Tuples 如何将包含元组字符串的列表转换为元组列表？

我有一个字符串元组列表，如下所示

['(-315.0, 106.0)\n', '(-179.0, -163.0)\n', '(90.0, 76.0)']

我怎样才能把它转换成这个呢

[(-315.0, 106.0), (-179.0, -163.0), (90.0, 76.0)]

我在代码中尝试了

eval（）

，但根本没有改变列表。那密码是

        with open("{}.ctd".format(load), "r") as f:
            data = f.readlines()
            positions = []
            for i in range(len(data)):
                data[i].rstrip()
                print(eval(data[i]))
                positions.append(data[i])
            print(positions)
            draw()

---

您可以使用

ast.literal\u eval

：

import ast
s = ['(-315.0, 106.0)\n', '(-179.0, -163.0)\n', '(90.0, 76.0)']    
res = [ast.literal_eval(d) for d in s]
print(res)

或

for item in data:
    result.append(eval(item))
print(result)

输出

---

[（-315.0106.0），（-179.0，-163.0），（90.0，76.0）]

将元组列表转换为列表的Python代码

# List of tuple initialization 
lt = [(-315.0, 106.0), (-179.0, -163.0), (90.0, 76.0)] 

# using list comprehension 
out = [item for t in lt for item in t] 

# printing output 
print(out) 

# List of tuple initialization 
lt = [(-315.0, 106.0), (-179.0, -163.0), (90.0, 76.0)] 

# using list comprehension 
out = [item for t in lt for item in t] 

# printing output 
print(out)