yaml to Dict and update element like class and save dict to yaml again, python example code

refer to code and example yaml

.

before yaml to run code

a: a-value

b: b-value

c:

d: Nested

e: Values

..

code

pip install yaml, attract

.

import yaml

from attrdict import AttrDict

# Load YAML file

with open('file.yaml', 'r') as f:

data = yaml.safe_load(f)

# Convert to AttrDict for dot notation access

data = AttrDict(data)

# Access elements

print(data.a)

print(data.b)

# Modify elements

data.a = 'new value 2'

data.b = 'another new value 2'

# Convert back to dictionary

data = dict(data)

# Save back to YAML

with open('file.yaml', 'w') as f:

yaml.safe_dump(data, f)

..

.

after yaml running code

a: new value 2

b: another new value 2

c:

d: Nested

e: Values

..

Thank you.

www.marearts.com

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yaml to dict, adding argparse to dict (easydict, yaml)

 

Simple code to adapt and know how to read yaml and convert it to dict.

And one more thing is add argparse param to dict which is made from yaml.

We use easydict for this.

Refer to below code, then you would understand at a glance.

..

from easydict import EasyDict

import yaml

def load_setting(setting):

with open(setting, 'r') as f:

cfg = yaml.load(f, Loader=yaml.FullLoader)

return EasyDict(cfg)

#----------------------------

cfg = load_setting('test.yaml')

print(cfg)

#{'V1': 'abc', 'V2': {'sub': [1, 2, 3]}}

#----------------------------

#----------------------------

import argparse

paser = argparse.ArgumentParser()

args = paser.parse_args("")

args.batch_size=10

args.epoch=10

#----------------------------

cfg.update(vars(args))

print(cfg, type(cfg))

#{'V1': 'abc', 'V2': {'sub': [1, 2, 3]}, 'batch_size': 10, 'epoch': 10} <class 'easydict.EasyDict'>

#----------------------------

..

Thank you.

www.marearts.com

python yaml to dict

 refer to code

..

import yaml

with open('hparams.yaml', 'r') as stream:

try:

parsed_yaml=yaml.safe_load(stream)

print(parsed_yaml, type(parsed_yaml))

except yaml.YAMLError as exc:

print(exc)

..

> example output

{'batch_size': 1000, 'data_path': ['../npy/x_train_coin_eth.npy', '../npy/y_train_coin_eth.npy', '../npy/x_val_coin_eth.npy', '../npy/y_val_coin_eth.npy', '../npy/x_test_coin_eth.npy', '../npy/y_test_coin_eth.npy'], 'encoder_hidden_dims': [4, 2], 'input_dim': 5, 'input_seq': 128, 'learning_rate': 0.0001, 'num_LSTM': 2, 'num_layers': 1} <class 'dict'>

Thank you.
www.marearts.com

No module named 'yaml'

pip install pyyaml