diff --git a/.github/workflows/package.yml b/.github/workflows/package.yml
index d7ee9615b..d55f212f9 100644
--- a/.github/workflows/package.yml
+++ b/.github/workflows/package.yml
@@ -29,7 +29,3 @@ jobs:
         run: ./gradlew :dagger-core:minimalAndShadowPublish
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      - name: Publish Zip Package of dagger-py-functions
-        run: ./gradlew publishPyZipPublicationToGitHubPackagesRepository
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/python_release.yml b/.github/workflows/python_release.yml
new file mode 100644
index 000000000..4679a3e95
--- /dev/null
+++ b/.github/workflows/python_release.yml
@@ -0,0 +1,23 @@
+name: Python Package
+on:
+  release:
+    types: [created]
+
+jobs:
+  publishPythonZip:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Zip Python Udf
+        run: |
+          zip -r python_udfs.zip dagger-py-functions/udfs -x "*/__init__.py"
+          zip -r dagger-py-functions.zip python_functions/requirements.txt python_functions/data python_udfs.zip
+      - name: Upload Release
+        uses: ncipollo/release-action@v1
+        with:
+          artifacts: dagger-py-functions.zip
+          allowUpdates: true
+          omitNameDuringUpdate: true
+          omitBodyDuringUpdate: true
+          omitPrereleaseDuringUpdate: true
+          token: ${{ secrets.GITHUB_TOKEN }}
\ No newline at end of file
diff --git a/.github/workflows/python_validation.yml b/.github/workflows/python_validation.yml
new file mode 100644
index 000000000..0a8b04c40
--- /dev/null
+++ b/.github/workflows/python_validation.yml
@@ -0,0 +1,27 @@
+name: Python Validation
+
+on: push
+
+jobs:
+  pythonValidation:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up Python 3.8
+        uses: actions/setup-python@v3
+        with:
+          python-version: '3.8'
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install apache-flink==1.14.3
+          cd dagger-py-functions
+          if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+      - name: Lint with flake8
+        run: |
+          # stop the build if there are Python syntax errors or undefined names
+          flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
+      - name: Test with pytest
+        run: |
+          cd dagger-py-functions
+          pytest --disable-warnings
\ No newline at end of file
diff --git a/build.gradle b/build.gradle
index 58272b4f1..0af27232b 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,25 +1,7 @@
-buildscript {
-    repositories {
-        mavenLocal()
-        mavenCentral()
-        maven {
-            url "https://plugins.gradle.org/m2/"
-        }
-    }
-
-}
-
-plugins {
-    id 'maven-publish'
-}
-
 ext {
     flinkVersion = System.getenv('flinkVersion') ?: '1.14.3'
 }
 
-def pyZipVersion = rootProject.file('version.txt').text.trim()
-group 'io.odpf'
-
 subprojects {
     repositories {
         mavenLocal()
@@ -33,37 +15,10 @@ subprojects {
     apply plugin: 'idea'
     apply plugin: 'checkstyle'
 
+    group 'io.odpf'
+
     checkstyle {
         toolVersion '7.6.1'
         configFile rootProject.file("config/checkstyle/checkstyle.xml")
     }
-}
-
-task makePyZip(type: Zip) {
-    from fileTree(dir: 'dagger-py-functions')
-    include '**/*'
-    archiveName "dagger-py-functions.zip"
-    destinationDir file("$rootDir/")
-}
-
-publishing {
-    publications {
-        pyZip(MavenPublication) {
-            artifact source: makePyZip, extension: 'zip'
-            groupId group
-            artifactId 'dagger-py-functions'
-            version pyZipVersion
-        }
-    }
-
-    repositories {
-        maven {
-            name = "GitHubPackages"
-            url = "https://maven.pkg.github.com/odpf/dagger"
-            credentials {
-                username = System.getenv("GITHUB_ACTOR")
-                password = System.getenv("GITHUB_TOKEN")
-            }
-        }
-    }
 }
\ No newline at end of file
diff --git a/dagger-py-functions/data/sample_data.txt b/dagger-py-functions/data/sample_data.txt
new file mode 100644
index 000000000..157f4b043
--- /dev/null
+++ b/dagger-py-functions/data/sample_data.txt
@@ -0,0 +1 @@
+sample_text
\ No newline at end of file
diff --git a/dagger-py-functions/requirements.txt b/dagger-py-functions/requirements.txt
index e69de29bb..64e47665c 100644
--- a/dagger-py-functions/requirements.txt
+++ b/dagger-py-functions/requirements.txt
@@ -0,0 +1,2 @@
+pytest==7.1.2
+flake8==4.0.1
\ No newline at end of file
diff --git a/dagger-py-functions/README.md b/dagger-py-functions/test/__init__.py
similarity index 100%
rename from dagger-py-functions/README.md
rename to dagger-py-functions/test/__init__.py
diff --git a/dagger-py-functions/test/scalar/__init__.py b/dagger-py-functions/test/scalar/__init__.py
new file mode 100644
index 000000000..e69de29bb
diff --git a/dagger-py-functions/test/scalar/sample_test.py b/dagger-py-functions/test/scalar/sample_test.py
new file mode 100644
index 000000000..f3f31aec7
--- /dev/null
+++ b/dagger-py-functions/test/scalar/sample_test.py
@@ -0,0 +1,6 @@
+from udfs.scalar.sample import sample
+
+
+def testSample():
+    f = sample._func
+    assert f("input_text_") == "input_text_sample_text"
diff --git a/dagger-py-functions/udfs/scalar/sample.py b/dagger-py-functions/udfs/scalar/sample.py
new file mode 100644
index 000000000..6b60f2bd4
--- /dev/null
+++ b/dagger-py-functions/udfs/scalar/sample.py
@@ -0,0 +1,9 @@
+from pyflink.table import DataTypes
+from pyflink.table.udf import udf
+
+
+@udf(result_type=DataTypes.STRING())
+def sample(text):
+    f = open("data/sample_data.txt", "r")
+    data = f.read()
+    return text + data
diff --git a/dagger-py-functions/udfs/scalar/sample_udf.py b/dagger-py-functions/udfs/scalar/sample_udf.py
deleted file mode 100644
index 786ec1eda..000000000
--- a/dagger-py-functions/udfs/scalar/sample_udf.py
+++ /dev/null
@@ -1,9 +0,0 @@
-from pyflink.table import ScalarFunction, DataTypes
-from pyflink.table.udf import udf
-
-class SampleUdf(ScalarFunction):
-
-    def eval(self, text: str):
-        return text + "_added_text"
-
-sample_udf = udf(SampleUdf(), result_type=DataTypes.STRING())
\ No newline at end of file