fix????

script/install

@@ -249,9 +249,12 @@ then
 
     ## looks like we really do need visual studi c++ tools?
     cd $path_lib
-    wget https://download.visualstudio.microsoft.com/download/pr/e8bc3741-cb70-42aa-9b4e-2bd497de85dd/c180e363efb5c653acd515349e76c4bd5f60526478d5f71d0907294210978d9f/vs_BuildTools.exe
-    cmd //c vs_BuildTools.exe
-    
+    if [ ! -f "vs_BuildTools.exe" ]
+    then
+        wget https://download.visualstudio.microsoft.com/download/pr/e8bc3741-cb70-42aa-9b4e-2bd497de85dd/c180e363efb5c653acd515349e76c4bd5f60526478d5f71d0907294210978d9f/vs_BuildTools.exe
+        cmd //c vs_BuildTools.exe
+    fi
+
 
     ### install themis from source
     if [ ! -f "/usr/local/lib/libthemis.so" ]
@@ -339,7 +342,7 @@ echo "Now using python (t2): `which python`"
 # $pythonexec -m virtualenv venv
 # . venv/bin/activate
 echo "Now using python (t3): `which python`"
-
+python -m pip install -U setuptools
 
 # cd $path_lib
 # git clone https://github.com/seppo0010/rlite-py.git