Find correct python executable

pkg/scraper/script.go

@@ -30,6 +30,13 @@ func newScriptScraper(scraper scraperTypeConfig, config config, globalConfig Glo
 func (s *scriptScraper) runScraperScript(inString string, out interface{}) error {
 	command := s.scraper.Script
 
+	if command[0] == "python" {
+		executable, err := findPythonExecutable()
+		if err == nil {
+			command[0] = executable
+		}
+	}
+
 	cmd := exec.Command(command[0], command[1:]...)
 	cmd.Dir = filepath.Dir(s.config.path)
 
@@ -184,3 +191,19 @@ func (s *scriptScraper) scrapeMovieByURL(url string) (*models.ScrapedMovie, erro
 
 	return &ret, err
 }
+
+func findPythonExecutable() (string, error) {
+	_, err := exec.LookPath("python3")
+
+	if err != nil {
+		_, err = exec.LookPath("python")
+
+		if err != nil {
+			return "", err
+		}
+
+		return "python", nil
+	}
+
+	return "python3", nil
+}

ui/v2.5/src/docs/en/Scraping.md

@@ -85,7 +85,7 @@ script:
   - query
 ```
 
-This configuration would execute `python iafdScrape.py query`.
+Stash will find the correct python executable for your system, either `python` or `python3`. So for example. this configuration could execute `python iafdScrape.py query` or `python3 iafdScrape.py query`.
 
 Stash sends data to the script process's `stdin` stream and expects the output to be streamed to the `stdout` stream. Any errors and progress messages should be output to `stderr`.