[TestBreakpointCommand] Fix after r251121

[sivachandra]

Summary

"from future import print_function" was added to the test file but
not to the embedded interpreter. This change uses file.write instead to
avoid all problems with print.

[zturner]

Can you leave the from future import print_function at the top? That's
orthogonal to changing the dynamically executed code.

I can reproduce this problem by running LLDB in 2.7 and entering the
embedded interpreter and typing print("foo", file=sys.stdout). So I can
probably fix that and this is an ok workaround for now, but people still
need to be using print function instead of print statement on statically
generated python code, so I think the future statement should stay.

[sivachandra]

Put back the import of print_function from future.

test/functionalities/breakpoint/breakpoint_command/TestBreakpointCommand.py

def breakpoint_command_sequence(self):
         lldbutil.run_break_set_by_file_and_line (self, None, self.line, num_expected_locations=1, loc_exact=True)
         lldbutil.run_break_set_by_file_and_line (self, "main.c", self.line, num_expected_locations=1, loc_exact=True)
         lldbutil.run_break_set_by_file_and_line (self, "main.c", self.line, num_expected_locations=1, loc_exact=True)
         # Breakpoint 4 - set at the same location as breakpoint 1 to test setting breakpoint commands on two breakpoints at a time
         lldbutil.run_break_set_by_file_and_line (self, None, self.line, num_expected_locations=1, loc_exact=True)
 
         # Now add callbacks for the breakpoints just created.
         self.runCmd("breakpoint command add -s command -o 'frame variable --show-types --scope' 1 4")
-        self.runCmd("breakpoint command add -s python -o 'here = open(\"output.txt\", \"w\"); print(\"lldb\", file=here); here.close()' 2")
+        self.runCmd("breakpoint command add -s python -o 'here = open(\"output.txt\", \"w\"); here.write(\"lldb\\n\"); here.close()' 2")
         self.runCmd("breakpoint command add --python-function bktptcmd.function 3")
 
         # Check that the breakpoint commands are correctly set.
 
         # The breakpoint list now only contains breakpoint 1.
         self.expect("breakpoint list", "Breakpoints 1 & 2 created",
             substrs = ["2: file = 'main.c', line = %d, exact_match = 0, locations = 1" % self.line],
             patterns = ["1: file = '.*main.c', line = %d, exact_match = 0, locations = 1" % self.line] )
 
         self.expect("breakpoint list -f", "Breakpoints 1 & 2 created",
             substrs = ["2: file = 'main.c', line = %d, exact_match = 0, locations = 1" % self.line],
             patterns = ["1: file = '.*main.c', line = %d, exact_match = 0, locations = 1" % self.line,
                         "1.1: .+at main.c:%d, .+unresolved, hit count = 0" % self.line,
                         "2.1: .+at main.c:%d, .+unresolved, hit count = 0" % self.line])
 
         self.expect("breakpoint command list 1", "Breakpoint 1 command ok",
             substrs = ["Breakpoint commands:",
                           "frame variable --show-types --scope"])
         self.expect("breakpoint command list 2", "Breakpoint 2 command ok",
             substrs = ["Breakpoint commands:",
                           "here = open",
-                          "print(file=here)",
+                          "here.write",
                           "here.close()"])
         self.expect("breakpoint command list 3", "Breakpoint 3 command ok",
             substrs = ["Breakpoint commands:",
                           "bktptcmd.function(frame, bp_loc, internal_dict)"])
 
         self.expect("breakpoint command list 4", "Breakpoint 4 command ok",
             substrs = ["Breakpoint commands:",
                           "frame variable --show-types --scope"])
def breakpoint_command_script_parameters (self):
         """Test that the frame and breakpoint location are being properly passed to the script breakpoint command function."""
         exe = os.path.join(os.getcwd(), "a.out")
         self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
 
         # Add a breakpoint.
         lldbutil.run_break_set_by_file_and_line (self, "main.c", self.line, num_expected_locations=1, loc_exact=True)
 
         # Now add callbacks for the breakpoints just created.
-        self.runCmd("breakpoint command add -s python -o 'here = open(\"output-2.txt\", \"w\"); print(frame, file=here); print(bp_loc, file=here); here.close()' 1")
+        self.runCmd("breakpoint command add -s python -o 'here = open(\"output-2.txt\", \"w\"); here.write(str(frame) + \"\\n\"); here.write(str(bp_loc) + \"\\n\"); here.close()' 1")
 
         # Remove 'output-2.txt' if it already exists.
 
         if (os.path.exists('output-2.txt')):
             os.remove ('output-2.txt')
 
         # Run program, hit breakpoint, and hopefully write out new version of 'output-2.txt'
         self.runCmd ("run", RUN_SUCCEEDED)