Question

我有以下方法。我试图将多个变量传递给第一种方法，然后将它们重命名，然后再传递给第二种方法。

def method2(**kwargs):
    # Print kwargs
    for key in kwargs:
        print(key, kwargs[key])

def method1(**kwargs):
    # Need to rename kwargs to pass in to method2 below
    # Keys are method1 kwargs variables and values are method 2 kwargs variables

    rename_dict = {'Val1': 'val_1', 'Val2': 'val_2', 'Val3': 'val_3'}
    new_kwargs = {}

    # The kwargs passed in method 1 need to their values to be set to the 
    # corresponding variables in the rename_dict before they are pass in method 2

    method2(**new_kwargs)

method1(Val1 = 5, Val2 = 6)

# Output desired
val_1 5
val_2 6

Answer 1

您可以通过dict理解更简洁地编写它：

new_kwargs = {rename_dict[key]: value for key, value in kwargs.items()}

Answer 2

要重命名dict键，可以使用以下命令：

Loading execution data file jacoco.exec
Analyzed bundle 'xxx-api' with 884 classes
[WARNING] Rule violated for bundle xxx-api: classes missed count is 36, but expected maximum is 35

此外，您可以使用new_kwargs = {rename_dict[key]:value in key,value for kwargs.items()}在python中迭代字典，该字典返回元组（键，值）的列表，并且可以直接在循环中将其解压缩：

items()

Answer 3

我能够通过在第一种方法中添加for循环来做到这一点

def method2(**kwargs):
    # Print kwargs
    for key in kwargs:
        print(key, kwargs[key])

def method1(**kwargs):
    # Need to rename kwargs to pass in to method2 below
    # Keys are method1 kwargs variables and values are method 2 kwargs variables

    rename_dict = {'Val1': 'val_1', 'Val2': 'val_2', 'Val3': 'val_3'}
    new_kwargs = {}
    for key in kwargs:
        new_kwargs[rename_dict[key]] = kwargs[key]
    print(new_kwargs)
    # The kwargs passed in method 1 need to their values to be set to the 
    # corresponding variables in the rename_dict before they are pass in method 2

    method2(**new_kwargs)

method1(Val1 = 5, Val2 = 6)

# Output

{'val_1': 5, 'val_2': 6}
val_1 5
val_2 6

我没有意识到您可以在python方法中将变量名作为字符串传递。我希望我能帮助尝试做同一件事的人！

重命名** kwargs可以传递给另一种方法

3 个答案: