code changes prior to testing

Author: alexioannides

Pipfile

@@ -0,0 +1,14 @@
+[[source]]
+url = "https://pypi.org/simple"
+verify_ssl = true
+name = "pypi"
+
+[packages]
+
+[dev-packages]
+pyspark = "==2.3.1"
+ipython = "*"
+"flake8" = "*"
+
+[requires]
+python_version = "3.6"

Pipfile.lock

@@ -0,0 +1,51 @@
+#!/usr/bin/env bash
+
+# check to see if pipenv is installed
+if [ -x "$(which pipenv)" ]
+then
+    # check that there Pipfile exists in root directory
+    if [ ! -e Pipfile ]
+    then
+        echo 'ERROR - cannot find Pipfile'
+        exit 1
+    fi
+
+    # use Pipenv to create a requirement.txt file
+    echo '... creating requirements.txt from Pipfile'
+    pipenv lock -r > requirements.txt
+
+    # install packages to a temporary directory and zip it
+    pip3 install -r requirements.txt --target ./packages
+
+    # check to see if there are any external dependencies
+    # if not then create an empty file to see zip with
+    if [ -z "$(ls -A packages)" ]
+    then
+        touch packages/empty.txt
+    fi
+
+    # zip dependencies
+    if [ ! -d packages ]
+    then 
+        echo 'ERROR - pip failed to import dependencies'
+        exit 1
+    fi
+
+    cd packages
+    zip -9mrv packages.zip .
+    mv packages.zip ..
+    cd ..
+
+    # remove temporary directory and requirements.txt
+    rm -rf packages
+    rm requirements.txt
+    
+    # add local modules
+    echo '... adding all modules from local utils package'
+    zip -ru9 packages.zip dependencies -x dependencies/__pycache__/\*
+
+    exit 0
+else
+    echo 'ERROR - pipenv is not installed --> run pip3 install pipenv to load pipenv into global site packages or install via a system package manager.'
+    exit 1
+fi