如何附加For循环中所有结果的列表？

Question

我正在努力使我的一个功能发挥作用。这是它的基础：

#for example:
data=[(b),(c),(d),(e)]

results=[]
for x in data: #this goes through each row of the data
    # body_code executes. This part is mostly just changing types, etc
    a=final_body_code
    results.append(a)
print results

#output should be: results=[(b),(c),(d),(e)] #After changing types of b,c,d,e etc.

#The body of the code does not matter at this point, it's just the appending which i'm
#struggling with. 

但是，当我这样做时，它似乎没有将a附加到结果列表中。说到Python我是新手，所以请帮忙！

Answer 1

你应该加上例子。

可能您在a=final_body_code中有问题，结果是None

不过，使用list comprehension对@Mrinal Wahal answer进行了一些改进：

results = [final_body_code(i) for i in data]

Answer 2

我想这是你愿意做的。

data=[(b),(c),(d),(e)]

results=[]

for x in data:
    results.append(x)

print results

Answer 3

data = [b, c, d, e]

results = []

results.extend(final_body_code(i) for i in data)

return results