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-rw-r--r--Lib/linecache.py24
1 files changed, 20 insertions, 4 deletions
diff --git a/Lib/linecache.py b/Lib/linecache.py
index 7f249a0..50a0c1b 100644
--- a/Lib/linecache.py
+++ b/Lib/linecache.py
@@ -7,7 +7,7 @@ that name.
import sys
import os
-import tokenize
+import re
__all__ = ["getline", "clearcache", "checkcache"]
@@ -121,11 +121,27 @@ def updatecache(filename, module_globals=None):
pass
else:
# No luck
+## print '*** Cannot stat', filename, ':', msg
return []
- with open(fullname, 'rb') as fp:
- coding, line = tokenize.detect_encoding(fp.readline)
- with open(fullname, 'r', encoding=coding) as fp:
+## print("Refreshing cache for %s..." % fullname)
+ try:
+ fp = open(fullname, 'rU')
lines = fp.readlines()
+ fp.close()
+ except Exception as msg:
+## print '*** Cannot open', fullname, ':', msg
+ return []
+ coding = "utf-8"
+ for line in lines[:2]:
+ m = re.search(r"coding[:=]\s*([-\w.]+)", line)
+ if m:
+ coding = m.group(1)
+ break
+ try:
+ lines = [line if isinstance(line, str) else str(line, coding)
+ for line in lines]
+ except:
+ pass # Hope for the best
size, mtime = stat.st_size, stat.st_mtime
cache[filename] = size, mtime, lines, fullname
return lines