Starting from PyYAML version 6.0, calling yaml.load() without specifying the Loader argument is deprecated and will raise a warning. This is a security measure to prevent potential code execution vulnerabilities associated with the use of the old yaml.load() method, which could inadvertently execute arbitrary code from untrusted input.
To address this deprecation warning and improve security, you should explicitly provide a safe YAML loader, such as yaml.SafeLoader:
import yaml
data = """
key: value
"""
parsed_data = yaml.load(data, Loader=yaml.SafeLoader)
print(parsed_data)
Code language: Python (python)In this example, the yaml.SafeLoader ensures that the YAML input is only parsed as data and not executed as code.
Keep in mind that using yaml.unsafe_load() is also an option if you are confident in the source and content of the YAML file, but this is generally discouraged unless you have a specific need for it and are certain of the potential risks.
- Read More: How do I write a YAML file in Python?
Always prioritize security when loading YAML files or any other data from external sources into your Python programs.
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