golang file exitst

golang file exist

// equivalent to Python's `if not os.path.exists(filename)`
if _, err := os.Stat(filename); os.IsNotExist(err) {
    fmt.Printf("no such file or directory: %s", filename)
    return
}
In the above example we are not checking if err != nil because os.IsNotExist(nil) == false anyway.

To check if a file exists,

// equivalent to Python's `if os.path.exists(filename)`
if _, err := os.Stat(filename); err == nil {
    fmt.Printf("file exists; processing...")
    process(filename)
}