Question

以下代码在ubuntu发行版上正常工作，但代码在windows中生成错误

ValueError: not enough values to unpack (expected 3, got 2)

import sys
strcmd = "curve -d 3"
f = open("cam_data.dex","r")
for line in f:
 (x,y,z)=line.split(",")
 strcmd = strcmd+" -p"+" "+x+" "+y+" "+z.rstrip()

print(strcmd)
print("\nDONE\n")

我无法找到错误是什么，对此有任何帮助将非常有帮助

Answer 1

问题：

(x,y,z)=line.split(",")这将返回一个无法映射到三个变量

的列表

固定代码

您可以这样做：

import sys
strcmd = "curve -d 3"
f = open("cam_data.dex","r")
for line in f:
    x=" ".join(line.split(","))
    strcmd = strcmd+" -p"+" "+x

print(strcmd)
print("\nDONE\n")

输出：

curve -d 3 -p 1 2 3 3 2 1 4 5 6 6 5 4 7 8 9 9 8 7

Answer 2

您需要在split上执行f，具体取决于分隔符并对其进行迭代。

import sys
strcmd = "curve -d 3"
f = open("cam_data.dex","r")
for line in f.split():
    (x,y,z)=line.split(",")
    strcmd = strcmd+" -p"+" "+x+" "+y+" "+z.rstrip()

print(strcmd)
print("\nDONE\n")
# curve -d 3 -p 1 2 3 -p 3 2 1 -p 4 5 6 -p 6 5 4 -p 7 8 9 -p 9 8 7                                                    
# DONE

python中的值解包错误（windows）

2 个答案: