Python Script to convert a file from YAML to JSON
Convert a file from yaml to json using Python
In this blog post you'll learn how to convert a YAML file to JSON file using python.
What is YAML?
YAML (a recursive acronym for "YAML Ain't Markup Language") is a human-readable data-serialization language. It is commonly used for configuration files and in applications where data is being stored or transmitted. YAML targets many of the same communications applications as Extensible Markup Language but has a minimal syntax which intentionally differs from SGML.
What is JSON?
JSON is an open standard file format and data interchange format that uses human-readable text to store and transmit data objects consisting of attribute–value pairs and arrays. It is a very common data format, with a diverse range of applications, one example being web applications that communicate with a server.
# yaml_json_converter.py import json import os import sys import yaml # Checking there is a file name passed if len(sys.argv) > 1: # Checking is the file exists in the given path if os.path.exists(sys.argv): #Opening the file source_file = open(sys.argv, "r") source_content = yaml.safe_load(source_file) source_file.close() # Failing if the file isn't found else: print("ERROR: " + sys.argv + " not found") exit(1) # No file, no usage else: print("Usage: yaml2json.py <source_file.yaml> [target_file.json]") # Converting the YAML content to JSON output = json.dumps(source_content) # If no target file if len(sys.argv) < 3: print("ERROR: Required two arguments") # Checking is file already exists elif os.path.exists(sys.argv): print("ERROR: " + sys.argv + " already exists") exit(1) # Otherwise write to the specified file else: target_file = open(sys.argv, "w") target_file.write(output) target_file.close()
You have to pass two arguments while running this script. 1st one is path to source file (YAML) and the 2nd argument is path to target file (JSON).
python yaml_json_converter.py /path/to/source/file.yaml /path/to/target/file.json
Thank you for reading. Please comment your feedback and suggestions.