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-rw-r--r--Lib/warnings.py5
1 files changed, 4 insertions, 1 deletions
diff --git a/Lib/warnings.py b/Lib/warnings.py
index 16ae331..bab007f 100644
--- a/Lib/warnings.py
+++ b/Lib/warnings.py
@@ -1,6 +1,10 @@
"""Python part of the warnings subsystem."""
+# 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 linecache
__all__ = ["warn", "showwarning", "formatwarning", "filterwarnings",
"resetwarnings"]
@@ -114,7 +118,6 @@ def showwarning(message, category, filename, lineno, file=None):
def formatwarning(message, category, filename, lineno):
"""Function to format a warning the standard way."""
- import linecache
s = "%s:%s: %s: %s\n" % (filename, lineno, category.__name__, message)
line = linecache.getline(filename, lineno).strip()
if line: