diff --git a/heatmap.py b/heatmap.py
index deded34..b588336 100644
--- a/heatmap.py
+++ b/heatmap.py
@@ -1,98 +1,99 @@
-from pydoc import cli
-import numpy as np
-import matplotlib.pyplot as plt
-import july
+import datetime
 import logging
-from mastodon import Mastodon
+import matplotlib.pyplot as plt
+import os
 import pytz
 import time
-import os
-import datetime
+
+
+from mastodon import Mastodon
+import july
 
 # logging.basicConfig(filename='/home/captain/dev/log/heatmap.log', level=logging.INFO)
 # logger = logging.getLogger('/home/captain/dev/log/heatmap.log')
 banner_id = 108361439460735817
 
 client = Mastodon(
-  access_token = 'Ug_bUMWCk3RLamOnqYIytmeB0nO6aNfjdmf06mAj2bE',
-  api_base_url = 'https://nofan.xyz'
+    access_token="Ug_bUMWCk3RLamOnqYIytmeB0nO6aNfjdmf06mAj2bE",
+    api_base_url="https://nofan.xyz",
 )
 
-fn = './heatmap.txt'
+fn = "./heatmap.txt"
 # read from file if exists
 date = []
 data = []
 if os.path.exists(fn):
-  with open(fn) as f:
-    data_list = f.read().splitlines()
-    f.close()
-  for data_ in data_list:
-    date_, count = data_.split(' ')
-    date.append(date_)
-    data.append(int(count))
-  me = client.me()
-  tl = client.account_statuses(me.id)
-  zh = pytz.timezone('Asia/Shanghai')
-
-  while tl:
-    print(tl[0].created_at)
-    break_flag = False
-    for status in tl:
-      date_ = status.created_at.astimezone(zh).date().strftime('%Y-%m-%d')
-      yesterday = datetime.datetime.now(pytz.timezone('Asia/Shanghai')).date() - datetime.timedelta(days=1)
-      # break if date is not yesterday
-      if date_ != yesterday.strftime('%Y-%m-%d'):
-        break_flag = True
-        break
-      if date_ not in date:
+    with open(fn) as f:
+        data_list = f.read().splitlines()
+        f.close()
+    for data_ in data_list:
+        date_, count = data_.split(" ")
         date.append(date_)
-        data.append(0)
-      data[date.index(date_)] += 1
-    if break_flag:
-      break
-    time.sleep(1)
-    tl = client.fetch_next(tl)
+        data.append(int(count))
+    me = client.me()
+    tl = client.account_statuses(me.id)
+    zh = pytz.timezone("Asia/Shanghai")
+
+    while tl:
+        print(tl[0].created_at)
+        break_flag = False
+        for status in tl:
+            date_ = status.created_at.astimezone(zh).date().strftime("%Y-%m-%d")
+            yesterday = datetime.datetime.now(
+                pytz.timezone("Asia/Shanghai")
+            ).date() - datetime.timedelta(days=1)
+            # break if date is not yesterday
+            if date_ != yesterday.strftime("%Y-%m-%d"):
+                break_flag = True
+                break
+            if date_ not in date:
+                date.append(date_)
+                data.append(0)
+            data[date.index(date_)] += 1
+        if break_flag:
+            break
+        time.sleep(1)
+        tl = client.fetch_next(tl)
 
 else:
-  # init
-  me = client.me()
-  tl = client.account_statuses(me.id)
-  zh = pytz.timezone('Asia/Shanghai')
+    # init
+    me = client.me()
+    tl = client.account_statuses(me.id)
+    zh = pytz.timezone("Asia/Shanghai")
 
-  while tl:
-    print(tl[0].created_at)
-    for status in tl:
-      date_ = status.created_at.astimezone(zh).date().strftime('%Y-%m-%d')
-      if date_ not in date:
-        date.append(date_)
-        data.append(0)
-      data[date.index(date_)] += 1
-    time.sleep(1)
-    tl = client.fetch_next(tl)
+    while tl:
+        print(tl[0].created_at)
+        for status in tl:
+            date_ = status.created_at.astimezone(zh).date().strftime("%Y-%m-%d")
+            if date_ not in date:
+                date.append(date_)
+                data.append(0)
+            data[date.index(date_)] += 1
+        time.sleep(1)
+        tl = client.fetch_next(tl)
 
 # write to file
-with open(fn, 'w') as f:
-  for i in range(len(date)):
-    f.write(date[i] + ' ' + str(data[i]) + '\n')
-  f.close()
+with open(fn, "w") as f:
+    for i in range(len(date)):
+        f.write(date[i] + " " + str(data[i]) + "\n")
+    f.close()
 
 cleaned_date, cleaned_data = july.utils.preprocess_inputs(date, data)
 july.heatmap(cleaned_date, cleaned_data, cmap="BuGn")
 
-img_path = './heatmap.png'
-plt.savefig(img_path, bbox_inches='tight')
+img_path = "./heatmap.png"
+plt.savefig(img_path, bbox_inches="tight")
 
 # upload image to mastodon
 media = client.media_post(img_path)
 
 headers = {}
-headers['Authorization'] = 'Bearer ' + client.access_token
-params = {
-  'status': '今天浑浑噩噩了吗',
-  'media_ids': [media.id]
-}
+headers["Authorization"] = "Bearer " + client.access_token
+params = {"status": "今天浑浑噩噩了吗", "media_ids": [media.id]}
 kwargs = dict(headers=headers, files={}, timeout=client.request_timeout, json=params)
-url = client.api_base_url + '/api/v1/statuses/%s/' % banner_id
-resp = client.session.request('PUT', url, **kwargs)
+url = client.api_base_url + "/api/v1/statuses/%s/" % banner_id
+resp = client.session.request("PUT", url, **kwargs)
 if resp.status_code == 200:
-  client.session.request('GET', 'https://up.tunpok.com/api/push/qku6CYquGu?msg=OK&ping=')
+    client.session.request(
+        "GET", "https://up.tunpok.com/api/push/qku6CYquGu?msg=OK&ping="
+    )