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using language: Python

Showing 5 snippets

Reset default python log handlers

import logging

formatter = logging.Formatter('FOO: %(message)s')

root_logger = logging.getLogger()
root_logger.setLevel(logging.INFO)

# This is the key line that removes the double logging
...

By xtream1101 • Created 2025-03-02 15:43 • Updated 2025-03-04 18:33

Django graphene mutation input validation

import graphene

class ScratchpadMutation(graphene.relay.ClientIDMutation):
    class Input:
        created_by = graphene.String(required=True)
        foobar = graphene.String()

test = graphene.String()
    test2 = graphene.String()

@classmethod
    def validate_created_by(cls, value: str) -> str:
        if "foo" in value:
            raise ValueError("No foo's allowed")
        return value.strip().upper()

@classmethod
    def validate_combinations(cls, input: dict) -> dict:
        if input.get("created_by") == "TEST" and input.get("foobar") == "TEST":
            raise ValueError("Cannot have both created_by and foobar as TEST")

return input

@classmethod
    def validate_inputs(cls, input: dict) -> dict:
        validated_inputs = input.copy()
        for key, value in input.items():
            validation_method = f"validate_{key}"
            # Check if the method exists and run if so
            if hasattr(cls, validation_method):
                method = getattr(cls, validation_method)
                validated_inputs[key] = method(value)

# Run other validations on all the inputs after the pre-validate/cleaning
        validated_inputs = cls.validate_combinations(validated_inputs)

return validated_inputs

@classmethod
    def mutate_and_get_payload(cls, root, info, **input):
        # Need to update since not all fields may have a validation method
        input = cls.validate_inputs(input)
        
        # do somthing with the inputs here
        
        return ScratchpadMutation(
            test=input.get("created_by"), test2=input.get("foobar")
        )

Python Public django graphene graphql validation

import graphene

class ScratchpadMutation(graphene.relay.ClientIDMutation):
    class Input:
        created_by = graphene.String(required=True)
        foobar = graphene.String()

    test = g...

By xtream1101 • Created 2025-02-06 14:13 • Updated 2025-02-06 14:13

Try, try again - Multiple try/except blocks in a flat format

Python Public exceptions

data = {'some_key': 'key value'}
key_data = None
for _ in range(1):
    try:
        key_data = data['someKey']
    except Exception: pass
    else: break  # It worked

    try:
        key_d...

By xtream1101 • Created 2025-02-06 13:35 • Updated 2025-02-06 13:43

Multi key sort on a list of dicts

Python Public sorting

data = [
    {'name': 'Alice', 'age': 25, 'city': 'New York'},
    {'name': 'Bob', 'age': 30, 'city': 'London'},
    {'name': 'Charlie', 'age': 20, 'city': 'New York'}
]

# Sort by 'city' first,...

By xtream1101 • Created 2025-02-06 13:16 • Updated 2025-02-06 13:27

Python command test

Python Public

import sys

if __name__ == "__main__":
	print(f"args passed in: {sys.argv[1:]}")

By xtream1101 • Created 2025-02-06 05:12 • Updated 2025-02-06 05:12

Showing 5 snippets

Reset default python log handlers

Python Public aws lambda logging

Snippet

import logging

formatter = logging.Formatter('FOO: %(message)s')

root_logger = logging.getLogger()
root_logger.setLevel(logging.INFO)

# This is the key line that removes the double logging
root_logger.handlers.clear()

# Must add a custom logger back otherwise there will be no log output
sys_stream = logging.StreamHandler()
sys_stream.setFormatter(formatter)
root_logger.addHandler(sys_stream)


logger = logging.getLogger(__name__)

Description

AWS lambdas seem to add their own custom logging to the python logger, causing all logs to output twice when also adding your own custom logger. You may not see any change when running this locally, but it does make a difference when running in a aws lambda.

By xtream1101 • Created 2025-03-02 15:43 • Updated 2025-03-04 18:33