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authorgescheit <gescheit12@gmail.com>2019-04-30 10:54:30 +0300
committerInada Naoki <songofacandy@gmail.com>2019-04-30 16:54:30 +0900
commit3bbcc92577f8e616bc94c679040043bacd00ebf1 (patch)
treec010916e6f1cb8ca7872b0b325193dcaf7eaef42
parentb0a2c0fa83f9b79616ccf451687096542de1e6f8 (diff)
downloadcpython-git-3bbcc92577f8e616bc94c679040043bacd00ebf1.tar.gz
bpo-25430: improve performance of IPNetwork.__contains__ (GH-1785)
make a compare in bit-operation manner.
-rw-r--r--Lib/ipaddress.py3
-rw-r--r--Misc/NEWS.d/next/Library/2019-04-15-12-22-09.bpo-25430.7_8kqc.rst1
2 files changed, 2 insertions, 2 deletions
diff --git a/Lib/ipaddress.py b/Lib/ipaddress.py
index 909a55de4f..662d737389 100644
--- a/Lib/ipaddress.py
+++ b/Lib/ipaddress.py
@@ -697,8 +697,7 @@ class _BaseNetwork(_IPAddressBase):
# dealing with another address
else:
# address
- return (int(self.network_address) <= int(other._ip) <=
- int(self.broadcast_address))
+ return other._ip & self.netmask._ip == self.network_address._ip
def overlaps(self, other):
"""Tell if self is partly contained in other."""
diff --git a/Misc/NEWS.d/next/Library/2019-04-15-12-22-09.bpo-25430.7_8kqc.rst b/Misc/NEWS.d/next/Library/2019-04-15-12-22-09.bpo-25430.7_8kqc.rst
new file mode 100644
index 0000000000..922bdef56e
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2019-04-15-12-22-09.bpo-25430.7_8kqc.rst
@@ -0,0 +1 @@
+improve performance of ``IPNetwork.__contains__()`` \ No newline at end of file