在我理解之后，我這樣做了：我知道我的方法是錯誤的，但我不知道錯誤發生在哪里
import pandas as pd
class ExcelParser:
def __init__(self):
self.config = []
def extract(self, file_name):
raw_excel=pd.read_excel(file_name,sheet_name=None, na_values= None, keep_default_na=False)
return [x for k, v in raw_excel.items() for x in v[v.columns.intersection(conf)].to_dict(orient='records')]
class BankDataWriterBase:
def __init__(self):
self.input_path = file_name
self.output_path = out_path
self.bank_identifier = bank_id
def write_file(self, file_name):
res = True
return res
if __name__ == "__main__":
conf = list(input("ENTER THE LIST HERE : ").split(','))
file_name = input("Enter the full input path here : ")
out_path = input("Enter the full path for the output : ")
bank_id = input("Enter the Bank ID : ")
obj = ExcelParser()
obj.config = conf
print(obj.extract(file_name))
obj1 = BankDataWriterBase()
obj1.output_path = out_path
obj1.bank_identifier = bank_id
print(obj1.write_file(file_name))
在看到一些答案后，我改變了我的代碼，如下所示
import pandas as pd
class ExcelParser:
def __init__(self):
self.config = []
def extract(self, file_name):
raw_excel=pd.read_excel(file_name,sheet_name=None, na_values= None, keep_default_na=False)
return [x for k, v in raw_excel.items() for x in v[v.columns.intersection(conf)].to_dict(orient='records')]
class BankDataWriterBase:
def __init__(self,file_name,out_path,bank_id):
self.input_path = file_name
self.output_path = out_path
self.bank_identifier = bank_id
def write_file(self, file_name:str):
res = True
return res
class BankDataWriterImpl(BankDataWriterBase):
def __init__(self, file_name, out_path, bank_id):
super().__init__(file_name, out_path, bank_id)
def extrac_json(self, file_name):
pass
if __name__ == "__main__":
conf = list(input("ENTER THE LIST HERE : ").split(','))
file_name = input("Enter the full input path here : ")
out_path = input("Enter the full path for the output : ")
bank_id = input("Enter the Bank ID : ")
obj = ExcelParser()
obj.config = conf
print(obj.extract(file_name))
obj1 = BankDataWriterBase()
obj1.output_path = out_path
obj1.bank_identifier = bank_id
print(obj1.write_file(file_name))
uj5u.com熱心網友回復：
他們的意思是BankDataWriterImpl應該BankDataWriterBase像這樣繼承：
class BankDataWriterBase():
...
class BankDataWriterImpl(BankDataWriterBase):
# this class inherit from parent class BankDataWriterBase
# when a `BankDataWriterBase` object is created, parent.__init__ method is executed.
def extract_jon(self, filename: str):
pass
然后在驅動程式代碼中，您可以創建一個BankDataWriterImpl()物件而不是BankDataWriterBase()像您所做的那樣。
它將__init__從父級繼承其方法并具有新extract_json方法。
您沒有提到的另一個問題來自BankDataWriterBase屬性。您的代碼假定存在 3 個全域變數。當您創建物件時，它們應該傳遞給類，如下所示：
但是在創建BankSomething物件時要小心，因為現在需要這些引數：
class BankDataWriterBase:
def __init__(self, input_path, output_path, bank_identifier):
self.input_path = input_path
self.output_path = output_path
self.bank_identifier = bank_identifier
...
obj1 = BankDataWriterImpl(input_path, output_path, bank_identifier)
評論后編輯：但我的領導說只為 BankDataWriterBase()
class BankDataWriterBase:
def __init__(self, input_path, output_path, bank_identifier):
self.input_path = input_path
self.output_path = output_path
self.bank_identifier = bank_identifier
...
def write_file(file_name: str):
pass
obj = BankDataWriterBase(input_path, output_path, bank_identifier)
# setattr add a new attribute to `obj`, first argument is the object,
# second argument its name (obj.name)
# third argument the attribute itself
# here we attach a new method `obj.write_file` to the object
setattr(obj, 'write_file', write_file)
# now you can use it like that :
# this line would have raised an exception before the `setattr` line
obj.write_file("correct_file_path")
uj5u.com熱心網友回復：
沒有實作的結構：
class Task:
def __init__(self): # initialise all the instance variables (None in this case)
pass # this this might need to be empty
def run(self) -> None:
pass
class BankDataWriterBase:
def __init__(self, file_name: str, out_path: str, bank_id: str):
# you might wan't to set default values: file_name: str = "" for example
self.input_path = file_name
self.output_path = out_path
self.bank_identifier = bank_id
def write_file(self, file_name) -> str:
pass
class BankDataWriterImpl(BankDataWriterBase):
# inherit from BankDataWriterBase, all functions and variables from BankDataWriterBase are now callable from this class
# as said in the other answer, this will be inherited so you don't need to have this
def __init__(self, file_name: str, out_path: str, bank_id: str):
super().__init__(file_name, out_path, bank_id) # call __init__ method of all the superclasses (in this case only BankDataWriterBase)
def extract_json(self, filename: str):
pass
轉載請註明出處，本文鏈接：https://www.uj5u.com/shujuku/409724.html
標籤：