如何在Python中用逗号过滤列表并将值附加到动态变量

发布于 2025-01-12 02:14:31 字数 2068 浏览 0 评论 0原文

我有一个从数据库检索的列表，它有两个值：

list = [('[email protected]', '[email protected]\n', '{ "header1": "Subject", "header2": "Text"}', ' { "condition1": "Equal", "condition2": "Contain"}', '{ "parameter1": "hi1", "parameter2": "hi2" || "testNested"}', '{ "subjectP1": "WorkedDynamicWord","wordP1": "hi1","subjectP2": "WorkedDynamicWord2", "wordP2": "Dynamic word"}'), ('[email protected]', '[email protected]\n', '{ "header1": "Subject"}', '{ "condition1": "Contain"}', '{ "parameter1": "haha"}', None)]

如您所见，两个不同的值用 ), 处的逗号区分。那么我如何分离这两个值并插入到每个列表值的变量中？

例如（预期输出）：

variableA =  ('[email protected]', '[email protected]\n', '{ "header1": "Subject", "header2": "Text"}', ' { "condition1": "Equal", "condition2": "Contain"}', '{ "parameter1": "hi1", "parameter2": "hi2" || "testNested"}', '{ "subjectP1": "WorkedDynamicWord","wordP1": "hi1","subjectP2": "WorkedDynamicWord2", "wordP2": "Dynamic word"}')

variableB = ('[email protected]', '[email protected]\n', '{ "header1": "Subject"}', '{ "condition1": "Contain"}', '{ "parameter1": "haha"}', None)

如果数据库有第三个值，则变量将动态添加。例如，变量C将存储第三个值，如果有第四个值，则生成变量D。

原文

I have a list that i retrieve from database and it has two value:

list = [('[email protected]', '[email protected]\n', '{ "header1": "Subject", "header2": "Text"}', ' { "condition1": "Equal", "condition2": "Contain"}', '{ "parameter1": "hi1", "parameter2": "hi2" || "testNested"}', '{ "subjectP1": "WorkedDynamicWord","wordP1": "hi1","subjectP2": "WorkedDynamicWord2", "wordP2": "Dynamic word"}'), ('[email protected]', '[email protected]\n', '{ "header1": "Subject"}', '{ "condition1": "Contain"}', '{ "parameter1": "haha"}', None)]

As you can see, the two different value is differentiate with the comma at ),. So how can i seperate these two value and insert to a variable for each list value?

For example (expected output):

variableA =  ('[email protected]', '[email protected]\n', '{ "header1": "Subject", "header2": "Text"}', ' { "condition1": "Equal", "condition2": "Contain"}', '{ "parameter1": "hi1", "parameter2": "hi2" || "testNested"}', '{ "subjectP1": "WorkedDynamicWord","wordP1": "hi1","subjectP2": "WorkedDynamicWord2", "wordP2": "Dynamic word"}')

variableB = ('[email protected]', '[email protected]\n', '{ "header1": "Subject"}', '{ "condition1": "Contain"}', '{ "parameter1": "haha"}', None)

The variable will be add dynamically if the database has third value. For example, variableC will store the third value and variableD will be generate if there is fourth value.

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一杯敬自由 2025-01-19 02:14:31

您可以这样创建变量

data = [('[email protected]', '[email protected]\n', '{ "header1": "Subject", "header2": "Text"}', ' { "condition1": "Equal", "condition2": "Contain"}', '{ "parameter1": "hi1", "parameter2": "hi2" || "testNested"}', '{ "subjectP1": "WorkedDynamicWord","wordP1": "hi1","subjectP2": "WorkedDynamicWord2", "wordP2": "Dynamic word"}'), ('[email protected]', '[email protected]\n', '{ "header1": "Subject"}', '{ "condition1": "Contain"}', '{ "parameter1": "haha"}', None)]

for i,l in enumerate(data):
    vars()[f'variable{i + 1}'] = l

print(variable1, variable2)

