生成運行Python函數與字符串名稱

Question

foo.py調用它們

def foo_001(para): tmp = para + 2 return tmp 
def foo_002(para): tmp = para * 2 return tmp 
def foo_003(para): tmp = para/2 return tmp 

... 
def foo_100(para): tmp = #complex algo, return tmp 

main.py

from foo import * 
fun_name = ["foo_001","foo_002","foo_002" ... "foo_100"] 

src = 1 
rzt = [] 
for i in fun_name: 
    rzt.extent(eval(i)(src)) 

這裏是我的問題：

1. 我可以得到fun_name列表在運行時，因爲我想將它們保存在文本文件中？

2. 我發現有功能定義中的常見部分是「tmp = #algo」，我可以從那些定義中提取它們嗎？我可以在運行時定義這些函數嗎？我想是這樣的：

foo.py

def foo_factory(): 
    # in somehow 
    return adict  #function_name/function pair 

template = [ 
["foo_001","tmp = para + 2"], 
["foo_002","tmp = para * 2"], 
["foo_002","tmp = para + 2"], 
... 
["foo_100","tmp = #complex algo"] 

main.py

from foo import * 
dic = foo_factory(template) 
fun_name = dic.keys() 
src = 1 
rzt = [] 
for i in fun_name: 
    rzt.extent(eval(i)(src)) 
     #or 
    rzt.extent(dic(i)()) 

Answer 1

fnmap = { 
    'foo_001': foo_001, 
    'foo_002': foo_002, 
    'foo_003': foo_003, 
} 

print fnmap['foo_002'](3) 

使用裝飾枚舉功能，如果你不喜歡輸入整個地圖。