This removes the dependency on bisect and it bring the pure Python code
in-sync with the C code.

in the subprocess module on Linux.

the subprocess module on Linux.

#17032: The "global" in the "NameError: global name 'x' is not defined" error message has been removed.  Patch by Ram Rachum.

#16935: unittest now counts the module as skipped if it raises SkipTest, instead of counting it as an error.  Patch by Zachary Ware.