diff --git a/.github/workflows/python-app.yaml b/.github/workflows/python-app.yaml
new file mode 100644
index 00000000..30effcdd
--- /dev/null
+++ b/.github/workflows/python-app.yaml
@@ -0,0 +1,57 @@
+# This workflow will install Python dependencies, run tests and lint with a single version of Python
+# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-python
+
+name: Python application
+
+on:
+  push:
+    branches: [ "ci" ]
+  pull_request:
+    branches: [ "ci" ]
+
+permissions:
+  contents: read
+
+jobs:
+  build:
+    runs-on: ubuntu-20.04
+    steps:
+    - uses: actions/checkout@v3
+    - name: Set up Python 2.7.18
+      uses: actions/setup-python@v3
+      with:
+        python-version: "2.7.18"
+    - name: Install OneFLUX
+      run: |
+        python -m pip install --upgrade pip
+        pip install setuptools==44.1.1 wheel pytest
+        # pip install flake8 pytest
+        # if [ -f frozen-requirement.txt ]; then pip install -r frozen-requirements.txt; fi
+        make
+    - name: Get data
+      run: |
+        mkdir datadir
+        # get necessary data
+        wget ftp://ftp.fluxdata.org/.ameriflux_downloads/.test/US-ARc_sample_input.zip
+        wget ftp://ftp.fluxdata.org/.ameriflux_downloads/.test/US-ARc_sample_output.zip
+        unzip US-ARc_sample_input.zip -d ./datadir/test_input/
+        unzip US-ARc_sample_output.zip -d ./datadir/test_output/
+    - name: Run OneFLUX partitioning_nt
+      run: |
+        # copy necessary output data to force partitioning_nt to run
+        cp -r ./datadir/test_output/US-ARc_sample_output/02_qc_auto/ ./datadir/test_input/US-ARc_sample_input/
+        cp -r ./datadir/test_output/US-ARc_sample_output/07_meteo_proc/ ./datadir/test_input/US-ARc_sample_input/
+        cp -r ./datadir/test_output/US-ARc_sample_output/08_nee_proc/ ./datadir/test_input/US-ARc_sample_input/
+        python runoneflux.py partition_nt ./datadir/test_input/ US-ARc US-ARc_sample_input 2005 2006 -l fluxnet_pipeline_US-ARc.log --recint hh
+    - name: Run pytest
+      run: |
+        pytest oneflux/tools/partition_nt.py
+    # - 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
+    #     # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
+    #     flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
+    # - name: Test with pytest
+    #   run: |
+    #     pytest
diff --git a/Makefile b/Makefile
index 58665241..4d258567 100644
--- a/Makefile
+++ b/Makefile
@@ -6,7 +6,7 @@ buildpy:
 	@echo "Installing Python dependencies..."
 ifeq ($(PYPACKAGE),pip)
 	@echo "Using pip to install dependencies..."
-	pip install -r requirements.txt
+	pip install -r frozen-requirements.txt
 else
 ifeq ($(PYPACKAGE),conda)
 	@echo "Using conda to install dependencies..."
diff --git a/frozen-requirements.txt b/frozen-requirements.txt
new file mode 100644
index 00000000..d92e10cb
--- /dev/null
+++ b/frozen-requirements.txt
@@ -0,0 +1,14 @@
+backports.functools-lru-cache==1.6.4
+cycler==0.10.0
+kiwisolver==1.1.0
+matplotlib==2.2.5
+pandas==0.20.1
+patsy==0.5.2
+pyparsing==2.4.7
+python-dateutil==2.8.2
+pytz==2022.4
+scipy==1.2.3
+six==1.16.0
+statsmodels==0.8.0
+subprocess32==3.5.4
+setuptools==44.1.1
diff --git a/oneflux/tools/partition_nt.py b/oneflux/tools/partition_nt.py
index 92034b8d..60240df2 100644
--- a/oneflux/tools/partition_nt.py
+++ b/oneflux/tools/partition_nt.py
@@ -12,6 +12,7 @@
 '''
 import sys
 import os
+import glob
 import logging
 import time
 import numpy
@@ -19,6 +20,7 @@
 import socket
 import numpy
 import calendar
+import pytest
 
