Merge pull request #189 from onkar-kota/feat/json_to_csv

Added json_to_csv file (issue #188)

Author: DhanushNehru

Json_to_csv convertor/README.MD

@@ -0,0 +1,53 @@
+# json to csv convertor
+
+## Introduction
+
+This Python script allows you to convert json file to csv file and save them to a specified directory. It uses json and csv library to process json files and do manupulations accordingly.
+
+## Usage
+
+### Prerequisites
+
+Before using this script, ensure you have the following:
+
+- Python installed on your system.
+- Required libraries: `csv`, `json`, `python`
+
+### Running the Script
+
+1. Place the json file you want to convert to csv file in the same directory as this script.
+
+2. Replace the `input_file` variable with the name of your json file name with .json extention.
+
+```python
+input_file = 'json_data.json'
+python json_to_csv_with_nested_dict.py
+```
+
+### Information about  .py file
+
+1. `json_to_csv` function
+   
+- This function defines the JSON to CSV converter. It takes three arguments:
+- Args :
+    - **json_data**: A JSON object or list of JSON objects.
+    - **csv_file**: The path to the CSV file to write the data to.
+    - **mapping**: A dictionary mapping JSON field names to CSV column headers.
+- Returns:
+    - None
+
+1. `flatten_json` function
+   
+- This function flattens the JSON data. It works by recursively iterating over the JSON object and converting any nested JSON objects into a single level of key-value pairs.
+  
+- Args :
+    - **obj**: A nested JSON object.
+
+- Returns:
+    - A flattened JSON object.
+
+### Output
+
+The script will create a directory named **csv_data.csv** in the same location as the script. Within this directory.
+
+![Alt text](image.png)

Json_to_csv convertor/image.png

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+import json
+import csv
+
+def json_to_csv(input_json_file, output_csv_file):
+    try:
+        # Read JSON data from input file using utf-8-sig encoding to handle BOM
+        with open(input_json_file, 'r', encoding='utf-8-sig') as json_file:
+            data = json.load(json_file)
+
+        # Get the keys from the first JSON object to use as column headers
+        headers = list(data[0].keys())
+
+        # Write CSV data to output file
+        with open(output_csv_file, 'w', newline='') as csv_file:
+            writer = csv.DictWriter(csv_file, fieldnames=headers)
+
+            # Write column headers to CSV file
+            writer.writeheader()
+
+            # Write JSON data to CSV file
+            for row in data:
+                writer.writerow(row)
+        
+        print(f"Conversion from JSON to CSV completed successfully. CSV file saved as {output_csv_file}")
+
+    except Exception as e:
+        print(f"An error occurred: {str(e)}")
+
+# Example usage
+input_json_file = 'path_to_input.json'
+output_csv_file = 'path_to_output.csv'
+
+json_to_csv(input_json_file, output_csv_file)

Json_to_csv convertor/json_to_csv.py

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+import json
+import csv
+
+def json_to_csv(json_data, csv_file, mapping=None):
+
+  if isinstance(json_data, list):
+    # Flatten nested JSON structures.
+    json_data = [flatten_json(obj) for obj in json_data]
+
+  # Get the column headers from the mapping or from the JSON data itself.
+  column_headers = mapping or json_data[0].keys()
+
+  # Write the CSV file.
+  with open(csv_file, "w", newline="") as f:
+    writer = csv.writer(f)
+    writer.writerow(column_headers)
+    for row in json_data:
+      # Convert nested values to strings.
+      row_values = [str(row.get(column, "")) for column in column_headers]
+      writer.writerow(row_values)
+
+def flatten_json(obj):
+
+  flattened = {}
+  for key, value in obj.items():
+    if isinstance(value, dict):
+      flattened.update(flatten_json(value))
+    elif isinstance(value, list):
+      for item in value:
+        flattened["{}.{}".format(key, item)] = item
+    else:
+      flattened[key] = value
+  return flattened
+
+# sample mapping if needed
+mapping = {
+    "name": "Name",
+    "status": "Status",
+    "date": "Date",
+    "author": "Author",
+    "probability": "Probability",
+    "result": "Result",
+    "final_status": "Final Status",
+    "connected.run_again": "Run Again",
+    "connected.next_test": "Next Test",
+    "connected.next_test_status": "Next Test Status"
+}
+
+
+def main():
+  # Load the JSON data.
+  with open("json_data.json", "r") as json_file:
+    json_data = json.load(json_file)
+
+  # Convert the JSON data to CSV format.
+  json_to_csv(json_data, "csv_data.csv")
+
+if __name__ == "__main__":
+  main()

Json_to_csv convertor/json_to_csv_with_nested_dict.py

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+json
+csv

Json_to_csv convertor/requirements.txt

@@ -3,6 +3,7 @@
 - [Table of Contents](#table-of-contents)
 - [Python Scripts](#python-scripts)
   - [Contributing](#contributing)
+    - [Adding a New Script](#adding-a-new-script)
   - [List of Scripts in Repo](#list-of-scripts-in-repo)
   - [Wall of Contributors](#wall-of-contributors)
 
@@ -67,6 +68,7 @@ More information on contributing and the general code of conduct for discussion
 | JSON to CSV 1                        | [JSON to CSV](https://github.com/DhanushNehru/Python-Scripts/tree/master/JSON2CSV)                                                            | Convert JSON to CSV files.                                                                                          |
 | JSON to CSV 2                        | [JSON to CSV](https://github.com/DhanushNehru/Python-Scripts/tree/master/Json_2_csv)                                                          | Converts a JSON file to a CSV file.                                                                                 |
 | JSON to YAML converter               | [JSON to YAML converter](https://github.com/DhanushNehru/Python-Scripts/tree/master/json_2_yaml)                                              | Converts JSON file to YAML files. A sample JSON is included for testing.                                            |
+| JSON to CSV converter               | [JSON to CSV converter](https://github.com/DhanushNehru/Python-Scripts/tree/master/Json_to_csv_convertor)                                              | Converts JSON file to CSV files. It can convert nested json files as well. A sample JSON is included for testing. 
 | Keylogger                            | [Keylogger](https://github.com/DhanushNehru/Python-Scripts/tree/master/Keylogger)                                                             | Keylogger that can track your keystrokes, clipboard text, take screenshots at regular intervals, and records audio. |
 | Keyword - Retweeting                 | [Keyword - Retweeting](https://github.com/DhanushNehru/Python-Scripts/tree/master/Keyword-retweet-twitter-bot)                                | Find latest tweets containing given keywords and then retweet them.                                                 |
 | LinkedIn Bot                         | [LinkedIn Bot](https://github.com/DhanushNehru/Python-Scripts/tree/master/LinkedIn_Bot)                                                       | Automates the process of searching for public profiles on LinkedIn and exporting the data to an Excel sheet.        |