Add catch for misspelled --task (#10420)

* Add catch for misspelled task

Signed-off-by: Leander van Eekelen <47320151+leandervaneekelen@users.noreply.github.com>

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Update val.py

Signed-off-by: Glenn Jocher <glenn.jocher@ultralytics.com>

* Update val.py

Signed-off-by: Glenn Jocher <glenn.jocher@ultralytics.com>

Signed-off-by: Leander van Eekelen <47320151+leandervaneekelen@users.noreply.github.com>
Signed-off-by: Glenn Jocher <glenn.jocher@ultralytics.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Glenn Jocher <glenn.jocher@ultralytics.com>

segment/val.py

@@ -463,6 +463,8 @@ def main(opt):
                 np.savetxt(f, y, fmt='%10.4g')  # save
             os.system('zip -r study.zip study_*.txt')
             plot_val_study(x=x)  # plot
+        else:
+            raise NotImplementedError(f'--task {opt.task} not in ("train", "val", "test", "speed", "study")')
 
 
 if __name__ == "__main__":

val.py

@@ -399,6 +399,8 @@ def main(opt):
                 np.savetxt(f, y, fmt='%10.4g')  # save
             os.system('zip -r study.zip study_*.txt')
             plot_val_study(x=x)  # plot
+        else:
+            raise NotImplementedError(f'--task {opt.task} not in ("train", "val", "test", "speed", "study")')
 
 
 if __name__ == "__main__":