diff --git a/stats_pull_requests.py b/stats_pull_requests.py
index c904af2..9bdcd82 100644
--- a/stats_pull_requests.py
+++ b/stats_pull_requests.py
@@ -3,6 +3,7 @@ from datetime import datetime
 import pandas as pd
 from tqdm import tqdm
 from github import Github
+from utils import has_only_1_round_of_comments, has_only_1_comment
 
 tqdm.pandas()
 
@@ -22,89 +23,6 @@ def move_github_logging_to_file():
     github_logger.addHandler(file_handler)
     github_logger.propagate = False  # Prevent logging to standard output
 
-def parse_date(date: str) -> datetime:
-    return datetime.strptime(date, "%Y-%m-%dT%H:%M:%SZ")
-
-def has_only_1_round_of_comments(commits, comments):
-    if not comments or not commits:
-        return False
-    
-    commit_dates = []
-    for commit in commits:
-        if isinstance(commit.commit.author.date, str):
-            commit_dates.append(parse_date(commit.commit.author.date))
-        elif isinstance(commit.commit.author.date, datetime):
-            commit_dates.append(commit.commit.author.date)
-        else:
-            logging.warning(f"The commit {commit.sha} has an unexpected date format: {commit.commit.author.date}")
-            logging.warning(f"Tied to PR: {comments[0]['pull_request_url']}")
-            return False
-
-    comment_dates = []
-    for comment in comments:
-        if isinstance(comment.created_at, str):
-            comment_dates.append(parse_date(comment.created_at))
-        elif isinstance(comment.created_at, datetime):
-            comment_dates.append(comment.created_at)
-        else:
-            logging.warning(f"The comment {comment['id']} has an unexpected date format: {comment['created_at']}")
-            logging.warning(f"Tied to PR: {comment['pull_request_url']}")
-            return False
-    
-    commit_dates.sort()
-    comment_dates.sort()
-    
-    first_comment_time = comment_dates[0]
-    last_comment_time = comment_dates[-1]
-    
-    n_before = n_after = 0
-    for commit_time in tqdm(commit_dates, desc="Checking for 1 round of comments", leave=False):
-        if commit_time < first_comment_time:
-            n_before += 1
-            continue
-        if commit_time > last_comment_time:
-            n_after += 1
-            continue
-
-        if first_comment_time < commit_time < last_comment_time:
-            return False
-    
-    return n_before >= 1 and n_after >= 1
-
-def has_only_1_comment(commits, comments):
-    if not comments or not commits:
-        return False
-
-    commit_dates = []
-    for commit in commits:
-        if isinstance(commit.commit.author.date, str):
-            commit_dates.append(parse_date(commit.commit.author.date))
-        elif isinstance(commit.commit.author.date, datetime):
-            commit_dates.append(commit.commit.author.date)
-        else:
-            logging.warning(f"The commit {commit.sha} has an unexpected date format: {commit.commit.author.date}")
-            logging.warning(f"Tied to PR: {comments[0]['pull_request_url']}")
-            return False
-    commit_dates.sort()
-
-    if isinstance(comments[0].created_at, datetime):
-        comment_date = comments[0].created_at
-    elif isinstance(comments[0].created_at, str):
-        comment_date = parse_date(comments[0].created_at)
-    else:
-        logging.warning(f"The comment {comments[0]['id']} has an unexpected date format: {comments[0]['created_at']}")
-        return False
-
-    n_before = n_after = 0
-    for commit_date in tqdm(commit_dates, desc="Checking for 1 comment", leave=False):
-        if commit_date < comment_date:
-            n_before += 1
-            continue
-        if commit_date > comment_date:
-            n_after += 1
-            continue
-    return n_before >= 1 and n_after >= 1
-
 def process_pull(repo, pull):
     commits = list(pull.get_commits())
     comments = list(pull.get_review_comments())
diff --git a/utils.py b/utils.py
new file mode 100644
index 0000000..3d22f21
--- /dev/null
+++ b/utils.py
@@ -0,0 +1,85 @@
+from datetime import datetime
+import logging
+
+def parse_date(date: str) -> datetime:
+    return datetime.strptime(date, "%Y-%m-%dT%H:%M:%SZ")
+
+def has_only_1_round_of_comments(commits, comments):
+    if not comments or not commits:
+        return False
+    
+    commit_dates = []
+    for commit in commits:
+        if isinstance(commit.commit.author.date, str):
+            commit_dates.append(parse_date(commit.commit.author.date))
+        elif isinstance(commit.commit.author.date, datetime):
+            commit_dates.append(commit.commit.author.date)
+        else:
+            logging.warning(f"The commit {commit.sha} has an unexpected date format: {commit.commit.author.date}")
+            logging.warning(f"Tied to PR: {comments[0]['pull_request_url']}")
+            return False
+
+    comment_dates = []
+    for comment in comments:
+        if isinstance(comment.created_at, str):
+            comment_dates.append(parse_date(comment.created_at))
+        elif isinstance(comment.created_at, datetime):
+            comment_dates.append(comment.created_at)
+        else:
+            logging.warning(f"The comment {comment['id']} has an unexpected date format: {comment['created_at']}")
+            logging.warning(f"Tied to PR: {comment['pull_request_url']}")
+            return False
+    
+    commit_dates.sort()
+    comment_dates.sort()
+    
+    first_comment_time = comment_dates[0]
+    last_comment_time = comment_dates[-1]
+    
+    n_before = n_after = 0
+    for commit_time in tqdm(commit_dates, desc="Checking for 1 round of comments", leave=False):
+        if commit_time < first_comment_time:
+            n_before += 1
+            continue
+        if commit_time > last_comment_time:
+            n_after += 1
+            continue
+
+        if first_comment_time < commit_time < last_comment_time:
+            return False
+    
+    return n_before >= 1 and n_after >= 1
+
+def has_only_1_comment(commits, comments):
+    if not comments or not commits:
+        return False
+
+    commit_dates = []
+    for commit in commits:
+        if isinstance(commit.commit.author.date, str):
+            commit_dates.append(parse_date(commit.commit.author.date))
+        elif isinstance(commit.commit.author.date, datetime):
+            commit_dates.append(commit.commit.author.date)
+        else:
+            logging.warning(f"The commit {commit.sha} has an unexpected date format: {commit.commit.author.date}")
+            logging.warning(f"Tied to PR: {comments[0]['pull_request_url']}")
+            return False
+    commit_dates.sort()
+
+    if isinstance(comments[0].created_at, datetime):
+        comment_date = comments[0].created_at
+    elif isinstance(comments[0].created_at, str):
+        comment_date = parse_date(comments[0].created_at)
+    else:
+        logging.warning(f"The comment {comments[0]['id']} has an unexpected date format: {comments[0]['created_at']}")
+        return False
+
+    n_before = n_after = 0
+    for commit_date in tqdm(commit_dates, desc="Checking for 1 comment", leave=False):
+        if commit_date < comment_date:
+            n_before += 1
+            continue
+        if commit_date > comment_date:
+            n_after += 1
+            continue
+    return n_before >= 1 and n_after >= 1