Python 2/3 compat: str vs basestring

[davide]

LGTM.

examples/summaries/cocoa/CFArray.py

 """
 LLDB AppKit formatters
 
 Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 See https://llvm.org/LICENSE.txt for license information.
 SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 """
 # example summary provider for NSArray
 # the real summary is now C++ code built into LLDB
 import lldb
 import ctypes
 import lldb.runtime.objc.objc_runtime
 import lldb.formatters.metrics
 import lldb.formatters.Logger
 
+try:
+    basestring
+except NameError:
+    basestring = str
+
 statistics = lldb.formatters.metrics.Metrics()
 statistics.add_metric('invalid_isa')
 statistics.add_metric('invalid_pointer')
 statistics.add_metric('unknown_class')
 statistics.add_metric('code_notrun')
 
 # much less functional than the other two cases below
 # just runs code to get to the count and then returns

examples/summaries/cocoa/CFBag.py

 """
 LLDB AppKit formatters
 
 Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 See https://llvm.org/LICENSE.txt for license information.
 SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 """
 # example summary provider for CFBag
 # the real summary is now C++ code built into LLDB
 import lldb
 import ctypes
 import lldb.runtime.objc.objc_runtime
 import lldb.formatters.metrics
 import lldb.formatters.Logger
 
+try:
+    basestring
+except NameError:
+    basestring = str
+
 statistics = lldb.formatters.metrics.Metrics()
 statistics.add_metric('invalid_isa')
 statistics.add_metric('invalid_pointer')
 statistics.add_metric('unknown_class')
 statistics.add_metric('code_notrun')
 
 # despite the similary to synthetic children providers, these classes are not
 # trying to provide anything but the length for an CFBag, so they need not

examples/summaries/cocoa/CFBinaryHeap.py

 """
 LLDB AppKit formatters
 
 Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 See https://llvm.org/LICENSE.txt for license information.
 SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 """
 # example summary provider for CFBinaryHeap
 # the real summary is now C++ code built into LLDB
 import lldb
 import ctypes
 import lldb.runtime.objc.objc_runtime
 import lldb.formatters.metrics
 import lldb.formatters.Logger
 
+try:
+    basestring
+except NameError:
+    basestring = str
+
 statistics = lldb.formatters.metrics.Metrics()
 statistics.add_metric('invalid_isa')
 statistics.add_metric('invalid_pointer')
 statistics.add_metric('unknown_class')
 statistics.add_metric('code_notrun')
 
 # despite the similary to synthetic children providers, these classes are not
 # trying to provide anything but the length for an CFBinaryHeap, so they need not

examples/summaries/cocoa/CFDictionary.py

 """
 LLDB AppKit formatters
 
 Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 See https://llvm.org/LICENSE.txt for license information.
 SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 """
 # example summary provider for NSDictionary
 # the real summary is now C++ code built into LLDB
 import lldb
 import ctypes
 import lldb.runtime.objc.objc_runtime
 import lldb.formatters.metrics
 import lldb.formatters.Logger
 
+try:
+    basestring
+except NameError
+    basestring = str
+
 statistics = lldb.formatters.metrics.Metrics()
 statistics.add_metric('invalid_isa')
 statistics.add_metric('invalid_pointer')
 statistics.add_metric('unknown_class')
 statistics.add_metric('code_notrun')
 
 # despite the similary to synthetic children providers, these classes are not
 # trying to provide anything but the count for an NSDictionary, so they need not

examples/summaries/cocoa/NSData.py

 """
 LLDB AppKit formatters
 
 Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 See https://llvm.org/LICENSE.txt for license information.
 SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 """
 # example summary provider for NSData
 # the real summary is now C++ code built into LLDB
 import lldb
 import ctypes
 import lldb.runtime.objc.objc_runtime
 import lldb.formatters.metrics
 import lldb.formatters.Logger
 
+try:
+    basestring
+except NameError:
+    basestring = str
+
 statistics = lldb.formatters.metrics.Metrics()
 statistics.add_metric('invalid_isa')
 statistics.add_metric('invalid_pointer')
 statistics.add_metric('unknown_class')
 statistics.add_metric('code_notrun')
 
 # despite the similary to synthetic children providers, these classes are not
 # trying to provide anything but the length for an NSData, so they need not

examples/summaries/cocoa/NSIndexSet.py

 """
 LLDB AppKit formatters
 
 Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 See https://llvm.org/LICENSE.txt for license information.
 SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 """
 # example summary provider for NS(Mutable)IndexSet
 # the real summary is now C++ code built into LLDB
 import lldb
 import ctypes
 import lldb.runtime.objc.objc_runtime
 import lldb.formatters.metrics
 import lldb.formatters.Logger
 
+try:
+    basestring
+except NameError:
+    basestring = str
+
 statistics = lldb.formatters.metrics.Metrics()
 statistics.add_metric('invalid_isa')
 statistics.add_metric('invalid_pointer')
 statistics.add_metric('unknown_class')
 statistics.add_metric('code_notrun')
 
 # despite the similary to synthetic children providers, these classes are not
 # trying to provide anything but the count of values for an NSIndexSet, so they need not

examples/summaries/cocoa/NSMachPort.py

 """
 LLDB AppKit formatters
 
 Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 See https://llvm.org/LICENSE.txt for license information.
 SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 """
 # example summary provider for NSMachPort
 # the real summary is now C++ code built into LLDB
 import lldb
 import ctypes
 import lldb.runtime.objc.objc_runtime
 import lldb.formatters.metrics
 import lldb.formatters.Logger
 
+try:
+    basestring
+except NameError:
+    basestring =str
+
 statistics = lldb.formatters.metrics.Metrics()
 statistics.add_metric('invalid_isa')
 statistics.add_metric('invalid_pointer')
 statistics.add_metric('unknown_class')
 statistics.add_metric('code_notrun')
 
 # despite the similary to synthetic children providers, these classes are not
 # trying to provide anything but the port number of an NSMachPort, so they need not

examples/summaries/cocoa/NSSet.py

 """
 LLDB AppKit formatters
 
 Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 See https://llvm.org/LICENSE.txt for license information.
 SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 """
 # summary provider for NSSet
 import lldb
 import ctypes
 import lldb.runtime.objc.objc_runtime
 import lldb.formatters.metrics
 import CFBag
 import lldb.formatters.Logger
 
+try:
+    basestring
+except NameError:
+    basestring = str
+
 statistics = lldb.formatters.metrics.Metrics()
 statistics.add_metric('invalid_isa')
 statistics.add_metric('invalid_pointer')
 statistics.add_metric('unknown_class')
 statistics.add_metric('code_notrun')
 
 # despite the similary to synthetic children providers, these classes are not
 # trying to provide anything but the port number of an NSMachPort, so they need not