Style fixes by Black

Author: tanghaibao

src/jcvi/formats/blast.py

@@ -8,7 +8,15 @@
 import os.path as op
 import sys
 
-from ..apps.base import ActionDispatcher, OptionParser, get_abs_path, logger, need_update, popen, sh
+from ..apps.base import (
+    ActionDispatcher,
+    OptionParser,
+    get_abs_path,
+    logger,
+    need_update,
+    popen,
+    sh,
+)
 from ..assembly.base import calculate_A50
 from ..compara.base import AnchorFile
 from ..utils.cbook import percentage

src/jcvi/formats/maf.py

@@ -26,6 +26,7 @@ def blastz_score_to_ncbi_expectation(bz_score):
     log_prob = -bits * 0.693147181
     return 3.0e9 * exp(log_prob)
 
+
 FLANK = 60