python: add __version__ attribute to bcc module (#1826)

add __version__  attribute to bcc module

src/python/CMakeLists.txt

@@ -12,6 +12,7 @@ if(NOT PYTHON_CMD)
 endif()
 
 configure_file(setup.py.in ${CMAKE_CURRENT_BINARY_DIR}/setup.py @ONLY)
+configure_file(bcc/version.py.in ${CMAKE_CURRENT_BINARY_DIR}/bcc/version.py @ONLY)
 if(EXISTS "/etc/debian_version")
   set(PYTHON_FLAGS "${PYTHON_FLAGS} --install-layout deb")
 endif()

src/python/bcc/__init__.py

@@ -28,6 +28,7 @@ from .libbcc import lib, bcc_symbol, bcc_symbol_option, _SYM_CB_TYPE
 from .table import Table, PerfEventArray
 from .perf import Perf
 from .utils import get_online_cpus, printb, _assert_is_bytes, ArgString
+from .version import __version__
 
 _probe_limit = 1000
 _num_open_probes = 0

src/python/bcc/version.py.in

+__version__ = '@REVISION@'