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[英]How can I pass a variable from function to function in Python (Kivy)
[英]Can i pass a variable which contains all parameters for a function to a function in python?If yes, then how?
假設有以下功能:
def write_form(username="", email="", username_error="", email_error="", password_error_one="", password_error_two="" ):
response.out.write(user_signup_form %{ "username": username,
"email": email,
"username_error" : username_error,
"email_error" : email_error,
"password_error_one" : password_error_one,
"password_error_two" : password_error_two })
我想通過以下方式致電:
s='user_username,user_email, email_error="email_error", password_error_one="password_error_1"'
write_form(s)
代替:
write_form(user_username,user_email, email_error="email_error", password_error_one="password_error_1")
有可能這樣做嗎?
您可以使用字典,然后像這樣解壓縮
s={"username":"username",
"email":"a@b.com",
"email_error":"email_error",
"password_error_one":"password_error_1"}
def write_form(username="", email="", username_error="", email_error="",
password_error_one="", password_error_two = ""):
print username, email, email_error, password_error_one, password_error_two
write_form(**s)
“我的函數需要大量參數”的經典解決方案是將這些參數移入一個對象,並使該函數成為該對象的方法。
看起來您正在處理Web表單。 已經有很多庫可以簡化此過程。 值得注意的是,Django框架具有廣泛的庫。
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