Minor syntax fixes

srttools/global_fit.py

@@ -1,6 +1,5 @@
 """Functions to clean images by fitting linear trends to the initial scans."""
 
-
 try:
     import matplotlib.pyplot as plt
     from matplotlib.gridspec import GridSpec

srttools/interactive_filter.py

@@ -1,6 +1,5 @@
 """Interactive operations."""
 
-
 import copy
 import warnings
 import logging

srttools/read_config.py

@@ -1,6 +1,5 @@
 """Read the configuration file."""
 
-
 import os
 import glob
 import warnings

srttools/tests/test_io_and_scan.py

@@ -467,4 +467,4 @@ def test_summary_multiple(self):
             find_summary_file_in_dir(self.testdir)
 
     def teardown_class(cls):
-        shutil.rmtree(cls.testdir)
+        shutil.rmtree(cls.testdir)