Use copysign() in 2.6 nuke -0.0 test if < 2.6

pytest/test_grammar.py

@@ -42,6 +42,9 @@ def test_grammar():
         expect_lhs.add("kvlist")
         expect_lhs.add("kv3")
         unused_rhs.add("dict")
+    else:
+        # NOTE: this may disappear
+        expect_lhs.add("except_handler_else")
 
     if PYTHON3:
         expect_lhs.add("load_genexpr")

test/stdlib/runtests.sh

@@ -71,26 +71,16 @@ case $PYVERSION in
     2.6)
 	SKIP_TESTS=(
 	    [test_aepack.py]=1 # Fails on its own
- 	    [test_cmath.py]=1  # Investigate: probably fixable like in later versions
- 	    [test_coercion.py]=1
-	    [test_codeccallbacks.py]=1  # Fails on its own
 	    [test_compile.py]=1  # Intermittent - sometimes works and sometimes doesn't
  	    [test_dis.py]=1        # We change line numbers - duh!
-	    [test_exceptions.py]=1
-	    [test_float.py]=1  # Investigate: probably fixable like in later versions
 	    [test_generators.py]=1 # Investigate
 	    [test_grp.py]=1      # Long test - might work Control flow?
-	    [test_itertools.py]=1  # complex numbers. Fix as we do in later versions
-	    [test_math.py]=1  # Probably fixable like later versions
 	    [test_pep352.py]=1     # Investigate
-	    [test_pprint.py]=1
 	    [test_pyclbr.py]=1 # Investigate
 	    [test_pwd.py]=1 # Long test - might work? Control flow?
 	    [test_trace.py]=1  # Line numbers are expected to be different
-	    [test_types.py]=1  # Probably fixable like later versions
-	    [test_urllib2net.py]=1 # Fails on its own. May need interactive input
 	    [test_zipfile64.py]=1  # Skip Long test
-	    [test_zlib.py]=1  # Takes too long to run (more than 3 minutes 39 seconds)
+	    [test_zlib.py]=1  #
 	    # .pyenv/versions/2.6.9/lib/python2.6/lib2to3/refactor.pyc
 	    # .pyenv/versions/2.6.9/lib/python2.6/pyclbr.pyc
 	)
@@ -362,7 +352,10 @@ for file in $files; do
 
     # If the fails *before* decompiling, skip it!
     typeset -i STARTTIME=$(date +%s)
-    if ! python $file >/dev/null 2>&1 ; then
+    if [ ! -r $file ]; then
+	echo "Skipping test $file -- not readable. Does it exist?"
+	continue
+    elif ! python $file >/dev/null 2>&1 ; then
 	echo "Skipping test $file -- it fails on its own"
 	continue
     fi

uncompyle6/parsers/parse2.py

@@ -648,6 +648,7 @@ class Python2Parser(PythonParser):
             self.addRule(rule, nop_func)
             pass
 
+        self.check_reduce["and"] = "AST"
         self.check_reduce["except_handler"] = "tokens"
         self.check_reduce["except_handler_else"] = "tokens"
         self.check_reduce["raise_stmt1"] = "tokens"
@@ -668,10 +669,34 @@ class Python2Parser(PythonParser):
             return False
         lhs = rule[0]
 
