blob: b292d48d6e0f1972bd9f93354cfd52bdc952e4da (
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diff --git a/re_assert.py b/re_assert.py
index 840401e..8818da1 100644
--- a/re_assert.py
+++ b/re_assert.py
@@ -1,8 +1,13 @@
+import sys
+
from typing import Any
from typing import Optional
from typing import Pattern
-import regex
+if sys.implementation.name == "cpython":
+ import regex
+else:
+ import re as regex
class Matches: # TODO: Generic[AnyStr] (binary pattern support)
@@ -12,6 +17,9 @@ class Matches: # TODO: Generic[AnyStr] (binary pattern support)
self._type = type(pattern)
def _fail_message(self, fail: str) -> str:
+ if sys.implementation.name != "cpython":
+ return "regex failed to match"
+
# binary search to find the longest substring match
pos, bound = 0, len(fail)
while pos < bound:
diff --git a/setup.cfg b/setup.cfg
index 46303ca..74cf999 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -20,7 +20,7 @@ classifiers =
[options]
py_modules = re_assert
install_requires =
- regex
+ regex; python_implementation=="CPython"
python_requires = >=3.6.1
[bdist_wheel]
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