Issue #9337: Make float.__str__ identical to float.__repr__.

(And similarly for complex numbers.)

4 files changed, 38 insertions, 43 deletions

diff --git a/Lib/test/formatfloat_testcases.txt b/Lib/test/formatfloat_testcases.txt
index 4cf20aa..9f045b7 100644
--- a/Lib/test/formatfloat_testcases.txt
+++ b/Lib/test/formatfloat_testcases.txt
@@ -314,43 +314,37 @@
 %#.5g 234.56 -> 234.56
 %#.6g 234.56 -> 234.560
 
--- for repr formatting see the separate test_short_repr test in
--- test_float.py.  Not all platforms use short repr for floats.
-
--- str formatting.  Result always includes decimal point and at
+-- repr formatting.  Result always includes decimal point and at
 -- least one digit after the point, or an exponent.
-%s 0 -> 0.0
-%s 1 -> 1.0
-
-%s 0.01 -> 0.01
-%s 0.02 -> 0.02
-%s 0.03 -> 0.03
-%s 0.04 -> 0.04
-%s 0.05 -> 0.05
+%r 0 -> 0.0
+%r 1 -> 1.0
 
--- str truncates to 12 significant digits
-%s 1.234123412341 -> 1.23412341234
-%s 1.23412341234 -> 1.23412341234
-%s 1.2341234123 -> 1.2341234123
+%r 0.01 -> 0.01
+%r 0.02 -> 0.02
+%r 0.03 -> 0.03
+%r 0.04 -> 0.04
+%r 0.05 -> 0.05
 
--- values >= 1e11 get an exponent
-%s 10 -> 10.0
-%s 100 -> 100.0
-%s 1e10 -> 10000000000.0
-%s 9.999e10 -> 99990000000.0
-%s 99999999999 -> 99999999999.0
-%s 99999999999.9 -> 99999999999.9
-%s 99999999999.99 -> 1e+11
-%s 1e11 -> 1e+11
-%s 1e12 -> 1e+12
+-- values >= 1e16 get an exponent
+%r 10 -> 10.0
+%r 100 -> 100.0
+%r 1e15 -> 1000000000000000.0
+%r 9.999e15 -> 9999000000000000.0
+%r 9999999999999998 -> 9999999999999998.0
+%r 9999999999999999 -> 1e+16
+%r 1e16 -> 1e+16
+%r 1e17 -> 1e+17
 
 -- as do values < 1e-4
-%s 1e-3 -> 0.001
-%s 1.001e-4 -> 0.0001001
-%s 1.000000000001e-4 -> 0.0001
-%s 1.00000000001e-4 -> 0.000100000000001
-%s 1.0000000001e-4 -> 0.00010000000001
-%s 1e-4 -> 0.0001
-%s 0.999999999999e-4 -> 9.99999999999e-05
-%s 0.999e-4 -> 9.99e-05
-%s 1e-5 -> 1e-05
+%r 1e-3 -> 0.001
+%r 1.001e-4 -> 0.0001001
+%r 1.0000000000000001e-4 -> 0.0001
+%r 1.000000000000001e-4 -> 0.0001000000000000001
+%r 1.00000000001e-4 -> 0.000100000000001
+%r 1.0000000001e-4 -> 0.00010000000001
+%r 1e-4 -> 0.0001
+%r 0.99999999999999999e-4 -> 0.0001
+%r 0.9999999999999999e-4 -> 9.999999999999999e-05
+%r 0.999999999999e-4 -> 9.99999999999e-05
+%r 0.999e-4 -> 9.99e-05
+%r 1e-5 -> 1e-05
diff --git a/Lib/test/test_float.py b/Lib/test/test_float.py
index a1b130b..ac5fc33 100644
--- a/Lib/test/test_float.py
+++ b/Lib/test/test_float.py
@@ -617,7 +617,9 @@ class ReprTestCase(unittest.TestCase):
             negs = '-'+s
             self.assertEqual(s, repr(float(s)))
             self.assertEqual(negs, repr(float(negs)))
-
+            # Since Python 3.2, repr and str are identical
+            self.assertEqual(repr(float(s)), str(float(s)))
+            self.assertEqual(repr(float(negs)), str(float(negs)))
 
 @requires_IEEE_754
 class RoundTestCase(unittest.TestCase):
diff --git a/Lib/test/test_tokenize.py b/Lib/test/test_tokenize.py
index d0853d3..4b56699 100644
--- a/Lib/test/test_tokenize.py
+++ b/Lib/test/test_tokenize.py
@@ -598,11 +598,11 @@ def decistmt(s):
 
     The format of the exponent is inherited from the platform C library.
     Known cases are "e-007" (Windows) and "e-07" (not Windows).  Since
-    we're only showing 12 digits, and the 13th isn't close to 5, the
+    we're only showing 11 digits, and the 12th isn't close to 5, the
     rest of the output should be platform-independent.
 
     >>> exec(s) #doctest: +ELLIPSIS
-    -3.21716034272e-0...7
+    -3.2171603427...e-0...7
 
     Output from calculations with Decimal should be identical across all
     platforms.
diff --git a/Lib/test/test_unicodedata.py b/Lib/test/test_unicodedata.py
index 59e6d39..b572261 100644
--- a/Lib/test/test_unicodedata.py
+++ b/Lib/test/test_unicodedata.py
@@ -80,8 +80,7 @@ class UnicodeDatabaseTest(unittest.TestCase):
 class UnicodeFunctionsTest(UnicodeDatabaseTest):
 
     # update this, if the database changes
-    expectedchecksum = '6ccf1b1a36460d2694f9b0b0f0324942fe70ede6'
-
+    expectedchecksum = 'e89a6380093a00a7685ac7b92e7367d737fcb79b'
     def test_function_checksum(self):
         data = []
         h = hashlib.sha1()
@@ -90,9 +89,9 @@ class UnicodeFunctionsTest(UnicodeDatabaseTest):
             char = chr(i)
             data = [
                 # Properties
-                str(self.db.digit(char, -1)),
-                str(self.db.numeric(char, -1)),
-                str(self.db.decimal(char, -1)),
+                format(self.db.digit(char, -1), '.12g'),
+                format(self.db.numeric(char, -1), '.12g'),
+                format(self.db.decimal(char, -1), '.12g'),
                 self.db.category(char),
                 self.db.bidirectional(char),
                 self.db.decomposition(char),