Revert Unicode UCD 5.2 upgrade in 3.x. It broke repr() for unicode objects, and gave failures in test_bigmem. Revert 79062, 79065 and 79083.

Lib/test/test_unicodedata.py

@@ -21,7 +21,7 @@ errors = 'surrogatepass'
 class UnicodeMethodsTest(unittest.TestCase):
 
     # update this, if the database changes
-    expectedchecksum = '4504dffd035baea02c5b9de82bebc3d65e0e0baf'
+    expectedchecksum = '0b915116051f3ed029a98542c2b7df63c9646272'
 
     def test_method_checksum(self):
         h = hashlib.sha1()
@@ -80,7 +80,7 @@ class UnicodeDatabaseTest(unittest.TestCase):
 class UnicodeFunctionsTest(UnicodeDatabaseTest):
 
     # update this, if the database changes
-    expectedchecksum = '6ccf1b1a36460d2694f9b0b0f0324942fe70ede6'
+    expectedchecksum = 'd4169ccff998ebbd1ec007a0b3fbd66e5ccf0229'
 
     def test_function_checksum(self):
         data = []

Misc/NEWS

@@ -290,8 +290,6 @@ Library
 - ``tokenize.detect_encoding`` now returns ``'utf-8-sig'`` when a UTF-8 BOM is
   detected.
 
-- Issue #8024: Update the Unicode database to 5.2.
-
 - Issue #6716/2: Backslash-replace error output in compilall.
 
 - Issue #4961: Inconsistent/wrong result of askyesno function in tkMessageBox

Tools/unicode/makeunicodedata.py

@@ -31,7 +31,7 @@ SCRIPT = sys.argv[0]
 VERSION = "2.6"
 
 # The Unicode Database
-UNIDATA_VERSION = "5.2.0"
+UNIDATA_VERSION = "5.1.0"
 UNICODE_DATA = "UnicodeData%s.txt"
 COMPOSITION_EXCLUSIONS = "CompositionExclusions%s.txt"
 EASTASIAN_WIDTH = "EastAsianWidth%s.txt"