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855':  # do not include hashes of empty files
                         hash_list.append({ 'filepath': filepath, 'filename': filename, 'sha256 hash': filehash})
+                # else:
+                #     print(f'size: {os.path.getsize(filepath)}B, {filepath}')
     return hash_list
 
 def generate_hashes_gradebook(gradebook_dir_path: str) -> str:  # main function for hashing all files in gradebook

utils/organiser.py

@@ -1,12 +1,47 @@
 import os, shutil, re
-
+from collections import defaultdict
 from utils.extractor import extract_file_to_dir
-from utils.settings import BAD_DIR_NAME, BB_GRADEBOOKS_DIR, IGNORE_DIRS, TRACKED_FILE_EXT
+from utils.settings import BAD_DIR_NAME, MULTIPLE_DIR_NAME, BB_GRADEBOOKS_DIR, IGNORE_DIRS, TRACKED_FILE_EXT
 
 
-def validate_gradebook_dir_name(src_dir: str) -> None:
+def _parse_filename(file_path: str) -> tuple[str, str] | None:
+    """Extract STUDENTNUMBER and DATETIME from the filename."""
+    pattern = r'^(.*?)_(\d+)_attempt_(\d{4}-\d{2}-\d{2}-\d{2}-\d{2}-\d{2})(?:_.*)?(?:\..+)?$'
+    match = re.match(pattern, file_path)
+    if match:
+        return match.group(2), match.group(3)  # STUDENTNUMBER, DATETIME
+    return None, None
+
+def _filter_multiple_attempts(directory: str) -> None:
+    """Keep only the latest attempt for each student and move older attempts to MULTIPLE_DIR_NAME."""
+    submissions = defaultdict(list)
+    
+    multiple_folder = os.path.join(directory, MULTIPLE_DIR_NAME)
+    os.makedirs(multiple_folder, exist_ok=True)
+    
+    # collect all valid files
+    for filename in os.listdir(directory):
+        filepath = os.path.join(directory, filename)
+        if os.path.isfile(filepath):
+            student_number, timestamp = _parse_filename(filename)
+            if student_number and timestamp:
+                submissions[student_number].append((timestamp, filepath))
+    
+    # process submissions
+    for student, files in submissions.items():
+        files.sort(reverse=True, key=lambda x: x[0])  # sort by timestamp (most recent first)
+        latest_timestamp = files[0][0]  # get the most recent timestamp
+        
+        # keep all files from the latest attempt, move older ones
+        for timestamp, filepath in files:
+            if timestamp != latest_timestamp:
+                shutil.move(filepath, os.path.join(multiple_folder, os.path.basename(filepath)))
+
+    print(f"\n[Info] Multiple submission attempts filtering completed.\nOlder submissions moved to folder: {MULTIPLE_DIR_NAME}")
+
+def _validate_gradebook_dir_name(src_dir: str) -> None:
     if not os.path.isdir(src_dir):  # check if it exists and is a directory
-        print(f'\n[Error] Incorrect directory: {src_dir}\n[Info] Make sure the directory exists in "{BB_GRADEBOOKS_DIR}"')
+        print(f'\n[ERROR] Incorrect directory: {src_dir}\n[Info] Make sure the directory exists in "{BB_GRADEBOOKS_DIR}"')
         exit()
     if not os.listdir(src_dir):  # check if there are any files in the directory
         print(f'\n[Info] No files found in this gradebook - nothing to organise')
@@ -15,7 +50,7 @@ def validate_gradebook_dir_name(src_dir: str) -> None:
         print(f'\n[Info] Gradebook has only invalid compressed files in: {os.path.join(src_dir, BAD_DIR_NAME)}\n[Info] Nothing to organise')
         exit()
 
-def get_comment_from_submission_txt(file_path: str) -> tuple[str, str] | None:
+def _get_comment_from_submission_txt(file_path: str) -> tuple[str, str] | None:
     no_comment_regex = f'Comments:\nThere are no student comments for this assignment.'
     no_comment_pattern = re.compile(no_comment_regex)
 
