style: always use `x is not None` instead of `not x is None`
Differential Revision: https://phab.mercurial-scm.org/D842
--- a/mercurial/keepalive.py Sun Apr 24 18:41:23 2016 +0900
+++ b/mercurial/keepalive.py Fri Sep 29 15:49:43 2017 +0000
@@ -393,7 +393,7 @@
def read(self, amt=None):
# the _rbuf test is only in this first if for speed. It's not
# logically necessary
- if self._rbuf and not amt is None:
+ if self._rbuf and amt is not None:
L = len(self._rbuf)
if amt > L:
amt -= L
--- a/mercurial/pure/parsers.py Sun Apr 24 18:41:23 2016 +0900
+++ b/mercurial/pure/parsers.py Fri Sep 29 15:49:43 2017 +0000
@@ -80,7 +80,7 @@
return i * indexsize
def __delitem__(self, i):
- if not isinstance(i, slice) or not i.stop == -1 or not i.step is None:
+ if not isinstance(i, slice) or not i.stop == -1 or i.step is not None:
raise ValueError("deleting slices only supports a:-1 with step 1")
i = self._fix_index(i.start)
if i < self._lgt:
@@ -114,7 +114,7 @@
return count
def __delitem__(self, i):
- if not isinstance(i, slice) or not i.stop == -1 or not i.step is None:
+ if not isinstance(i, slice) or not i.stop == -1 or i.step is not None:
raise ValueError("deleting slices only supports a:-1 with step 1")
i = self._fix_index(i.start)
if i < self._lgt: