defer re module imports to help improve interpreter startup
diff --git a/Lib/warnings.py b/Lib/warnings.py
index bab007f..1c55fb2 100644
--- a/Lib/warnings.py
+++ b/Lib/warnings.py
@@ -3,7 +3,7 @@
# Note: function level imports should *not* be used
# in this module as it may cause import lock deadlock.
# See bug 683658.
-import sys, re, types
+import sys, types
import linecache
__all__ = ["warn", "showwarning", "formatwarning", "filterwarnings",
@@ -129,6 +129,7 @@
"""Insert an entry into the list of warnings filters (at the front).
Use assertions to check that all arguments have the right type."""
+ import re
assert action in ("error", "ignore", "always", "default", "module",
"once"), "invalid action: %s" % `action`
assert isinstance(message, basestring), "message must be a string"
@@ -162,6 +163,7 @@
# Helper for _processoptions()
def _setoption(arg):
+ import re
parts = arg.split(':')
if len(parts) > 5:
raise _OptionError("too many fields (max 5): %s" % `arg`)
@@ -198,6 +200,7 @@
# Helper for _setoption()
def _getcategory(category):
+ import re
if not category:
return Warning
if re.match("^[a-zA-Z0-9_]+$", category):