Replace all of your reddit comments with a customized text.

replace_reddit_comments.py

"""""""""""""""
  ABOUT THIS SCRIPT
    - here's an easy way to gain access to your reddit account from the python shell using the praw library.
	-praw is a python library for accessing reddit.
		- https://praw.readthedocs.io/
	- written by /u/b3llydrum
		- https://github.com/bellydrum
"""""""""""""""
"""""""""""""""
  HOW TO USE THIS SCRIPT
    1. create a reddit app from your reddit user account (see help below).
      - Here's a direct link to where you can do this:  https://www.reddit.com/prefs/apps
      
    2. once created, view your app credentials and assign them to the global variables below.
    
    3. read the praw documentation to learn what you can do with this power.
      - https://praw.readthedocs.io/en/latest/code_overview/praw_models.html
  HELP FOR CREATING THE REDDIT APP
  
    when creating an app, specify that it's a script:
      [ ] web app
      [ ] installed app
      [x] script
   and make sure the redirect uri is  http://localhost:8080
  
"""""""""""""""

import praw

# replace these empty strings with the proper values.
CLIENT_ID = ''        # given when app is created
CLIENT_SECRET = ''    # given when app is created
PASSWORD = ''         # your reddit account password
USER_AGENT = ''        # name you gave to your app (eg. 'comment_nuker')
USERNAME = ''         # your reddit account username

comment_counter = 0

# create a single piece of text to replace each of your reddit comments with.
REPLACEMENT_TEXT = """
This comment text has been replaced using [this](https://gist.github.com/bellydrum/cc078e20bb9fe67e681c08a1115406ed) script.
"""
COMMENT_REPLACED_MSG = 'Replaced comment text.'
COMMENT_ALREADY_REPLACED_MSG = 'This comment text has already been replaced.'
REPLACING_COMPLETE_MSG = f'All comments have been replaced! Here is their new text:\n{REPLACEMENT_TEXT}\n'

# create the reddit instance using the above credentials.
reddit = praw.Reddit(
	client_id=CLIENT_ID,
	client_secret=CLIENT_SECRET,
	password=PASSWORD,
	user_agent=USER_AGENT,
	username=USERNAME
)

###		WARNING --
###		this is the part that actually replaces your comment text.
###		there will be double- and triple-checking to ensure all comments are covered.
###		depending on your comment history, this might take a while. grab a coffee!

def replace_comment_text(comment, replacement_text, counter=comment_counter):
	comment.edit(replacement_text)
  
print('\nSorting comments by new...\n')
for comment in reddit.redditor(USERNAME).comments.new(limit=None):
	if comment.body.strip() != REPLACEMENT_TEXT.strip():
		replace_comment_text(comment, REPLACEMENT_TEXT)
		comment_counter += 1
		print('Replaced comment text, making a total of {} comments replaced.'.format(comment_counter))
	else:
		print(COMMENT_ALREADY_REPLACED_MSG)

for time_filter in ['all', 'year', 'month', 'week']:
	print(f'\nNow sorting comments by top/{time_filter}...\n')
	for comment in reddit.redditor(USERNAME).comments.top(time_filter=time_filter):
		if comment.body.strip() != REPLACEMENT_TEXT.strip():
			replace_comment_text(comment, REPLACEMENT_TEXT)
			comment_counter += 1
			print('Replaced comment text, making a total of {} comments replaced.'.format(comment_counter))
		else:
			print(COMMENT_ALREADY_REPLACED_MSG)

print(REPLACING_COMPLETE_MSG)