用于LSTM模型的KeyError '-f‘Python

data = {'key1': 'value1', 'key2': 'value2'}  # 示例数据字典

if '-f' in data:
    value = data['-f']
else:
    print("Key '-f' not found in data dictionary.")
    value = None  # 或者提供一个默认值

data = {'key1': 'value1', 'key2': 'value2'}  # 示例数据字典

value = data.get('-f', None)  # 如果'-f'不存在，返回None
if value is None:
    print("Key '-f' not found in data dictionary.")

import json

try:
    with open('data.json', 'r') as file:
        data = json.load(file)
except FileNotFoundError:
    print("Data file not found.")
except json.JSONDecodeError:
    print("Error decoding JSON data.")

if '-f' in data:
    value = data['-f']
else:
    print("Key '-f' not found in data dictionary.")
    value = None

data = {'key1': 'value1', 'key2': 'value2'}  # 示例数据字典

try:
    value = data['-f']
except KeyError as e:
    print(f"KeyError: {e}")
    value = None