diff --git a/src/semver/version.py b/src/semver/version.py
index e3b9229..2f1f8cb 100644
--- a/src/semver/version.py
+++ b/src/semver/version.py
@@ -149,17 +149,15 @@ def cmp_prerelease_tag(a, b):
else:
return _cmp(a, b)
- a, b = a or "", b or ""
- a_parts, b_parts = a.split("."), b.split(".")
- re_digits = re.compile(r"^\d+$")
- parts_a = [int(x) if re_digits.match(x) else x for x in a_parts]
- parts_b = [int(x) if re_digits.match(x) else x for x in b_parts]
- for sub_a, sub_b in zip(parts_a, parts_b):
+ a_parts = [int(x) if x.isdigit() else x for x in (a or "").split(".")]
+ b_parts = [int(x) if x.isdigit() else x for x in (b or "").split(".")]
+
+ for sub_a, sub_b in zip(a_parts, b_parts):
cmp_result = cmp_prerelease_tag(sub_a, sub_b)
if cmp_result != 0:
return cmp_result
- else:
- return _cmp(len(a), len(b))
+
+ return _cmp(len(a_parts), len(b_parts))
@property
def major(self) -> int:
@@ -384,13 +382,11 @@ def compare(self, other: Comparable) -> int:
:return: The return value is negative if ver1 < ver2,
zero if ver1 == ver2 and strictly positive if ver1 > ver2
- >>> semver.compare("2.0.0")
+ >>> Version.parse("1.0.0").compare("2.0.0")
-1
- >>> semver.compare("1.0.0")
+ >>> Version.parse("2.0.0").compare("1.0.0")
1
- >>> semver.compare("2.0.0")
- 0
- >>> semver.compare(dict(major=2, minor=0, patch=0))
+ >>> Version.parse("2.0.0").compare("2.0.0")
0
"""
cls = type(self)
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