ros-noetic-catkin-virtualenv.patch

diff --git a/catkin_virtualenv/cmake/catkin_generate_virtualenv.cmake b/catkin_virtualenv/cmake/catkin_generate_virtualenv.cmake
index 0dc1a42..d6b7c2f 100644
--- a/catkin_virtualenv/cmake/catkin_generate_virtualenv.cmake
+++ b/catkin_virtualenv/cmake/catkin_generate_virtualenv.cmake
@@ -29,7 +29,7 @@ function(catkin_generate_virtualenv)
   endif()
 
   if(NOT DEFINED ARG_PYTHON_INTERPRETER)
-    set(ARG_PYTHON_INTERPRETER "python2")
+    set(ARG_PYTHON_INTERPRETER "python")
   endif()
 
   if(NOT DEFINED ARG_USE_SYSTEM_PACKAGES OR ARG_USE_SYSTEM_PACKAGES)
diff --git a/catkin_virtualenv/src/catkin_virtualenv/venv.py b/catkin_virtualenv/src/catkin_virtualenv/venv.py
index 3737a94..9fc9e32 100644
--- a/catkin_virtualenv/src/catkin_virtualenv/venv.py
+++ b/catkin_virtualenv/src/catkin_virtualenv/venv.py
@@ -60,8 +60,8 @@ def initialize(self, python, use_system_packages, extra_pip_args, clean=True):
             raise RuntimeError(error_msg)
 
         preinstall = [
-            "pip==20.1",
-            "pip-tools==5.1.2",
+            "pip",
+            "pip-tools",
         ]
 
         builtin_venv = self._check_module(system_python, "venv")
@@ -71,7 +71,7 @@ def initialize(self, python, use_system_packages, extra_pip_args, clean=True):
             virtualenv = ["virtualenv", "--no-setuptools", "--verbose", "--python", python]
             # py2's virtualenv command will try install latest setuptools. setuptools>=45 not compatible with py2,
             # but we do require a reasonably up-to-date version (because of pip==20.1), so v44 at least.
-            preinstall += ["setuptools>=44,<45"]
+            preinstall += ["setuptools"]
 
         if use_system_packages:
             virtualenv.append("--system-site-packages")