You can create variables as such

data = [('[email protected]', '[email protected]\n', '{ "header1": "Subject", "header2": "Text"}', ' { "condition1": "Equal", "condition2": "Contain"}', '{ "parameter1": "hi1", "parameter2": "hi2" || "testNested"}', '{ "subjectP1": "WorkedDynamicWord","wordP1": "hi1","subjectP2": "WorkedDynamicWord2", "wordP2": "Dynamic word"}'), ('[email protected]', '[email protected]\n', '{ "header1": "Subject"}', '{ "condition1": "Contain"}', '{ "parameter1": "haha"}', None)]

for i,l in enumerate(data):
    vars()[f'variable{i + 1}'] = l

print(variable1, variable2)

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内心荒芜 2025-01-19 02:14:31

Python 的 globals() 函数返回一个包含当前全局符号表的字典，因此您可以添加具有自定义名称的变量：

data = [('[email protected]', '[email protected]\n', '{ "header1": "Subject", "header2": "Text"}', ' { "condition1": "Equal", "condition2": "Contain"}', '{ "parameter1": "hi1", "parameter2": "hi2" || "testNested"}', '{ "subjectP1": "WorkedDynamicWord","wordP1": "hi1","subjectP2": "WorkedDynamicWord2", "wordP2": "Dynamic word"}'), ('[email protected]', '[email protected]\n', '{ "header1": "Subject"}', '{ "condition1": "Contain"}', '{ "parameter1": "haha"}', None)]

for iVariable, variable in enumerate(data):
    globals()["variable"+str(iVariable+1)] = variable
    
print("Variable 1 : ", variable1)
print("Variable 2 : ",variable2)

输出为：

Variable 1 :  ('[email protected]', '[email protected]\n', '{ "header1": "Subject", "header2": "Text"}', ' { "condition1": "Equal", "condition2": "Contain"}', '{ "parameter1": "hi1", "parameter2": "hi2" || "testNested"}', '{ "subjectP1": "WorkedDynamicWord","wordP1": "hi1","subjectP2": "WorkedDynamicWord2", "wordP2": "Dynamic word"}')
Variable 2 :  ('[email protected]', '[email protected]\n', '{ "header1": "Subject"}', '{ "condition1": "Contain"}', '{ "parameter1": "haha"}', None)

如果您更喜欢使用字母（variableA、variableB、...），请替换 str (iVariable+1) by chr(ord('@')+iVariable+1) 会将数字转换为相应的字母字符。

注意：不建议创建此类变量，您可以重新考虑是否需要它，请参阅以下链接了解更多详细信息和替代方案：
如何创建可变变量？

Python’s globals() function returns a dictionary containing the current global symbol table, so you can add your variables with custom names:

data = [('[email protected]', '[email protected]\n', '{ "header1": "Subject", "header2": "Text"}', ' { "condition1": "Equal", "condition2": "Contain"}', '{ "parameter1": "hi1", "parameter2": "hi2" || "testNested"}', '{ "subjectP1": "WorkedDynamicWord","wordP1": "hi1","subjectP2": "WorkedDynamicWord2", "wordP2": "Dynamic word"}'), ('[email protected]', '[email protected]\n', '{ "header1": "Subject"}', '{ "condition1": "Contain"}', '{ "parameter1": "haha"}', None)]

for iVariable, variable in enumerate(data):
    globals()["variable"+str(iVariable+1)] = variable
    
print("Variable 1 : ", variable1)
print("Variable 2 : ",variable2)

The output is:

Variable 1 :  ('[email protected]', '[email protected]\n', '{ "header1": "Subject", "header2": "Text"}', ' { "condition1": "Equal", "condition2": "Contain"}', '{ "parameter1": "hi1", "parameter2": "hi2" || "testNested"}', '{ "subjectP1": "WorkedDynamicWord","wordP1": "hi1","subjectP2": "WorkedDynamicWord2", "wordP2": "Dynamic word"}')
Variable 2 :  ('[email protected]', '[email protected]\n', '{ "header1": "Subject"}', '{ "condition1": "Contain"}', '{ "parameter1": "haha"}', None)

If you prefer to have letters (variableA, variableB, ...), replace str(iVariable+1) by chr(ord('@')+iVariable+1) that will convert the number to corresponding alphabetic character.

Note: creating such variables is not recommended and you may reconsider your need for it, see the following link for more details and alternatives:
How do I create variable variables?

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