python: Add access to the property_tree from Python

Example:
>>> usrp = uhd.usrp.multi_usrp("")
>>> tree = usrp.get_tree()
>>> print(tree.access_int("/name").get())

4 files changed, 20 insertions, 0 deletions

diff --git a/host/python/CMakeLists.txt b/host/python/CMakeLists.txt
index d4417903d..1e9fefa43 100644
--- a/host/python/CMakeLists.txt
+++ b/host/python/CMakeLists.txt
@@ -31,6 +31,7 @@ execute_process(
 # Build pyuhd library
 add_library(pyuhd SHARED
     pyuhd.cpp
+    ${CMAKE_SOURCE_DIR}/lib/property_tree_python.cpp
     ${CMAKE_SOURCE_DIR}/lib/usrp/multi_usrp_python.cpp
 )
 # python expects extension modules with a particular suffix
diff --git a/host/python/pyuhd.cpp b/host/python/pyuhd.cpp
index bb564c276..eadb88d40 100644
--- a/host/python/pyuhd.cpp
+++ b/host/python/pyuhd.cpp
@@ -14,6 +14,7 @@
 namespace py = pybind11;
 
 #include "cal/cal_python.hpp"
+#include "property_tree_python.hpp"
 #include "rfnoc/ddc_block_control_python.hpp"
 #include "rfnoc/duc_block_control_python.hpp"
 #include "rfnoc/fft_block_control_python.hpp"
@@ -110,4 +111,7 @@ PYBIND11_MODULE(libpyuhd, m)
 
     auto chdr_module = m.def_submodule("chdr", "CHDR Parsing");
     export_utils(chdr_module);
+
+    // Register property tree
+    export_property_tree(m);
 }
diff --git a/host/python/uhd/__init__.py b/host/python/uhd/__init__.py
index 99c10c3b1..bf11ac513 100644
--- a/host/python/uhd/__init__.py
+++ b/host/python/uhd/__init__.py
@@ -14,3 +14,6 @@ from . import rfnoc
 from . import dsp
 from . import chdr
 from .libpyuhd.paths import *
+from .property_tree import PropertyTree
+
+
diff --git a/host/python/uhd/property_tree.py b/host/python/uhd/property_tree.py
new file mode 100644
index 000000000..02c6d108c
--- /dev/null
+++ b/host/python/uhd/property_tree.py
@@ -0,0 +1,12 @@
+#
+# Copyright 2020 Ettus Research, a National Instruments Brand
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+#
+"""
+Access to the property tree
+"""
+
+from . import libpyuhd as lib
+
+PropertyTree = lib.property_tree