realpython
diff --git a/‎33_country_code.py
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+import csv
+import sys
+import json
+
+"""
+Example usage:
+
+$ python 33_country_code.py 33_sample_csv.csv 33_country_codes.json
+"""
+
+
+def get_data(csv_file, json_file):
+    countryCodes = []
+    countryNames = []
+    continentNames = []
+    with open(csv_file, 'rt') as file_one:
+        reader = csv.reader(file_one)
+        with open(json_file) as file_two:
+            json_data = json.load(file_two)
+            all_countries = json_data["country"]
+            for csv_row in reader:
+                for json_row in all_countries:
+                    if csv_row[0] == json_row["countryCode"]:
+                        countryCodes.append(json_row["countryCode"])
+                        countryNames.append(json_row["countryName"])
+                        continentNames.append(json_row["continentName"])
+
+    return [
+        countryCodes,
+        countryNames,
+        continentNames
+    ]
+
+
+def write_data(array_of_arrays):
+    with open('data.csv', 'wt') as csv_out:
+        writer = csv.writer(csv_out)
+        rows = zip(
+            array_of_arrays[0],
+            array_of_arrays[1],
+            array_of_arrays[2]
+        )
+        for row in rows:
+            writer.writerow(row)
+
+
+if __name__ == '__main__':
+    csv_file_name = sys.argv[1]
+    json_file_name = sys.argv[2]
+    data = get_data(csv_file_name, json_file_name)
+    write_data(data)