fix FileNotFoundError

FileNotFoundError: [Errno 2] No such file or directory: '.doc/1174081514523066368, 2023-11-14 20:20:00+08:00, 2023-11-15 14:59:00+08:00.png'

draw_db.py

@@ -1,4 +1,5 @@
 import math
+import os
 
 import dateutil.tz
 import matplotlib.pyplot as plt
@@ -52,12 +53,16 @@ def draw_lists(title='', date_list=None, **kv_list):
     plt.gcf().autofmt_xdate()
     axs[0].set_title(title)
 
+    tmp_dir = 'tmp'
+    if not os.path.exists(tmp_dir):
+        os.mkdir(tmp_dir)
+
     if DEBUG:
         # plt.show()
-        file_uri = '.doc/' + title + '.png'
+        file_uri = tmp_dir + '/' + title + '.png'
         fig.savefig(file_uri)
     else:
-        file_uri = '.doc/' + title + '.png'
+        file_uri = tmp_dir + '/' + title + '.png'
         fig.savefig(file_uri)
 
     return fig