 from datetime import datetime
 from io import StringIO
@@ -133,6 +135,56 @@ def run_partition_nt(datadir, siteid, sitedir, years_to_compare,
     remove_previous_run(datadir=datadir, siteid=siteid, sitedir=sitedir, python=py_remove_old, prod_to_compare=prod_to_compare, perc_to_compare=perc_to_compare, years_to_compare=years_to_compare)
     run_python(datadir=datadir, siteid=siteid, sitedir=sitedir, prod_to_compare=prod_to_compare, perc_to_compare=perc_to_compare, years_to_compare=years_to_compare)
 
+@pytest.fixture
+def get_data():
+    pass
+
+def equal_csv(csv_1, csv_2):
+    with open(csv_1, 'r') as t1, open(csv_2, 'r') as t2:
+        fileone = t1.readlines()
+        filetwo = t2.readlines()
+        for line in filetwo:
+            if line not in fileone:
+                return False
+    
+# TODO: deal with fixtures for running nt_test
+# step 10
+def test_run_partition_nt():
+    datadir = "./datadir/test_input"
+    data_output = "./datadir/test_output"
+    siteid = "US-ARc"
+    sitedir = "US-ARc_sample_input"
+    years = [2005] # years = [2005, 2006]
+    PROD_TO_COMPARE = ['c', 'y']
+    # PERC_TO_COMPARE = ['1.25', '3.75',]
+    PERC_TO_COMPARE = ['1.25',]
+    remove_previous_run(datadir=datadir, siteid=siteid, sitedir=sitedir, python=True, 
+                        prod_to_compare=PROD_TO_COMPARE, perc_to_compare=PERC_TO_COMPARE,
+                        years_to_compare=years)
+
+    run_python(datadir=datadir, siteid=siteid, sitedir=sitedir, prod_to_compare=PROD_TO_COMPARE,
+               perc_to_compare=PERC_TO_COMPARE, years_to_compare=years)
+    
+    # now do simple check of output 
+    rootdir = os.path.join(datadir, sitedir, "10_nee_partition_nt")
+    nee_y_files = glob.glob(os.path.join(rootdir, "nee_y_1.25_US-ARc_2005*"))
+    ref_output = os.path.join(data_output, sitedir, "10_nee_partition_nt")
+    ref_y_files = glob.glob(os.path.join(ref_output, "nee_y_1.25_US-ARc_2005*"))
+    
+    # log.info(nee_y_files)
+    # log.info(compare_y_files)
+    for f, b in zip(nee_y_files, ref_y_files):
+        if not equal_csv(f, b):
+            return False
+
+    # glob the files with this root
+    # for file in glob.glob(nee_y_files):
+    #     print(file)
+    #     log.info(file)
+    #     if not equal_csv(file, )
+    # with open('saved/nee_y_1.25_US-ARc_2005.csv', 'r') as t1, open(nee_y, 'r') as t2:
+
+    
 
 if __name__ == '__main__':
     raise ONEFluxError('Not executable')
diff --git a/oneflux_steps/Makefile b/oneflux_steps/Makefile
index d56115bf..a5e22cc9 100644
--- a/oneflux_steps/Makefile
+++ b/oneflux_steps/Makefile
@@ -31,7 +31,7 @@ CC := gcc -O3
 MKDIR = mkdir -p
 
 # copy file command (verbose, keep file metadata)
-COPY = cp -av
+COPY = cp -v
 
 SRCDIR := $(shell pwd)/
 TGTDIR := ${HOME}/bin/oneflux/
diff --git a/pytest.ini b/pytest.ini
new file mode 100644
index 00000000..f5276a23
--- /dev/null
+++ b/pytest.ini
@@ -0,0 +1,5 @@
+[pytest]
+log_cli = 1
+log_cli_level = INFO
+log_cli_format = %(asctime)s [%(levelname)8s] %(message)s (%(filename)s:%(lineno)s)
+log_cli_date_format=%Y-%m-%d %H:%M:%S