@@ -34,9 +69,36 @@ def get_comment_from_submission_txt(file_path: str) -> tuple[str, str] | None:
                 return comment, name
     return None, None
 
-def get_gradebook_stats(src_dir: str) -> dict[str, int]:
-    all_files = [ os.path.join(src_dir, f) for f in os.listdir(src_dir) if BAD_DIR_NAME not in f ]
-    dirs = [ f for f in all_files if os.path.isdir(f) and BAD_DIR_NAME not in f ]
+def _get_comment_from_submission_txt_BB_ultra(file_path: str) -> tuple[str, str] | None:
+    with open(file_path, encoding='utf-8') as f:
+        file_contents = f.read()
+    
+    match = re.search(r'Submission Field:\s*<br>(.*)', file_contents, re.DOTALL)  # find the section starting with "Submission Field: <br>"
+    if not match:
+        return None, None
+    
+    section = match.group(1)    
+    section = re.sub(r'\s*<p><a href.*?</a>', '', section, flags=re.DOTALL)  # remove the part starting with "<p><a href" and ending with "</a></p>"    
+    paragraphs = re.findall(r'<p>(.*?)</p>', section, re.DOTALL) or None  # extract text inside <p> tags
+    
+    if not paragraphs:
+        return None, None
+        
+    cleaned_text = '\n'.join(p.replace('<br>', '\n') for p in paragraphs)  # replace <br> with new lines within paragraphs
+    
+    if not cleaned_text:
+        return None, None
+    
+    name_regex = f'^Name:\s*.*'
+    name_pattern = re.compile(name_regex)
+    name_match = name_pattern.findall(file_contents)[0]
+    name = name_match.split('Name:')[1].split('(')[0].strip() or ''
+
+    return cleaned_text.strip(), name  # comment, name
+
+def _get_gradebook_stats(src_dir: str) -> dict[str, int]:
+    all_files = [ os.path.join(src_dir, f) for f in os.listdir(src_dir) if BAD_DIR_NAME not in f and MULTIPLE_DIR_NAME not in f ]
+    dirs = [ f for f in all_files if os.path.isdir(f) and BAD_DIR_NAME not in f and MULTIPLE_DIR_NAME not in f ]
     normal_files = [ f for f in all_files if os.path.isfile(f) ]
     
     files_counter = {}
@@ -57,7 +119,7 @@ def get_gradebook_stats(src_dir: str) -> dict[str, int]:
     print(msg, flush=True)
     return files_counter
 
-def organise_file_per_student(src_dir: str, dest_dir: str, file_name: str, student_no: str) -> None:
+def _organise_file_per_student(src_dir: str, dest_dir: str, file_name: str, student_no: str) -> None:
     student_dir = os.path.join(dest_dir, student_no)
     os.makedirs(student_dir, exist_ok=True)  # create student directory if it doesn't exist
     file_path = os.path.join(src_dir, file_name)
@@ -70,7 +132,7 @@ def organise_file_per_student(src_dir: str, dest_dir: str, file_name: str, stude
                 os.remove(file_path)  # delete compressed file after successful extraction
         else:
             if file_path_lowercase.endswith('.txt'):
-                comment, name = get_comment_from_submission_txt(file_path)  # get student comment (if any), and name, from submission txt file
+                comment, name = _get_comment_from_submission_txt_BB_ultra(file_path)  # get student comment (if any), and name, from submission txt file
                 if comment and name:
                     comments_filename = f'{dest_dir}_comments.txt'
                     with open(comments_filename, 'a') as f:
@@ -88,18 +150,19 @@ def organise_gradebook(src_dir: str, dest_dir: str) -> None:
     2) organises all other files in gradebook into directories per student number
     3) checks if there are any comments in submission text files and extracts them into a file
     """
-    validate_gradebook_dir_name(src_dir)  # check if dir exists, and has files in it - exits if not
+    _validate_gradebook_dir_name(src_dir)  # check if dir exists, and has files in it - exits if not
     os.makedirs(dest_dir, exist_ok=True)  # create the destination directory if it doesn't exist
+    _filter_multiple_attempts(src_dir)
     print('\nGetting gradebook stats...', flush=True)
-    files_counter = get_gradebook_stats(src_dir)  # print stats about the files in gradebook and get files_counter dict to use later
+    files_counter = _get_gradebook_stats(src_dir)  # print stats about the files in gradebook and get files_counter dict to use later
     students_numbers: list[str] = []  # list to add and count unique student numbers from all files in gradebook 
     print('\nStart organising... (this may take a while depending on the number -and size- of submissions)\n', flush=True)
 
