Fixes for includion in StandaloneZODB test suite.

The testrunner reports all tests passed after these changes.
Remove unnecessary path munging and attempts to import ZODB.
Update uses of whrandom to use random.

src/BTrees/tests/testBTrees.py

@@ -82,14 +82,7 @@
 # attributions are listed in the accompanying credits file.
 # 
 ##############################################################################
-import sys, os, time, whrandom
-
-try:
-    sys.path.insert(0, '.')
-    import ZODB
-except:
-    sys.path.insert(0, '../..')
-    import ZODB
+import sys, os, time, random
 
 from BTrees.OOBTree import OOBTree, OOBucket, OOSet, OOTreeSet
 from BTrees.IOBTree import IOBTree, IOBucket, IOSet, IOTreeSet
@@ -208,7 +201,7 @@ class MappingBase(Base):
         added = {}
         r = range(1000)
         for x in r:
-            k = whrandom.choice(r)
+            k = random.choice(r)
             self.t[k] = x
             added[k] = x
         addl = added.keys()
@@ -276,7 +269,7 @@ class MappingBase(Base):
     def testClear(self):
         r = range(100)
         for x in r:
-            rnd = whrandom.choice(r)
+            rnd = random.choice(r)
             self.t[rnd] = 0
         self.t.clear()
         diff = lsubtract(list(self.t.keys()), [])
@@ -287,7 +280,7 @@ class MappingBase(Base):
         d={}
         l=[]
         for i in range(10000):
-            k=whrandom.randint(-2000, 2000)
+            k=random.randrange(-2000, 2001)
             d[k]=i
             l.append((k, i))
             
@@ -396,7 +389,7 @@ class NormalSetTests(Base):
         d={}
         l=[]
         for i in range(10000):
-            k=whrandom.randint(-2000, 2000)
+            k=random.randrange(-2000, 2001)
             d[k]=i
             l.append(k)
             
@@ -502,7 +495,7 @@ class BTreeTests(MappingBase):
         added = {}
         r = range(100)
         for x in r:
-            k = whrandom.choice(r)
+            k = random.choice(r)
             if not added.has_key(k):
                 self.t[k] = x
                 added[k] = 1
@@ -515,7 +508,7 @@ class BTreeTests(MappingBase):
         added = {}
         r = range(100)
         for x in r:
-            k = whrandom.choice(r)
+            k = random.choice(r)
             self.t[k] = x
             added[k] = 1
         addl = added.keys()
@@ -527,12 +520,12 @@ class BTreeTests(MappingBase):
         r = range(1000)
         added = []
         for x in r:
-            k = whrandom.choice(r)
+            k = random.choice(r)
             self.t[k] = x
             added.append(k)
         deleted = []
         for x in r:
-            k = whrandom.choice(r)
+            k = random.choice(r)
             if self.t.has_key(k):
                 del self.t[k]
                 deleted.append(k)
@@ -547,7 +540,7 @@ class BTreeTests(MappingBase):
     def testTargetedDeletes(self):
         r = range(1000)
         for x in r:
-            k = whrandom.choice(r)
+            k = random.choice(r)
             self.t[k] = x
         for x in r:
             try:
@@ -634,7 +627,7 @@ class BTreeTests(MappingBase):
         r = range(100)
         a = {}
         for x in r:
-            rnd = whrandom.choice(r)
+            rnd = random.choice(r)
             self.t[rnd] = 0
             a[rnd] = 0
         diff = lsubtract(list(self.t.keys(0, 100)), a.keys())

src/BTrees/tests/testConflict.py

@@ -82,14 +82,7 @@
 # attributions are listed in the accompanying credits file.
 # 
 ##############################################################################
-import sys, os, time, whrandom
-
-try:
-    sys.path.insert(0, '.')
-    import ZODB
-except:
-    sys.path.insert(0, '../..')
-    import ZODB
+import sys, os, time, random
 
 from BTrees.OOBTree import OOBTree, OOBucket, OOSet, OOTreeSet
 from BTrees.IOBTree import IOBTree, IOBucket, IOSet, IOTreeSet
@@ -129,18 +122,18 @@ class MappingBase(Base):
         base=self.t
         d={}
         for i in range(20):
-            d[whrandom.randint(-10000, 10000)]=i*100000
+            d[random.randrange(-10000, 10001)]=i*100000
 
         e1={}
         while len(e1) < 5:
-            k=whrandom.randint(-10000, 10000)
+            k=random.randrange(-10000, 10001)
             if not d.has_key(k):
                 e1[k]=len(e1)
         e1=e1.items()
 
         e2={}
         while len(e2) < 5:
-            k=whrandom.randint(-10000, 10000)
+            k=random.randrange(-10000, 10001)
             if not d.has_key(k) and not e2.has_key(k):
                 e2[k]=len(e2)
         e2=e2.items()
@@ -280,18 +273,18 @@ class ExtendedSetTests(NormalSetTests):
         base=self.t
         d={}
         for i in range(20):
-            d[whrandom.randint(-10000, 10000)]=i*100000
+            d[random.randrange(-10000, 10001)]=i*100000
 
         e1={}
         while len(e1) < 5:
-            k=whrandom.randint(-10000, 10000)
+            k=random.randrange(-10000, 10001)
             if not d.has_key(k):
                 e1[k]=len(e1)
         e1=e1.keys()
 
         e2={}
         while len(e2) < 5:
-            k=whrandom.randint(-10000, 10000)
+            k=random.randrange(-10000, 10001)
             if not d.has_key(k) and not e2.has_key(k):
                 e2[k]=len(e2)
         e2=e2.keys()