+        if rule == ("and", ("expr", "jmp_false", "expr", "\\e_come_from_opt")):
+            # If the instruction after the instructions forming the "and"  is an "YIELD_VALUE"
+            # then this is probably an "if" inside a comprehension.
+            if tokens[last] == "YIELD_VALUE":
+                # Note: We might also consider testing last+1 being "POP_TOP"
+                return True
+
+            # Test that jump_false jump somewhere beyond the end of the "and"
+            # it might not be exactly the end of the "and" because this and can
+            # be a part of a larger condition. Oddly in 2.7 there doesn't seem to be
+            # an optimization where the "and" jump_false is back to a loop.
+            jmp_false = ast[1]
+            if jmp_false[0] == "POP_JUMP_IF_FALSE":
+                while (first < last and isinstance(tokens[last].offset, str)):
+                    last -= 1
+                if jmp_false[0].attr < tokens[last].offset:
+                    return True
+
+            # Test that jmp_false jumps to the end of "and"
+            # or that it jumps to the same place as the end of "and"
+            jmp_false = ast[1][0]
+            jmp_target = jmp_false.offset + jmp_false.attr + 3
+            return not (jmp_target == tokens[last].offset or
+                        tokens[last].pattr == jmp_false.pattr)
         # Dead code testing...
         # if lhs == 'while1elsestmt':
         #     from trepan.api import debug; debug()
-        if (
+        elif (
             lhs in ("aug_assign1", "aug_assign2")
             and ast[0]
             and ast[0][0] in ("and", "or")
@@ -706,16 +731,6 @@ class Python2Parser(PythonParser):
                     pass
                 pass
             pass
-        elif rule == ("ifstmt", ("testexpr", "_ifstmts_jump")):
-            # FIXME: move this into 2.7-specific code?
-            if self.version == 2.7:
-                for i in range(last-1, last-4, -1):
-                    t = tokens[i]
-                    if t == "JUMP_FORWARD":
-                        return t.attr > tokens[min(last, len(tokens)-1)].off2int()
-                    elif t not in ("POP_TOP", "COME_FROM"):
-                        break
-            pass
         elif lhs in ("raise_stmt1",):
             # We will assume 'LOAD_ASSERT' will be handled by an assert grammar rule
             return tokens[first] == "LOAD_ASSERT" and (last >= len(tokens))

uncompyle6/parsers/parse27.py

@@ -239,31 +239,7 @@ class Python27Parser(Python2Parser):
         if invalid:
             return invalid
 
-        if rule == ("and", ("expr", "jmp_false", "expr", "\\e_come_from_opt")):
-            # If the instruction after the instructions forming the "and"  is an "YIELD_VALUE"
-            # then this is probably an "if" inside a comprehension.
-            if tokens[last] == "YIELD_VALUE":
-                # Note: We might also consider testing last+1 being "POP_TOP"
-                return True
-
-            # Test that jump_false jump somewhere beyond the end of the "and"
-            # it might not be exactly the end of the "and" because this and can
-            # be a part of a larger condition. Oddly in 2.7 there doesn't seem to be
-            # an optimization where the "and" jump_false is back to a loop.
-            jmp_false = ast[1]
-            if jmp_false[0] == "POP_JUMP_IF_FALSE":
-                while (first < last and isinstance(tokens[last].offset, str)):
-                    last -= 1
-                if jmp_false[0].attr < tokens[last].offset:
-                    return True
-
-            # Test that jmp_false jumps to the end of "and"
-            # or that it jumps to the same place as the end of "and"
-            jmp_false = ast[1][0]
-            jmp_target = jmp_false.offset + jmp_false.attr + 3
-            return not (jmp_target == tokens[last].offset or
-                        tokens[last].pattr == jmp_false.pattr)
-        elif rule == ("comp_if", ("expr", "jmp_false", "comp_iter")):
+        if rule == ("comp_if", ("expr", "jmp_false", "comp_iter")):
             jmp_false = ast[1]
             if jmp_false[0] == "POP_JUMP_IF_FALSE":
                 return tokens[first].offset < jmp_false[0].attr < tokens[last].offset
@@ -287,6 +263,15 @@ class Python27Parser(Python2Parser):
             return not (last >= len(tokens)
                         or jump_target == tokens[last].offset
                         or jump_target == next_offset(ast[-1].op, ast[-1].opc, ast[-1].offset))
+        elif rule == ("ifstmt", ("testexpr", "_ifstmts_jump")):
+            for i in range(last-1, last-4, -1):
+                t = tokens[i]
+                if t == "JUMP_FORWARD":
+                    return t.attr > tokens[min(last, len(tokens)-1)].off2int()
+                elif t not in ("POP_TOP", "COME_FROM"):
+                    break
+                pass
+            pass
         elif rule == ("iflaststmtl", ("testexpr", "c_stmts")):
             testexpr = ast[0]
             if testexpr[0] in ("testfalse", "testtrue"):