     for file_name in os.listdir(src_dir):  # iterate through all files in the directory
-        if BAD_DIR_NAME not in file_name:  # ignore dir BAD_DIR_NAME (created after first run if corrupt compressed files found)
+        if BAD_DIR_NAME not in file_name and MULTIPLE_DIR_NAME not in file_name:  # ignore dirs BAD_DIR_NAME (created after first run if corrupt compressed files found) and MULTIPLE_DIR_NAME (dir with older attempts)
             student_no = file_name.split('_attempt_', 1)[0].split('_')[-1]  # get student number from file name !! pattern might need adjusting if file name format from blackboard changes !!
             students_numbers.append(student_no)
-            organise_file_per_student(src_dir, dest_dir, file_name, student_no)
+            _organise_file_per_student(src_dir, dest_dir, file_name, student_no)
     
     ignored_str = ', '.join(IGNORE_DIRS)
     print(f'[Info] Skipped extracting files in dirs with name that includes any of the following strings: {ignored_str}\n', flush=True)
@@ -111,7 +174,7 @@ def organise_gradebook(src_dir: str, dest_dir: str) -> None:
     else:
         print(f'[Info] Comments in file: {dest_dir}_comments.txt\n', flush=True)
     
-    print(f'[Note] Compressed files (.zip, .rar, .7z) are automatically deleted from the gradebook directory after successful extraction\n', flush=True)
+    print(f'[Info] Compressed files (.zip, .rar, .7z) are automatically deleted from the gradebook directory after successful extraction\n', flush=True)
     
 def check_submissions_dir_for_compressed(submissions_dir: str) -> None:
     """checks if any submitted compressed files contain more compressed files inside (they are not recursively extracted)
@@ -128,5 +191,5 @@ def check_submissions_dir_for_compressed(submissions_dir: str) -> None:
     if compressed_files:
         compressed_files_str = '\n'.join(compressed_files)
         print(f'\n[Warning] One or more compressed files found in the extracted and organised submission files ({len(compressed_files)} found in total)')
-        print('\nSee below the organised per student compressed files, and extract them manually if necessary:\n')
+        print('\n[Info] See below the list of compressed files, organised per student, and extract them manually if necessary:\n')
         print(compressed_files_str)

utils/settings.py

@@ -4,7 +4,13 @@ import os
 BB_GRADEBOOKS_DIR = 'BB_gradebooks'  # directory with extracted gradebooks downloaded from Blackboard
 BB_SUBMISSIONS_DIR = 'BB_submissions'  # directory with organised gradebook submissions
 BAD_DIR_NAME = '__BAD__'  # for organise_gradebook.py - directory with corrupt/invalid compressed files
+MULTIPLE_DIR_NAME = '__multiple__'  # for organise_gradebook.py - directory with older attempts / submissions when there is more than one. script organises only the most recent.
+
 CSV_DIR = os.path.join(os.getcwd(), 'csv-inspect')  # for inspect_gradebook.py and inspect_submissions.py - output dir for generated CSV files
 IGNORE_DIRS = [ '__MACOSX', '.git', 'node_modules', 'vendor' ]  # list of dir names to ignore from extracting
 
 TRACKED_FILE_EXT = [ '.zip', '.rar', '.7z', '.txt', '.pde' ]  # add extension in list to track stats for more
+
+
+# inspect
+MIN_FILESIZE_IN_BYTES = 10