Checks for blank lines in the users and subs files. Adds requirements.txt for dependencies

README.md

@@ -35,6 +35,9 @@ Make sure to have installed these libraries before executing the program.
 * [Urllib](https://docs.python.org/3.0/library/urllib.request.html)
 * Blake3
 
+These can be installed with the command
+```python -m pip install -r requirements.txt```
+
 ## First time running
 
 ### Run it once

Reddit_image_scraper.py

@@ -478,7 +478,7 @@ def read_img_links(submissions, url_list, user_submissions):
     redditors_file = open('./users.txt', 'r')
 
     for redditor in redditors_file.readlines():
-        if '#' in redditor:
+        if '#' in redditor or not redditor.strip():
             continue
         redditor = redditor.strip('\n').lower()
         log('Starting Retrieval from: ' + redditor)
@@ -511,7 +511,7 @@ def read_img_links(submissions, url_list, user_submissions):
         delete_duplicates_by_hash('./users/{}'.format(redditor))
 
     for subreddit in subs_file.readlines():
-        if '#' in subreddit:
+        if '#' in subreddit or not subreddit.strip():
             continue
         subreddit = subreddit.strip('\n').lower()
         log('Starting Retrieval from: /r/' + subreddit)

requirements.txt

@@ -0,0 +1,2 @@
+praw>=7.7.0
+blake3>=0.3.3