add moo into the requirements.txt with URL to its github repo; remove special handling of moo in the setup_python_env script

Author: Pengfei Ding

Diff for: scripts/pyvenv_requirements.txt

@@ -13,5 +13,4 @@ numpy==1.19.4
 openpyxl==3.0.5
 pyrsistent==0.17.3
 six==1.15.0
-# Comment out moo, as by default PyPI's moo will be picked up.
-# moo==0.2.0
+moo==git+git://github.com/brettviren/[email protected]#egg=moo

Diff for: scripts/setup_python_venv

@@ -81,17 +81,17 @@ fi
 ###
 # special handling of the moo module since PyPI has a module with same name.
 ###
-if python -c "import moo" &> /dev/null; then
-    echo "INFO [`eval $timenow`]: moo is installed."
-    pip list|grep moo
-else
-    echo "INFO [`eval $timenow`]: moo is not installed. Install it now."
-    pip install git+git://github.com/brettviren/moo.git
-    if [[ $? != "0" ]]; then
-        echo "ERROR [`eval $timenow`]: Installing moo failed."
-        exit 13
-    fi
-fi
+#if python -c "import moo" &> /dev/null; then
+#    echo "INFO [`eval $timenow`]: moo is installed."
+#    pip list|grep moo
+#else
+#    echo "INFO [`eval $timenow`]: moo is not installed. Install it now."
+#    pip install git+git://github.com/brettviren/moo.git
+#    if [[ $? != "0" ]]; then
+#        echo "ERROR [`eval $timenow`]: Installing moo failed."
+#        exit 13
+#    fi
+#fi
 
 
 echo "INFO [`eval $timenow`]: $VEVN_NAME has been activated, use \"deactivate\" to exit the venv."