Trying to exec python in golang using exec.Command(

Question

func execPython(fPath, colName, srv  string) (){
fmt.Println("Inside execPython")
cmd:= "python rfsvmchurn.py"
arg0 := "-fp " + fPath
arg1 := "-srv " + srv
arg2 := "-col " + colName
if err := exec.Command(cmd, arg0, arg1, arg2).Run(); err != nil {
    fmt.Println("Python Execution Error :",err)
}

}

getting error Python Execution Error : exec: "python rfsvmchurn.py": executable file not found in $PATH

Perhaps make rfsvmchurn.py an argument instead of including it as part of cmd. — Warren Weckesser
– Warren Weckesser, Commented Jan 27, 2016 at 2:03
Tried rfsvmchurn.py as argument, it also gives the same error — ssenthil
– ssenthil, Commented Jan 27, 2016 at 2:13
Python Execution Error : exec: "python ": executable file not found in $PATH — ssenthil
– ssenthil, Commented Jan 27, 2016 at 2:22
Try using the full absolute path to the python script. If that works then the python script is not in a place that your program can find it (either in the PATH as the error says or your program's working directory). — Corey Ogburn
– Corey Ogburn, Commented Jan 27, 2016 at 2:36

joshlf · Accepted Answer · 2016-01-27 02:15:35Z

1

Your issue is probably that you're passing flags and their arguments as a single string. You should instead do:

func execPython(fPath, colName, srv  string) (){
    fmt.Println("Inside execPython")
    arg0 := "-fp " + fPath
    arg1 := "-srv " + srv
    arg2 := "-col " + colName
    cmd := exec.Command("python", "rfsvmchurn.py", "-fp", fPath, "-srv", srv, "-col", colName)
    if err := cmd.Run(); err != nil {
        fmt.Println("Python Execution Error :",err)
    }
}

answered Jan 27, 2016 at 2:15

joshlf

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5 Comments

ssenthil Over a year ago

Getting same error Python Execution Error : exec: "python rfsvmchurn.py": executable file not found in $PATH

joshlf Over a year ago

Try ./rfsvmchurn.py instead?

joshlf Over a year ago

Wait, actually, are you sure you passed "python" and "rfsvmchurn.py" as separate arguments? That error makes it sound like you had them as the same string.

ssenthil Over a year ago

Yes I tried like that, and now I am getting this error Python Execution Error : exit status 1

ssenthil Over a year ago

Thanks, its working. the exit status 1 is due to issue in python file

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