Tasks To Automate With Python

1 Check JSON

Read a file and check either file contains a valid JSON data or not.

Program

import os
import sys
import json

if len(sys.argv) > 1:
    if os.path.exists(sys.argv[1]):
        file = open(sys.argv[1], "r")
        json.load(file)
        file.close()
        print("Validate JSON!")
    else:
        print(sys.argv[1] + " not found")
else:
    print("Usage: check_json.py <file>")

Run the Script

python3 check_json.py test.json

2 Check YAML

Read a file and check either file contains a valid YAML data or not.

import os
import sys
import yaml

if len(sys.argv) > 1:
    if os.path.exists(sys.argv[1]):
        file = open(sys.argv[1], "r")
        yaml.safe_load(file.read())
        file.close()
        print("Validate YAML!")
    else:
        print(sys.argv[1] + " not found")
else:
    print("Usage: check_yaml.py <file>")

Run the Script

python3 check_yaml.py test.yaml

3 Convert JSON to YAML

Read a json file and convert json data into the yaml format and store into the output yaml file.

import json
import os
import sys
import yaml

# Checking there is a file name passed
if len(sys.argv) > 1:
    # Opening the file
    if os.path.exists(sys.argv[1]):
        source_file = open(sys.argv[1], "r")
        source_content = json.load(source_file)
        source_file.close()
    # Failikng if the file isn't found
    else:
        print("ERROR: " + sys.argv[1] + " not found")
        exit(1)
# No file, no usage
else:
    print("Usage: json2yaml.py <source_file.json> [target_file.yaml]")

# Processing the conversion
output = yaml.dump(source_content)

# If no target file send to stdout
if len(sys.argv) < 3:
    print(output)
# If the target file already exists exit
elif os.path.exists(sys.argv[2]):
    print("ERROR: " + sys.argv[2] + " already exists")
    exit(1)
# Otherwise write to the specified file
else:
    target_file = open(sys.argv[2], "w")
    target_file.write(output)
    target_file.close()

Run the Script

python3 json2yaml.py input_file.json output_file.yaml

4 Convert YAML to JSON

Read a yaml file and convert yaml data into the json format and store into the output json file.

import json
import os
import sys
import yaml

# Checking there is a file name passed
if len(sys.argv) > 1:
    # Opening the file
    if os.path.exists(sys.argv[1]):
        source_file = open(sys.argv[1], "r")
        source_content = yaml.safe_load(source_file)
        source_file.close()
    # Failikng if the file isn't found
    else:
        print("ERROR: " + sys.argv[1] + " not found")
        exit(1)
# No file, no usage
else:
    print("Usage: yaml2json.py <source_file.yaml> [target_file.json]")

# Processing the conversion
output = json.dumps(source_content)

# If no target file send to stdout
if len(sys.argv) < 3:
    print(output)
# If the target file already exists exit
elif os.path.exists(sys.argv[2]):
    print("ERROR: " + sys.argv[2] + " already exists")
    exit(1)
# Otherwise write to the specified file
else:
    target_file = open(sys.argv[2], "w")
    target_file.write(output)
    target_file.close()

Run the Script

python3 yaml2json.py input_file.yaml output_file.json