從Python子程序運行可執行文件的錯誤

Question

我想從Python 3.5運行可執行文件（線性編程求解器CLP.exe）。

Import subprocess 

exeFile = " C:\\MyPath\\CLP.exe" 
arg1 = "C:\\Temp\\LpModel.mps" 
arg2 = "-max" 
arg3 = " -dualSimplex" 
arg4 = " -printi all" 
arg5 = "-solution t solutionFile.txt" 
subprocess.check_output([exeFile, arg1, arg2, arg3, arg4, arg5], stderr=subprocess.STDOUT, shell=False) 

當我在Eclipse PyDev中運行python文件時，我可以在Eclipse控制檯中看到結果。

但是，解決方案結果未保存在「solutionFile.txt」文件中。

在Eclipse控制檯，我得到：

b'Coin LP version 1.16, build Dec 25 2015 
    command line - C:\\MyPath\\clp.exe C:\\Temp\\LpModel.mps -max  -dualSimplex -printi all -solution C:\\Temp\\solution.txt 

At line 1 NAME   ClpDefau 
At line 2 ROWS 
At line 5 COLUMNS 
At line 8 RHS 
At line 10 BOUNDS 
At line 13 ENDATA 
Problem ClpDefau has 1 rows, 2 columns and 2 elements 
Model was imported from C:\\Temp\\LpModel.mps in 0.001 seconds 
No match for -max - ? for list of commands 
No match for -dualSimplex - ? for list of commands 
No match for -printi all - ? for list of commands 
No match for -solution C:\\Temp\\solution.txt - ? for list of commands 
Presolve 0 (-1) rows, 0 (-2) columns and 0 (-2) elements 
Empty problem - 0 rows, 0 columns and 0 elements 
Optimal - objective value 4 
After Postsolve, objective 4, infeasibilities - dual 0 (0), primal 0 (0) 
Optimal objective 4 - 0 iterations time 0.002, Presolve 0.00 

當我運行在微軟Windows的命令來自命令行shell：

C:\\MyPath\\clp.exe C:\\Temp\\LpModel.mps -max -dualSimplex -printi all -solution C:\\Temp\\solution.txt 

我可以在解決方案文件的結果。而且，如果我在命令行中運行命令，粗體行不會出現在輸出中。

爲什麼solition.txt文件沒有創建，並且如果我從Python子流程運行命令沒有解決方案結果保存到它？

Answer 1

每個空間分離的令牌必須是陣列中的另一個論據subprocess.check_output

exeFile = " C:\\MyPath\\CLP.exe" 
subprocess.check_output([ 
    exeFile, 
    "C:\\Temp\\LpModel.mps", 
    "-max", 
    "-dualSimplex", 
    "-printi", 
    "all", 
    "-solution", 
    "t", 
    "solutionFile.txt"], 
    stderr=subprocess.STDOUT, 
    shell=False)