用Python for循环更改变量名称 [英] Changing variable names with Python for loops

问题描述

 <$ c $ 
 
 （3）
 group + i = self.getGroup（selected，header + i）
  

，以便变量的名称改变以适应数据。谢谢！

〜Sam

解决方案

单独的变量。例如

  d = {} 
在范围内（3）：
d [group + str（i）] = self.getGroup（selected，header + i）
  

如果你坚持实际上修改局部变量，你可以使用 locals 函数：

  for我在范围（3）：
 locals（）[group+ str（i）] = self.getGroup（selected，header + i）
   setattr  $ b 
 / code> function 
 对于组（3）中的我：
 setattr（self，group + str（i），self.getGroup（selected，header + i）
  
当然，我假设所有这些例子，你不只是想要一个列表：
 
 $ $ p $  groups = [self.getGroup（i ，header + i）for i in range（3）] 
  

I was just wondering if anyone knew of a way to change variable names based off of a for loop for something like this:

for i in range(3)
     group+i=self.getGroup(selected, header+i)

so that the names of the variables change to accomodate the data. Thanks!

~Sam

解决方案

You probably want a dict instead of separate variables. For example

d = {}
for i in range(3):
    d["group" + str(i)] = self.getGroup(selected, header+i)

If you insist on actually modifying local variables, you could use the locals function:

for i in range(3):
    locals()["group"+str(i)] = self.getGroup(selected, header+i)

On the other hand, if what you actually want is to modify instance variables of the class you're in, then you can use the setattr function

for i in group(3):
    setattr(self, "group"+str(i), self.getGroup(selected, header+i)

And of course, I'm assuming with all of these examples that you don't just want a list:

groups = [self.getGroup(i,header+i) for i in range(3)]

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